Maryland registers septic system installers and inspectors through the Maryland Department of the Environment's Board of On-Site Wastewater Professionals. This page lists them from the official state roster.
| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| 1st Choice Inspection Service | Edgewater, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01613 |
| 24/7 Grease Trap & Services, Inc. | Manassas Park, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01115 |
| 247 Grease Trap & Services | Manassas Park, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02391 |
| 7 Enterprises, LLC | Towson, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02489 |
| A game inspections LLC | Huntingtown, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00014 |
| A pair of Hands Contracting | Bryans Road, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01948 |
| A-1 Pump Service, Inc. | Darlington, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00968 |
| A-1 Sanitation Service Inc | New Castle, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00358 |
| A-1 Septic Services, Inc. | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00542 |
| A-Plus Septic Service LLC | Galena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00736 |
| A. J. Michaels Company | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00373 |
| A. Murrays Home Inspections | Oakland, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00080 |
| A.E. Berg Plumbing | Federalsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01447 |
| A.S.A.P. Port-A-Pots, Inc. | Hampstead, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01828 |
| A.S.A.P. Pumping Services Corp (Lewis | Parsonsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01989 |
| A&A Construction and Utilities | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02082 |
| A&F Siteworks, LLC | Brandywine, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01793 |
| A&J Home Inspections LLC | Morgantown, WV | — | Inspector (BAT O&M)Installer (BAT)Installer (Sand Mound) | 02221 |
| A&V Septic Services LLC | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00279 |
| A+J Septic Cleaners | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01234 |
| A2Z Environmental Group, LLC | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00722 |
| AAH Consultants LLC | Lanham, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01990 |
| AB&H Excavating, Inc. | Callaway, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00885 |
| Abbott Septic Tank Service | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00503 |
| ABC Trucking & Backhoe Service Inc | Berlin, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00570 |
| ABM Property Services LLC | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00953 |
| Absolute Plumbing & Heating Inc | Fruitland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01798 |
| Absolute Plumbing LLC | Timonium, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02233 |
| Ac & T | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01564 |
| AC&T Co., Inc. | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00936 |
| Accurate Environmental LLC | Stevensville, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01598 |
| Acorn Environmental Inc | Severna Park, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00280 |
| Action Wasterwater Solutions, Inc. | North Beach, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00219 |
| Action Wasterwater Solutions, Inc. | Owings, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01780 |
| Adam Construction, LLC | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 00230 |
| Adams & Sons Constructions, Inc. | Cumberland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00556 |
| Addisu Woldesenbet | Silver Spring, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02411 |
| Adsg | Crownsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00303 |
| Advanced Surveys, Inc. | Chesapeake Beach, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00571 |
| Affordable Septic & Excavating LLC | Hagerstown, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 00992 |
| AJ Fenwick Septic, LLC | Avenue, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 00062 |
| AJ Mcdonald Co., Inc. | Glen Burnie, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00413 |
| AJK Hauling | Princess Anne, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02267 |
| Albright Excavating LLC | Grantsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01874 |
| Albright Services | Grantsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01264 |
| Alexander Plumbing services, INC | Darlington, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01522 |
| Alford Homes Inc | Manchester, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00979 |
| Alfred Bradford | Marion Station, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01970 |
| All About Septics, LLC | Pasadena, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 00012 |
| All Around Plumbing Inc. | Mount Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01896 |
| All in One Home Inspections, LLC | Hollywood, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02006 |
| All Mechanical And Plumbing, L | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02492 |
| Allen's Backhoe Service | Woodbine, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00288 |
| Alpha Plumbing | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00458 |
| American Combustion Industries Inc | Glen Dale, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00452 |
| American Outback Septic Service | Fruitland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01837 |
| American Sanitation, Inc. | Brandywine, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01902 |
| American Septic & Backhoe | Aberdeen, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00343 |
| Amerispec Home Inspections | Hartly, DE | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02023 |
| Amy Taylor Design and Drafting service | Arnold, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01988 |
| Anarex, Inc | Millersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00182 |
| Anderson Backhoe Service, Inc | Monrovia, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00127 |
| Anderson's A1 Plumbing | Hanover, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 02214 |
| Andrew Frase Excavating, LLC | Trappe, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01339 |
| Andrew Sebold | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00598 |
| Annapolis Sanitation | Centreville, MD | — | Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00212 |
| Annapolis Septic Service | Greensboro, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00211 |
| Anthony's Excavating | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 00952 |
| Antietam Excavating | Sharpsburg, MD | — | Inspector (Property Transfer) | 01718 |
| Antrim Septic Service | Greencastle, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00641 |
| Apex Plumbing and Gas | Union Bridge, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01426 |
| API Construction LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01840 |
| Appalachian Builders LLC | Kitzmiller, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02459 |
| Appel Excavating | Delta, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00090 |
| Apple Plumbing and Heating, Inc. | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00227 |
| Arkan, LLC | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01870 |
| Arrow Development Services, LLC | Charlotte Hall, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00636 |
| Arrow Environmental service inc | Grasonville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02340 |
| Arundel Kitchen Services | Gambrills, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02318 |
| Arundel Septic Services | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02218 |
| ASAP Pumping Service | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00592 |
| Ashby Property Services | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01445 |
| Athletic Field Consultants, Inc. | Queenstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01018 |
| Atlantic Bio Fuels, LLC. / Drain Rescue | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00520 |
| Atlantic Home Builders | Berlin, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01976 |
| Atlantic Mechanical, LLC | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02250 |
| Atlantic Pumping, Inc. | Bishopville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02090 |
| Atlantic Solutions | Tiverton, RI | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00673 |
| Atlantic Wastewater Solutions, LLC | Gambrills, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01137 |
| Atlantic Wastewater Solutions, LLC | Crofton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02468 |
| Atlas Inspections LLC | Charlestown, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01064 |
| Atwell, LLC | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00455 |
| Atwell, LLC | Southfield, MI | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01912 |
| Austins Dirtworks LLC | La Plata, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01176 |
| B & B Land Management | Chester, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00983 |
| B & W Plumbing | Park Hall, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02383 |
| B + S Septic/ Whaley’s Construction | Eden, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01373 |
| B and B Septic Service | Street, MD | — | Inspector (BAT O&M) | 00097 |
| B L Phippin Construction, Inc | Delmar, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01142 |
| B-N-B Excavating | Dameron, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01362 |
| B.B. Landscaping LLC | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00296 |
| B.E. Miller & Son Septic Services LLC | Street, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00415 |
| B.W. Compton Companies LLC | Port Tobacco, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01835 |
| B&B Excavating, Inc. | Lusby, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01539 |
| B&D Siteworks, LLC | Lexington Park, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00700 |
| B&K Excavating, LLC | Keymar, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00251 |
| B&R Excavating | Nottingham, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01189 |
| Back River Pre-Cast, LLC | Glydon, MD | — | 00148 | |
| Bailey Bros. Plumbing & Drain Services | West River, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02022 |
| Barrett and Associates | Prince Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00444 |
| Barry Bechtel General Contract Inc | York Springs, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00243 |
| Barton & Loguidice, D.P.C. | Eldersburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00693 |
| Barton & Loguidice, D.P.C. | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02156 |
| Bat Onsite LLC | Union Bridge, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00677 |
| Bathon Rentals | Queenstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01901 |
| Bay Area Associates Inc | Chesapeake City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00282 |
| Bay Engineering Inc. | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00558 |
| Bay Environmental Solutions LLC | Centreville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00631 |
| Bay hundred Environmental Vacuum P | St. Michaels, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01782 |
| Bay Property Maintenance LLC | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02400 |
| Bay Septic LLC | Solomons, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01740 |
| Bay State Land Services, Inc | Bel Air, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02200 |
| Bay to Beach Exteriors, LLC | Delmar, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01869 |
| Bayly's Septic Service, LLC | Crownsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01255 |
| Baylys Inc | Edgewater, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00507 |
| Bayside Excavation and Hauling LLC | Millington, MD | — | Installer (BAT) | 00349 |
| BBIBC Inc | Eden, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 00927 |
| Bean's Excavating & Hauling, LLC | California, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00509 |
| Beitzel Excavating LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00864 |
| BelHo, LLC | elton, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01508 |
| Ben Lewis Plumbing | Clarksburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01438 |
| Benchmark Engineering Inc | Ellicott City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01107 |
| Bengal Engineers LLC | Laurel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02466 |
| Bennett Construction Inc | Fruitland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01014 |
| Bennett Excavation | Damascus, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00372 |
| Bennett, Brewer & Associates, LLC | Frostburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00814 |
| Benning & Associates, Inc | Gaithersburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00761 |
| Bernella's Plumbing | Brooklyn, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01005 |
| Best Hands LLC | Newark, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01401 |
| Beuchert Excavating | Newburg, MD | — | Inspector (Property Transfer) | 01807 |
| Bfmd, Llc | Manchester, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01013 |
| Biddles' Excavating & Hauling Inc. | Myersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00453 |
| Bidle Brothers, Inc. | Keedysville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00454 |
| Bill Johnson Contracting | Conowingo, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02248 |
| Billings Excavating LLC | Street, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01771 |
| Billings Outback Septic Service | Millersville, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 00244 |
| BILT Construction, LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01942 |
| Bio Clean Portables | Laurel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01795 |
| Bishop's Backhoe & Plumbing, Inc. | Greensboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01533 |
| Black Oak Designs | Warfordsburg, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00106 |
| Blevins Septic Service | Freeland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00191 |
| Blooms Trucking & Septic service | Westminster, MD | — | Inspector (BAT O&M) | 00065 |
| Blue Crab Inspections | Stewartstown, PA | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02393 |
| Blue Wave Environmental Consulting, L | Fruitland, MD | — | Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00730 |
| Bob Rodeheaver | Friendsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01502 |
| Bob Taylor Engineering, Inc | Lexington Park, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 01397 |
| BOBCAT Septic Services | Lewes, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 02068 |
| Boggs Water & Sewage Co., Inc. | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00517 |
| Bohler Engineering VA, LLC | Towson, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01327 |
| Bowden Construction Solutions, LLC | Berlin, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01435 |
| Bowers Excavation | Grantsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00192 |
| Bowling Brothers Excavating, LLC | LaPlata, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00295 |
| Bowling Brothers Excavating, LLC | La Plata, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 01540 |
| Bowmans Septic Service | Thurmont, MD | — | Inspector (Property Transfer) | 01261 |
| Boyd & Dowgiallo, PA | Millersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01726 |
| Boyer Construction Inc | Knoxville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01045 |
| Bozman Sand & Gravel | Princess Anne, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01177 |
| BPM Heating Cooling and Plumbing | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02436 |
| Bpr, Llc | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01231 |
| BR Kreider & Son Inc | Manheim, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02135 |
| Bradley K Adams Plumbing Constructio | Airville, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02426 |
| Brant's Home Sales | Granstville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00245 |
| Brian J. Semler Excavating | Smithsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00955 |
| Brian T. Griffin | Lusby, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01604 |
| Briarwood Home Inspections, LLC | Catonsville, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01149 |
| Bridges Land Management | St Michaels, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00932 |
| Bridgesland Management Inc | St. Michaels, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00934 |
| Bright Day Farm | Taneytown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00311 |
| Bristows Hauling & Loading | Earleville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00136 |
| Broadneck Home Inspections LlC | Annapolis, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00035 |
| Brosnihan Builders Inc. | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00618 |
| Brothers Johnson, Inc | Port Republic, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01625 |
| Bruce Bagley | Barclay, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02330 |
| Bruce E. Doak Consulting, LLC | Freeland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01434 |
| Brummel Septic Service, LLC | Cambridge, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00195 |
| Bryant Built, LLC | Upper Marlboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01017 |
| BS Sucking LLC | Lusby, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02434 |
| Buckler Contracting, LLC | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01975 |
| Buckley's Plumbing, Heating & Air Con | Littlestown, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01984 |
| Bull Plumbing & Excavation | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 01981 |
| Bundick Well and Pump Company | Painter, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01120 |
| Bunker Hill Services Inc | Chesapeake City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00817 |
| Burns Septic Tank & Line Cleaning, Inc | Sykesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00294 |
| Busy Service Inc | Gaithersburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02513 |
| Byco Enterprises, Inc. | Grantsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00729 |
| C & L Excavating, Inc. | Forest Hill, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00104 |
| C.A. Kamm Corporation Inc | Harwood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00215 |
| C.A. Taciak & Sons | Towson, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00274 |
| C.E. Campbell Plumbing & Heating Inc | Pylesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00961 |
| C.J. Miller, LLC | Hampstead, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01492 |
| C.L. Boswell Jr. Septic | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00133 |
| C.L. Boswell Septic Tank Service | White Plains, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 01536 |
| C.M. Ayres enterprises LLC | Parkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00290 |
| C.R. Semler, Inc | Smithsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01065 |
| C.W. Gwynn Inc | Upper Marlboro, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00521 |
| C&C Plumbing & Septic | Hollywood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00784 |
| C&C Plumbing & Septic INC | Hollywood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00726 |
| C&D Services, LLC | Aberdeen, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00569 |
| C+S Contractors, LLC | Sharpsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01453 |
| Calvert Chaney Construction Company | Harwood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00247 |
| Calvert Septics & Excavation | Lusby, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02441 |
| Cameron Construction Inc. | Chaptico, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00377 |
| Cantwell Construction | Parsonsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 02260 |
| Capital City Sewer Service Inc | Severna Park, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00196 |
| Capitol Development Design Inc. | Beltsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02346 |
| Care Utilities, Inc. | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00198 |
| Caretake, Inc. | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00597 |
| Carl B Seeds Inc Sewer & Drain Clean | Owings, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01920 |
| Carr Family, LLC / Carr Services | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01278 |
| Carroll Bros Contracting LLC | Centreville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00379 |
| Carroll Land Services Inc | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01702 |
| Carter & Son Lawncare inc | Oxford, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02455 |
| Carter's Septic | Valley Lee, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00872 |
| CAS Engineering | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01178 |
| Casey Jones Enterprises Inc | Chester, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 00474 |
| Casey's Plumbing | Cloumbia, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01964 |
| Catoctin Labs, Inc. | Thurmont, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00048 |
| Cavender Excavating & Sawmill | Warfordsburg, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02463 |
| CB3 Consulting Services Inc | Upper Marlboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01028 |
| Cecil Coounty Gov't | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01411 |
| Cedar Hill Excavating | Peach Bottom, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01449 |
| Cedar Valley Septic Services | Williamsport, MD | — | Inspector (BAT O&M)Installer (BAT) | 02231 |
| Century Engineering, Inc. | Hunt Valley, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01399 |
| Cerny Enterprises, LLC | Aberdeen, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01944 |
| Certified Property Inspection, LLC | Hall, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01684 |
| Certified Water Testing LLC | Thurmont, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01608 |
| CG Point Consulting LLC | Virginia Beach, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02256 |
| CGC Builders, LLC. | Keymar, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01282 |
| Chaney Excavating | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01306 |
| Chaney Excavating, LLC. | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 02482 |
| Charles A. Klein & Sons, Inc | Sykesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00756 |
| Charles F. Murphy, Inc. Plumbing and H | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00418 |
| Charles P. Johnson & Associates, Inc | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01958 |
| Charles P. Johnson & Associates, Inc. | Silver Spring, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02450 |
| Charles W. Ennis Sanitary Service, Inc | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00308 |
| Charlie's Plumbing | Street, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01262 |
| Charlies Bobcat service Inc | Sykesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00347 |
| Chavis Enterprises, LLC | Forest Hill, MD | — | Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00089 |
| Chavis Enterprises, LLC | Jarrettsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00101 |
| Cheezum Construction | Hurlock, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01316 |
| Cheldine Management Consulting LLC | Leonardtown, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT) | 00301 |
| Chesapeake Drafting and Design, LLC | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01481 |
| Chesapeake Environmental Lab, Inc | Stevensville, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01572 |
| Chesapeake Environmental Services, L | Delmar, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00128 |
| Chesapeake Environmental Services, L | Pittsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02114 |
| Chesapeake Environmental Services, L | Princess Anne, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02115 |
| Chesapeake Hydrographics and Land S | Lusby, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02490 |
| Chesapeake Inspection Services | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02353 |
| Chesapeake Maintenance and Service | Greensboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01274 |
| Chesapeake Operations | Stevensville, MD | — | Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00064 |
| Chesapeake Operations / Lab Leasing | Stevensville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02208 |
| Chesapeake Plumbing, Inc | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00334 |
| Chesapeake Septic Service, LLC | Church Hill, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00119 |
| Chesapeake Trails Surveying, LLC | Leonardtown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01733 |
| Chesapeake Utilities & Construction Inc | Lusby, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00125 |
| Choptank Excavating, LLC | Denton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01154 |
| Chris Lee & Son, Inc. | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00595 |
| Chris Nonn LLC | Chesapeake City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02305 |
| CHT Excavating, LLC | Wittman, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00416 |
| CHT Excavating, LLC | St. Michaels, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 00705 |
| CJ Miller, LLC | Hampstead, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01757 |
| CL Grimes Excavating LLC | Lubsy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02355 |
| Clabaugh Construction | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01556 |
| Clark / Azar & Associates, Inc | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02365 |
| Clarksburg Plumbing, LLC | Clarksburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01416 |
| Clarksville Plumbing LLC | Hanover, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02378 |
| Classic Plumbing & Heating, Inc. | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01609 |
| Clayton Contracting, Inc. | Worton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00302 |
| Clean Cat Excavating & Landscaping | Port Republic, MD | — | Inspector (BAT O&M) | 00773 |
| Clean Delaware, LLC | Milton, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01164 |
| Clean Restroom Rental, Inc. | Waldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02072 |
| Clearview Mobile Home Park, LLC | Darlington, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00289 |
| Client first consultants, LLC | Germantown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02326 |
| Cliff Lowe III Enterprises, LLC | Stevensville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01871 |
| CLSI, Inc. | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00287 |
| CMS Associates | Ellicott City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02212 |
| COA Barrett, LLC | Prince Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02105 |
| COA Inc | Prince Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00479 |
| Colbert Matz Rosenfelt LLC | Owings Mills, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01461 |
| Cole Ventures, Inc | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01203 |
| Coleson's Septic Service | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00268 |
| Collinson, Oliff & Associates, Inc | Prince Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00530 |
| Colson Contracting, LLC | Union Bridge, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02517 |
| Colson's Septic Service | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01483 |
| Comer Construction Inc | Forest Hill, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02345 |
| Common Sense Solutions, LLC. | Laurel, DE | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00524 |
| Compass Home Inspections, LLC | Chesapeake City, MD | — | Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01528 |
| Concepts In Building, Inc | Lusby, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00409 |
| Concepts In Building, Inc | Solomons, MD | — | Installer (At-Grade)Installer (Sand Mound) | 01517 |
| Condons Excavating, LLC | New Windsor, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00249 |
| Conewago Enterprises, Inc | Hanover, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 02360 |
| Conner Bro. Plumbing | Greenwood, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00202 |
| Construction & Energy Services, LLC | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01549 |
| Cooper Septic LLC | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01787 |
| Copsey's Septic Service, Inc | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00389 |
| Corey T Sebold | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00599 |
| Corey's Construction | Waynesboro, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 02254 |
| Cornish S. Septic Services LLC | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00646 |
| Cossentino Septic LLC | Upperco, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00252 |
| Cotton's Septic | Dunkirk, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 01644 |
| Country Estates Inc | Delmar, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00894 |
| Countryside Excavating | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02107 |
| Countryside Excavation Inc | Hartly, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 01864 |
| Countywide Septic | Walkersville, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00489 |
| Countywide Septic Service | Callaway, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01987 |
| Coursey Excavating LLC | Cordova, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01308 |
| Cox Enterprises, LLC | Darlington, MD | — | Installer (Sand Mound) | 01417 |
| Cox Enterprises, LLC | Whiteford, MD | — | 02205 | |
| CQI Home Inspections | Hollywood, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02371 |
| CQI Home Inspections, LLC | Hollywood, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02257 |
| CR Kline Excavating | Keymar, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00757 |
| CRA Construction, Inc | Owings, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01730 |
| Creek View Construction LLC | Womelsdorf, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01957 |
| Creekside Land Management | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02319 |
| Cross Timbers Utility Inc | Monkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00434 |
| Crystal Custom Homes, LTD | Henderson, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00523 |
| CT Property Services, LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01433 |
| CT Stanley & Son Inc | Damascus, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00361 |
| Cullen Construction LLC | Warwick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02385 |
| Cullison Excavating, LLC | Callaway, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02551 |
| Cumberland Development Custom Hom | Union Bridge, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00962 |
| Custom Built by Laubach Construction, | Bel Air, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01847 |
| CV, Inc. | Gaithersburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02307 |
| CW Excavation LLC | Clearville, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02534 |
| D L Wickline Inc. | Littlestown, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00443 |
| D. Barnes Excavating LLC | Drayden, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01011 |
| D. Lee hagadorn LLC | Hurlock, MD | — | Inspector (BAT O&M) | 01140 |
| D.E. Nicholson Plumbing Repair, LLC | Worton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01658 |
| D.H. Steffens Co. | La Plata, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01168 |
| D.L. Poarch Excavation | North East, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00973 |
| D.L. Weller Excavating | Hancock, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00630 |
| D.W. Olden LLC | Sharpsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01055 |
| D&D Hauling & Excavating | Fairfield, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01439 |
| D&D Hauling & Maintain | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00514 |
| D&D Homes Inc | Lusby, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00091 |
| D&D Investments | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00824 |
| Daft, McCune, Walker Inc | Towson, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00637 |
| Dale Miller & Son Inc | Fawn Grove, PA | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00164 |
| Dameron Contracting LLC | Dameron, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00830 |
| Dan Wood | Fishing Creek, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00975 |
| Daniel Consultants Inc | Columbia, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01503 |
| Danny McHenry Backhoe & Paving Inc | Kennedyville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00160 |
| Danny Miedzinski & Son Excavating, L | Hollywood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00905 |
| Darbie and Sons Excavating Inc | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 02078 |
| Darling Ingedients | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01355 |
| Darling Ingedients | Curtis bay, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01356 |
| Darling Ingedients | Cutis Bay, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01357 |
| Dat Contracting LLC | Grantsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01372 |
| Dave's Pumping / Middleton Backhoe S | Waldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00583 |
| David A Good excavation | Greensboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 02456 |
| David A. Bramble, Inc | Chestertown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 00139 |
| David C. Bullock General Contractor, In | Union Bridge, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01451 |
| David E. Stein Construction | Grantsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 02063 |
| David L. Harris Excavating | Mechanicsville, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 01027 |
| Dayes Excavation LLC | Berlin, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02301 |
| DDC Property Maintenance LLC | Earleville, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01172 |
| Deborah Johnson LLC | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02249 |
| Deep Creek Construction | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02320 |
| Del Mar Construction, LLC | St. Michaels, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01808 |
| Della & Sons Excavating LLC | La Plata, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01918 |
| Delmarva Environment, Inc. | Dagsboro, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02410 |
| Delmorva Grounds Managements | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 01320 |
| Dennis Reynolds Excavating | North East, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 02100 |
| Denrock Excavating | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00388 |
| Denver Site Works | Forest Hill, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01978 |
| Derco Enterprise, Inc. | Huntingtown, MD | — | Installer (At-Grade)Installer (Sand Mound) | 01542 |
| Development Design Consultants Inc | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00725 |
| Development Facilitators, Inc. | Millersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00188 |
| Dewberry Engineers, Inc | Lanham, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01495 |
| DFS & Associates | Loveville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00601 |
| Dickson Plumbing | Clayton, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02387 |
| Dietz Surveying, Inc | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01448 |
| Digiterra Design, LLC | Camp Springs, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01190 |
| Dillard's Septic Service | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00731 |
| Disney Sand & Gravel LLC | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01139 |
| Diversified Applications | Thurmont, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02088 |
| DMH Plumbing & Excavating LLC | Huntingtown, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00525 |
| DMV Grease Trap, LLC | Germantown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02179 |
| Donald Butler | Galena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01459 |
| Donald D. Foster, Inc. | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01796 |
| Donald Holbrook | Rising Sun, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01194 |
| Dorsey Construction Service LLC | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02401 |
| Double H Landworks Inc. | Big Pool, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01945 |
| Doug Vann Excavating, Inc. | Princess Anne, MD | — | Inspector (Property Transfer)Installer (At-Grade) | 00552 |
| Douglas Bourquin LLC | Severna Park, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00293 |
| Douglas Clark | Bishopville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01963 |
| Douglas Contracting LLC | Washington, DC | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02281 |
| Drain Chief LLC | Forest Hill, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00847 |
| Drain Tamers | Nanjemoy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01443 |
| Draper Construction & Contracting LLC | Denton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00819 |
| Drew Olden | Keedysville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01334 |
| Driven Industries, LLC | Oakland, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02515 |
| DRS & Associates | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00327 |
| Drum Loyka & Associates, LLC | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00242 |
| DSI, Inc. | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02005 |
| Dukes Septic Services LLC | Milton, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02407 |
| Dun-Rite Septic Tank Services / Dun-R | Hampstead, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00993 |
| Duncan Home Improvement Services L | St. Leonard, MD | — | Inspector (BAT O&M) | 01577 |
| Duncan Lepper | Scotland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00679 |
| Duncan's Septic & Backhoe Services L | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00054 |
| Dustin Construction | Ijamsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02329 |
| Duvall Brothers Inc | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00815 |
| DXI Construction INC | Churchville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00776 |
| Dye Property Services LLC | Port Deposit, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01905 |
| Dynamic Earth, LLC | Chester, NJ | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00519 |
| Dynamic Earth, LLC | Dunedin, FL | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00527 |
| Dynamic Earth, LLC | Annapolis, MD | — | Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01280 |
| Dynamic Engineering Consultants PC | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00401 |
| E Wellen Contracting | Ocean City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00554 |
| E-Z Excavating | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01160 |
| E7 Hall Contractor | St. Mary's City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01182 |
| EA Engineering, Science, and Technolo | Hunt Valley, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01307 |
| Eagle & Son Septic | White Hall, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01580 |
| Earl E. Preston Jr. Inc. | Jarrettsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00451 |
| Earl E. Preston Jr. Inc. Whiteford Septic | Jarrettsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01913 |
| Earnshaw Brothers LLC | Bryantown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02337 |
| Earnshaw Brothers, LLC | Faulkner, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 01062 |
| Earp Inc. | Timonium, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00207 |
| Earthscapes LLC / Ruth Bros. Portable | Grasonville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 00949 |
| East Coast Excavating & Landscaping, | Preston, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00564 |
| East Energy Inc | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02201 |
| Eastern Acres LLC | Rising Sun, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01819 |
| Eastern Contracting Inc | Centreville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00264 |
| Eastern Engineers Group | Laurel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01992 |
| Eastern Shore Excavation | Pittsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00626 |
| Ed Tinus Services A-Z Upholstery | Whaleyville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02268 |
| Eddie Guy Septic | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00827 |
| Edward L Linsenmeyer P2H | Randallstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00533 |
| Ehrhardt Brothers Quality Plumbing | Columbia, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00463 |
| Electrical Solutions | Parsonsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00585 |
| Elite Excavating & Septic Service, LLC | Huntingtown, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00082 |
| Elk Development Corp | Earleville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01239 |
| Elzey's Septic Service / Slaughter Sept | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01943 |
| Emanuelson Plumbing & Heating | Keedysville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02364 |
| Emerald Plumbing Co. LLC | Burke, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01456 |
| Emory's Backhoe Service | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00567 |
| Empire Plumbing | Forestville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02328 |
| Ensor Plumbing | Owings Mills, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01293 |
| Ensor's Services | Warfordsburg, PA | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01585 |
| Entrust solutions group | Forest Hill, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01722 |
| Environmental Septic & Waste | Damascus, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 01051 |
| Ephes Kitchen Services | Capital Heights, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02302 |
| Eric Moore General Contracting LLC | Fairfield, PA | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00971 |
| ESE Consultants | Scottsville, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00563 |
| Essayons Engineering Services, LLC | Bel Air, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02123 |
| Eugene Copsey Plumbing, Septic & We | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00208 |
| Eugene Korell | Henderson, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00477 |
| Ewald Schwarzenegger | Smithsburg, MD | — | 00430 | |
| Ewing Construction, Inc | Cordova, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01093 |
| Exclusive Excavating LLC | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02296 |
| F & M Plumbing, Inc. | Conowingo, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01919 |
| F.E. Harrison & Sons Inc | Union Bridge, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00863 |
| F&A Excavating LLC | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01197 |
| Facility Engineering | Reisterstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00218 |
| Fanatic Inspection Services | 2Bowie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01946 |
| Farm & Home Excavating Inc. | Marriottsville, MD | — | Inspector (Property Transfer) | 02049 |
| Fawn View Construction, Inc. | Fawn Grove, PA | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00584 |
| Fejes construction LLC | Leonardtown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01876 |
| Fhe | Berlin, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02412 |
| Finamore Services, Inc. | Owings, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00883 |
| Fins Environmental Service LLC | Quarryville, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01848 |
| First Class Plumbing, LLC | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01526 |
| First Fruits Excavating Inc | Ridgeley, WV | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 00728 |
| First Works Horizon Homes & Commer | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01858 |
| Fisher, Collins & Carter Inc | Ellicott City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01047 |
| Flexlining | St-Thomas, QC | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02207 |
| Floyd Price Construction | Cumberland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 00591 |
| Fogle's Septic Clean Inc. | Syksville, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01463 |
| Fogle's Septic Clean Inc. | Sykesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02526 |
| Fogles Environmental LLC | Bishopville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02404 |
| For The Family LLC | Chaptico, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 01147 |
| Forged From Dirt LLC | Conowingo, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02471 |
| Forrester's Excavating Plumbing | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01166 |
| Four Corners Home Inspection | Lusby, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00009 |
| Fox Mountain Property Inspections | Boonsboro, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01982 |
| Fraley Modular Homes | Walkersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00659 |
| Francis Bollinger & Son Inc. | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00131 |
| Franco Smiroldo Company | Bowie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01590 |
| Frank Arnold Contractors, Inc. | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00504 |
| Frank Kamm General Contracting | Sudlersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00531 |
| Frederick Septic Company | Frederick, MD | — | Inspector (BAT O&M) | 00060 |
| Frederick Ward Associates, In | Bel Air, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02493 |
| Frederick Ward Associates, Inc. | Bel Air, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01894 |
| Freedom Septic Service | Sykesville, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00439 |
| Freedom Septic Service, Inc. | Sykesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00375 |
| Freestate Septic Service, Inc | Davidsonville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02429 |
| Friedel Contracting | Taneytown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00469 |
| Fringer Septic Cleaning | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01179 |
| Fyock Septic Service inc | Glenelg, MD | — | Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00627 |
| G H Nitzel, Inc. | White Marsh, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01659 |
| G Services LLC | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00316 |
| G.A. Mechanical Inc. | Kingsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01341 |
| G.L. Shannon Equipment Service | Nanjemoy, MD | — | Inspector (Property Transfer) | 01886 |
| G.T.G. Construction Co. LLC | Hughesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01206 |
| G&S Contracting Inc | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00699 |
| G&S Port O Let and Pumping LLC | Abell, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01133 |
| Galanek Environmental Services | Cambridge, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 01593 |
| Gamma Engineering | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01224 |
| Garcia's Mechanical llc | Gaithersburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02443 |
| Gardner & Sons Excavating | Stevensville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00987 |
| Garland L. Brian Sr., LLC | Highland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01217 |
| Garrison Plumbing LLC | Forest Hill, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00317 |
| Gast Construction Co., Inc. | Jarrettsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00210 |
| Gateway Construction Inc. | Clayton, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00157 |
| Gator Construction | Rising Sun, MD | — | Inspector (Property Transfer) | 00529 |
| General Construction Services LLC, DB | Stafford, VA | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01488 |
| General Excavating | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00713 |
| Geographics | Cumberland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01155 |
| George, Miles, Buhr LLC | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01854 |
| Gerald Taylor Co., Inc. | Williamsport, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02048 |
| Ghd | Camp Hill, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02498 |
| Gibson Excavating | Bushwood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01834 |
| GL Shannon Equipment service | Nanjemoy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 02167 |
| Glanden Construction, LLC | Denton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01851 |
| Glen's Septic Service | Hancock, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01000 |
| Glenn G. Gass P.E. | Colton's Point, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01022 |
| Golden Leaf Contracting, Inc. | Lothian, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01815 |
| Golden Plumbing | Artemas, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02542 |
| Good Life | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01441 |
| Good Shepherd Septic Service, Inc. db | White Marsh, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02293 |
| GoPros Inspections llc | Swanton, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02541 |
| GotUGo | Glen Burnie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01739 |
| Gotugo, LLC | Glen Burnie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02344 |
| Gradient Construction, LLC | Chesapeake Beach, MD | — | Inspector (BAT O&M) | 00172 |
| Grand Lawn Services, LLC. | Sharpsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02544 |
| Green protection Inc | Hyattsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02087 |
| Green Rock Services, LLC | Middle River, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02247 |
| Green's Septic & Excavation, LLC | Chestertown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00092 |
| Greenlight Home Improvements | Earleville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01407 |
| Greenwick Septic Service | Parkesburg, PA | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01587 |
| Greg Koski Building & Construction INC | Secretary, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01773 |
| Greg's Excavating & Utilities, Inc. | Big Pool, MD | — | Inspector (BAT O&M) | 01002 |
| Gregg Kamp Excavating LLC | Lonaconing, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00754 |
| Griffin Anderson Engineering LLC | Arnold, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02488 |
| Griffin General contracting | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00319 |
| Grounded Operations LLC | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02314 |
| GroundScape Excavation & Landscapi | New Providence, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02127 |
| Grove's Groundwurx LLC | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01899 |
| GT Septic services llc | Baltimore, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00042 |
| Gto | Philadelphia, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02521 |
| GTO services | Philadelphia, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00644 |
| GTO services Inc | Laurel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00578 |
| Gullion's Construction | Hurlock, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00742 |
| Gutschick, Little & Weber, P.A. | Burtonsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01310 |
| Gutshick Little & Weber, P.A. | Burtonsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01965 |
| Guy Excavating LLC | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00826 |
| H.R. Willson Septic Service & Excavati | Davidsonville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00276 |
| H&B Plumbing & Heating, Inc. | Chesapeake City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01276 |
| Hackett Clearing & Landscaping LLC | Rhodesdale, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00743 |
| Hafields Equipment and Dedication svc | Laurel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02008 |
| Hafields Equipment and Dedication svc | Annapolis Junction, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02009 |
| Hall's Septic LLC | Havre De Grace, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01605 |
| Hammered Ranger Fabrication LLC | Princess Anne, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 01082 |
| Hannah Construction LLC | La Plata, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02165 |
| Hanover Land Services Inc | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00668 |
| Harland J. Shoemaker & Son Inc. | New Market, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01855 |
| Harman Septic Care Inc | Cambridge, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00745 |
| Harmon Excavating LLC | Grantville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02451 |
| Harold Anger | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02395 |
| Harper & Sons, Inc | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01752 |
| Harris | Bowie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01762 |
| Harris Excavating Solutions LLC | Hollywood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00957 |
| Harris Septic System | Monkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00046 |
| Harry O. Shaneybrook, Inc. | Reisterstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01697 |
| Harry P Jester Jr | Millington, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00329 |
| Hartland Earthworks, LLC | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01318 |
| Hatfield Equipment & Dedication Svcs | Laurel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00297 |
| Hatfields Equipment & Dedication servi | Laurel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02300 |
| Hatfields Equipment & Dedication Svcs | Laurel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00320 |
| Hatfields Equipment and Dedication Sv | Laurel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02065 |
| Hayden's Septic, Inc. | Huntingtown, MD | — | 00093 | |
| Herbert Excavating | Hughesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01427 |
| Here to Help LLC | Bloomington, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01256 |
| Hershman Construction LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01402 |
| HG Berry Excavation | Owings Mills, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01296 |
| High Tech Inspections | Salisbury, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00049 |
| Highland Engineering & Surveying, Inc | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00390 |
| Hill Bros Excavation | Hartly, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01283 |
| His Way Plumbing | Cockeysville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02323 |
| HK Land Management LLC | Friendship, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02537 |
| Hobbs Contractors Inc. | Denton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00181 |
| Hoffman Excavating & Hauling LLC | Hagerstown, MD | — | Inspector (BAT O&M) | 00748 |
| Holland Brothers LLC | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00966 |
| Holler Contracting LLC | Mt. Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00989 |
| Home Land Environmental | Towson, MD | — | Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00780 |
| Home Land Environmental, LLC | Middle River, MD | — | Installer (At-Grade)Installer (BAT) | 01534 |
| Home Land Environmental, LLC | Towson, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02512 |
| Home Specialties LLC | Owings, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01395 |
| HomeLand Environmental | Towson, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02083 |
| Hometown Inspections LLC | Snow Hill, MD | — | Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00002 |
| Hooper Septic | Sykesville, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 00260 |
| Hoot Heating & Air Conditioning LLC | Rising Sun, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02473 |
| Houser Engineering, LLC | Ringwood, NJ | Passaic | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01917 |
| Howard Alperstein | Arnold, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02245 |
| Hps | Glen Burnie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00889 |
| Huey Hite | Inwood, WV | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02158 |
| Hydro-Terra Group | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00456 |
| Hydro-Terra Group | — | — | Inspector (Property Transfer)Installer (At-Grade) | 00666 |
| Illian and Sons Inc. | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01364 |
| IMEG Consultants Corp. | Lanham, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01467 |
| Innovative Septic, LLC | Hughesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01162 |
| Irvin Hayes Plumbing & Heating | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00667 |
| Island Aggregate | Stevensville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00793 |
| J & A Construction Services, Inc. | Mt. Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02098 |
| J Hopson Consulting LLC | Lusby, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00829 |
| J M Mechanical | Abingdon, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00445 |
| J P Plumbing Services Llc | Lusby, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02548 |
| J R Pereira Construction, Inc | Owings, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00117 |
| J W Salm Engineering, Inc. | Berlin, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00785 |
| J. Browne Excavating LLC | Leonardtown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01788 |
| J. Calvin Wood Jr., Inc. | St. Leonard, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01538 |
| J. Dennis Bosley Services, LLC. | Street, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 00096 |
| J. Maurice Carlisle Inc | Dickerson, MD | — | Inspector (BAT O&M)Installer (BAT) | 00508 |
| J. Richard Breeding Excavating, Inc. | Denton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00134 |
| J.A. Horst & Sons | Clear Spring, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00990 |
| J.E.M Plumbing & Heating Inc. | Fallston, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00970 |
| J.F. Sobieski Mechanical Contractors In | Newark, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00490 |
| J.H Wastewater Strategies | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02332 |
| J.M. Renehan | Taneytown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00842 |
| J.M. Tennyson Construction LLC | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01003 |
| J.P. Seworootor Inc | Beltsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00762 |
| J.R. Services, LLC | Smithsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02122 |
| J.R.'s Septic Service, Inc. | Earleville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02538 |
| J.V.M. Plumbing LLC | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01959 |
| J.W Environmental, LLC | Phoenix, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01331 |
| J.W.P Environmental, Inc. | Mercersburg, PA | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01033 |
| J&J Environmental Services | Owings, MD | — | Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00077 |
| J&J septic LLC | Indian Head, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02354 |
| J&W Excavating | Leondardtown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00612 |
| J+R Plumbing + Heating, Inc | Severn, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01892 |
| JAA Services | Drayden, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00286 |
| Jacob Lapp | Ronks, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 01898 |
| Jacob's Plumbing | Crownsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02166 |
| JAD Construction, LLC | Lothian, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00645 |
| Jade Enterprises Inc | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00802 |
| Jadis , Llc | Wilmington, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02272 |
| JAL Construction LLC | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01053 |
| James (Greg) Smith | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02149 |
| James A. Briddell & Son Inc | Princess Anne, MD | — | Installer (At-Grade) | 00639 |
| James A. Briddell & Sons | Princess Anne, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02215 |
| James D. Howard Excavating & Septic | Deale, MD | — | Inspector (BAT O&M) | 00006 |
| James Goddard Excavating, LLC | Leonardtown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01024 |
| James R. Powell Environmental Consu | Catonsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00033 |
| James Reed Excavating | Big Pool, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00593 |
| James Sherman | Centreville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01895 |
| JAS Engineering & Design, LLC | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02432 |
| JC Septic | Hebron, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01479 |
| JCI Environmental Inc | Upper Marlboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02288 |
| JE Turnbaugh and Heating LLC | Taneytown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02356 |
| Jemel Anderson | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02137 |
| Jerry Price Construction | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01277 |
| Jet Septic | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01215 |
| Jiffy John Inc | Capitol Heights, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00740 |
| Jimmy Herbert Septic | Bashwood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01141 |
| Jimmy Landon Jr Excavating Inc | Pocomoke, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01336 |
| Jimmy's Septic LLC | Sunderland, MD | — | Installer (At-Grade)Installer (Sand Mound) | 00094 |
| JL Land Service | Hebron, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00676 |
| JLP Civil Inc | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02160 |
| JMD Mechanical LLC | Denton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00143 |
| JNB Services, LLC | Bruceton Mills, WV | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01881 |
| JNM Engineering LLC | Mount Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01458 |
| JNS Services | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02409 |
| Joe's Quality Plumbing & Heating servi | Rosedale, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01759 |
| John B. Hurry | Clements, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00611 |
| John Bounds Plumbing, LLC | Marriottsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02349 |
| John Carre Services LLC | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01273 |
| John DeReggi | Boyds, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02431 |
| John G Webster | Stevensville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02265 |
| John Klines Septic services | Mount Joy, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02178 |
| John Kriner Plumbing & Heating | Williamsport, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02283 |
| John Prout | Shady Side, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01670 |
| John Seek Septic Tank Pumping LLC | Laytonsville, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01547 |
| John's Septic Service LLC | Aberdeen, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00137 |
| Johnnie Beckman Excavating Inc. | Rawlings, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00959 |
| Johnnie's Heating Air Conditioning | Gwynn Oak, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02071 |
| Johnny Blue, Inc. | Winchester, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00197 |
| Johnson Excavating & Paving, LLC | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00994 |
| Johnson Sewer & Drain T/A Roto Roote | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00798 |
| Johnson's Excavating and Lawn servic | Elkton, MD | — | Inspector (Property Transfer) | 02285 |
| Johnson's Sewer & Drain Cont., Inc. T/ | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00737 |
| Jonathan Pelletier | — | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02295 |
| Jones Pump Service | Jarrettsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00562 |
| Jones Septic Service | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01775 |
| Jones Site Work | Chance, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00996 |
| Joseph Heil Company/Heil Plumbing | Jessup, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00323 |
| Joseph Thompson & Associates, LLC | Bel Air, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00602 |
| Joseph Washington | Silver Spring, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01486 |
| Josh Crampton Excavating | Keedysville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01265 |
| Joshua (Tyler) Gass | — | — | Installer (At-Grade)Installer (Sand Mound) | 01813 |
| JP Plumbing Service LLC | Lusby, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02398 |
| JRO Associates, LLC | Middle River, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01941 |
| JV Harrison Backhoe & Septic | Sykesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02084 |
| JW Graner Inc | Sunderland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02220 |
| JW Whitehead & Assoc. | Warrenton, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02206 |
| K & L Pumping & Septic Service | Newburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 00774 |
| K J H Enterprises Inc | Fallston, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01109 |
| K.N.C. Excavating & Outdoor Solutions | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02529 |
| K&K Backhoe service | Robbins, TN | — | Inspector (Property Transfer)Installer (BAT) | 00482 |
| Kaizen Technologies Inc | Chicago, IL | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 02251 |
| Karl Pile Septic Service | Hagerstown, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00063 |
| KCI Technologies, Inc. | Sparks, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01421 |
| KCW Engineering Technologies, Inc. | Glen Burnie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01363 |
| Kelco Plumbing & Backhoe Service | Sabillasville, MD | — | Inspector (BAT O&M)Installer (BAT) | 02347 |
| Kelco Plumbing & Backhoe Service LLC | Sabillasville, MD | — | 01063 | |
| Kelly's Excavating | Cambridge, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01335 |
| Ken Burns Sanitation INC | Ridgely, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01333 |
| Ken Parsons Designs | New Windosr, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01473 |
| Kenley T Hubble, LLC/ Hubble Trucking | Ijamsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00752 |
| Kenneeth W. Frock Plumbing | Union Bridge, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01021 |
| Kenneth W Matthews Electric, Plumbin | Kennedyville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01099 |
| Keplingers Excavating Inc | Boonsboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02315 |
| Kevin Hugel, Sr. | — | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02430 |
| Keystone Wastewater Services, Inc. | Loretto, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00586 |
| Kidwell Construction Company | Points, WV | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01956 |
| Kimley-Horn & Associates, LLC | Towson, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01967 |
| King & Son Septic Service | Manchester, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00067 |
| King & Son Septic Service | Gaithersburg, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 01634 |
| King & Sons Septic Service LLC | Manchester, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01489 |
| King & Sons Septic Service LLC | Gaithersburg, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01883 |
| King Excavation llc | Westover, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02140 |
| Kings Construction Materials, LLC | Woodbine, MD | — | Inspector (BAT O&M) | 02202 |
| Kinsley Construction, LLC | York, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01786 |
| Kirkwood Pest Control, Inc. | Earleville, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00005 |
| KJ Wells Inc. | Kingsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01949 |
| KJs Land Management | Kitzmiller, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02089 |
| Klepsig Plumbing, LLC | Darlington, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02056 |
| Kline's Services | Salunga, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01755 |
| KMB company llc | Chestertown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02444 |
| KNF services llc/Garrett Housing servic | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01861 |
| Kope Enterprises, LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00899 |
| L.S. Smith Excavating | Taneytown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00628 |
| Lagana Land Consulting, LLC | Hughesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01079 |
| Lakefront Enterprises INC | Swanton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01258 |
| Lanchester Soil Consultants | West Grove, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02454 |
| Land Trust Home Builders LLC | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01208 |
| Lander Septic Service LLC | Nottingham, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01744 |
| Landesign Inc | Bowie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02164 |
| Landtech Corporation | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02104 |
| Lane Engineering LLC | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02338 |
| Lannen Underground Plumbing | Joppatowne, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02408 |
| Lansdowne Development Corporation | Waldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02497 |
| Larry Fogle Jr. | Thurmont, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00739 |
| Larry Hills & Sons Excavating Inc | Great Mills, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00867 |
| Larry Hills and Sons Excavating, Inc. | Great Mills, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01923 |
| Larry Hils & Sons Excavating, Inc. | Great Mills, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01842 |
| Larry Sebold | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01694 |
| Larson's Tree Service & Landscaping | Childs, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01184 |
| Lawrence Abell And Associate | Laplata, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02546 |
| Lecco Pipe Line Co. LLC | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 00854 |
| Lecco Pipeline Co. LLC | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01241 |
| Lee Foundation Co., Inc. | Middle River, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00758 |
| Lee Industries Inc | Huntingtown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00405 |
| Lee's Pumping & Septic | Charlotte Hall, MD | — | Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01031 |
| Legacy Septic & Excavation, LLC | Manchester, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02211 |
| Legacy Septic & Excvation LLC | Manchester, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02350 |
| Leigh & Sons | N Potomac, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00532 |
| Leon A. Podolak and Associates, L.L.C | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00265 |
| Leon Johnson, Jr. T/A Septics, Landsca | Fruitland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01156 |
| Leonard Excavation + Septic Service | Chestertown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01491 |
| Leppo Excavating LLC | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00941 |
| Leru Excavating | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01222 |
| Liberty Home Inspections | Elkton, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 01559 |
| Lil Bears Septic + Port A Pot | North East, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01850 |
| Limitless Contracting LLC | Thurmont, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00942 |
| Lindstrom Excavating Contractors Inc | Worton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01778 |
| Lindzy Properties LLC | Hollywood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02157 |
| Linear Surveys Inc | Leonardtown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00839 |
| Linsenmeyer Excavation | Randallstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00281 |
| Linton Services | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02253 |
| Liquid Environmental Solutions | Rosedale, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01343 |
| Liquid Environmental Solutions | Irving, TX | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02091 |
| Little Silences Rest Inc | Leonardtown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01619 |
| Livingston Septic Service, Inc. | Easton, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01524 |
| Livingston Septic Service, Inc. | — | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02110 |
| Locust Lane Farms, Inc. | Upper Marlboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01660 |
| Lorenzi, Dodds, & Gunnill | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01054 |
| Lost Land Construction, LLC. | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02286 |
| LSD Enterprise, Inc | Huntingtown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01487 |
| Ltp, Lsi. Llc | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01804 |
| Lupcho Construction | Damascus, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 02227 |
| Luxury Flush, LLC | Oxford, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02531 |
| M.A.F & Associates, LLC | Severna Park, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00145 |
| M.T. Gaither | Brookeville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02124 |
| M.W. Pride Inc | Delta, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 00605 |
| M&M Environment LLC | Glen Burnie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02159 |
| M&M Excavating Inc | Huntingtown, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 01057 |
| M&N Excavating | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02284 |
| Macris, Hendricks & Glascock, P.A | Montgomery Village, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00648 |
| Madden Plumbing and HVAC Inc. | Beltsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01036 |
| Madison Mechanical Contracting LLC | Catonsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01245 |
| Magnolia Group | Sunderland, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 01628 |
| Magnolia Plumbing | Waldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00471 |
| Magnolia Plumbing | Suitland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00553 |
| Magnolia Plumbing, Inc. | Washington, DC | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00943 |
| Magnolia Plumbing, Inc. | Laurel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01537 |
| Mahon Plumbing Inc | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00159 |
| Maintenance Solutions LLC | Hurlock, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01368 |
| Manor Excavating Inc | Phoenix, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02335 |
| Manor General LLC | Monkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02334 |
| Marc D Hereth Construction LLC | Woodbine, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 02141 |
| Marcos Alvarez | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02289 |
| Marcum Plumbing Services Inc. | Jarrettsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02304 |
| Marino Plumbing & Heating #8539 | Rosedale, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01360 |
| Mark E. Breeding & Son Excavating, LL | Federalsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00193 |
| Mark T Hudson Landscaping & Excava | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01267 |
| Mark Williams | Leonardtown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00710 |
| Mark's Lawn Service Inc. | Huntingtown, MD | — | Installer (At-Grade)Installer (Sand Mound) | 00083 |
| Marples Mulching LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02469 |
| Marshall's Excavating, Inc. | Port Tobacco, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01163 |
| Marston & Son Septic Service & Installa | Conowingo, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02189 |
| Martin's Excavation & Hauling LLC | Centreville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01476 |
| Maryland Land Services LLC | Mt. Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00112 |
| Maryland Mechanical Systems, Inc. | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02102 |
| Matarazzo Contracting LLC | Churchville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02099 |
| Mathena Septic Service Inc. | Westminster, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00337 |
| Matis Consultants, LLC | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01263 |
| Matis Warfield Inc | Sparks, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01300 |
| Mattera Excavating & Hauling, LLC | Huntingtown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01968 |
| Matthew Hearn | Pittsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 02261 |
| Matthew Rust, LLC | Hurlock, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02168 |
| Matthew S. Keen Construction | Lusby, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00154 |
| Matthews Excavating | Worton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01158 |
| Mausen Homes LLC | La Plata, MD | — | Inspector (Property Transfer) | 01772 |
| Maust Excavating | Accident, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02062 |
| Mayes Septic & Port A Pots LLC | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02216 |
| McCrone | Centreville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00404 |
| McCRONE Professional Engineers & S | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01504 |
| McCRONE Professional Engineers & S | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01696 |
| McDonald & Sons Contracting LLC | Spring Grove, PA | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01924 |
| McKeon Associates Inc. | Street, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00161 |
| MCS Plumbing | Waldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02467 |
| MCS Pumping (Management Consulta | Waldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01738 |
| Meekins Outdoor LLC | Accident, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02532 |
| Messick & Associates | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00419 |
| Messick & Associates | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01181 |
| Messick & Asssociates | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00435 |
| Messick and Associates | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00420 |
| Messick and Associates | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00674 |
| Messick and Associates Inc | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00464 |
| Messick Group inc | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00376 |
| Messick Home Improvement Inc | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02139 |
| Messick Home Improvements Inc | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00903 |
| Michael and Son Services, Inc | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02384 |
| Michael Clarke | Hollywood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02246 |
| Michael Runk Plumbing & Heating LLC | Sykesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02067 |
| Michael Septic Service | Finksburg, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00346 |
| Mick'S Plumbing & Heating, Inc | Thurmont, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01052 |
| Mid Atlantic Septic | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00772 |
| Mid Atlantic Septic / Nichols Septic Ser | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02389 |
| Mid Maryland Excavating Inc | Jefferson, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00808 |
| Mid-Atlantic Water Services | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01243 |
| Middleton Backhoe Service LLC (Dave | Waldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00341 |
| Middleton's Construction Co., LLC | Centreville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00904 |
| Midshore Septic | Federealsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01096 |
| Mike Bitner Company | Deposit, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01220 |
| Mike Bowes & Sons Contracting | Callaway, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT) | 00981 |
| Mike Jones Plumbing, LLC | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02342 |
| Mike's Custom Homes Inc | Centreville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00694 |
| Mikes Excavation | Stevensville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02465 |
| Miller's Land Services Inc | Princess Anne, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00342 |
| Miller's Septic Service | Crownsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00689 |
| Mini Excavation Services | Aberdeen, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00084 |
| Mirfin Excavating & Paving LLC | Hanover, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01779 |
| Mitchells service center llc | Hollywood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02263 |
| Mks Architecture Llc | Severna Park, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02556 |
| Mona Excavating | La Plata, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 01653 |
| Monocacy Custome services Inc | Barnesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00812 |
| Monumental Lnad Surveys LLC | Owings, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01272 |
| Morgan Creek General Contracting LLC | Middletown, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01960 |
| Morgan E. Russee Inc. | Huntingtown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00561 |
| Mountain Top Excavating & Constructio | Blue Ridge Summit, PA | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01105 |
| Mountain Top Excavation | Frostburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00635 |
| Mountain Valley Outdoor Services | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01962 |
| Mowbray Excavation | Cambridge, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 00906 |
| Mowbrays Backhoe Services LLC | Federalsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01845 |
| MRG Plumbing | West Friendship, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01457 |
| MTM Plumbing Works LLC | Mount Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02474 |
| MTR Construction LLC | Oaklanad, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01257 |
| Mullenax Excavating, Inc | Ottsville, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02504 |
| Murphy's Septic & Excavating | Ijamsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00536 |
| Murray Underground Services | Frederick, MD | — | 00344 | |
| Musselman Excavating, Inc. | Libertytown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02252 |
| MW Willard Plumbing & Heating Inc. | Sharpsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02453 |
| National Abatement And Wreck | Gaithersburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02543 |
| National Construction Company | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00995 |
| Nature Calls Septic Design LLC | Myersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01907 |
| Naumann Plumbing, LLC | Crofton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00221 |
| Nautical Contracting, LLC | Forest Hill, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02210 |
| Naylor Plumbing, Heating and Air Cond | Finksburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00652 |
| Near Shore Engineering LLC | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01049 |
| New Dimensions Plumbing | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01367 |
| Next Level Home Inspections | Huntingtown, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01196 |
| Nicolas Drain Services LLC | Belair, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00856 |
| NJR & Associates LLC | West Friendship, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02311 |
| Noland Landworks LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 01236 |
| Northern Way LLC | Jarrettsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02235 |
| Norton Land Design LLC | Ellicott City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00840 |
| Nos | Lexington Park, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01032 |
| Nu Engineering LLC | Waldorf, MD | — | Inspector (Property Transfer) | 00880 |
| O'connell & Lawrence Inc | Olney, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00855 |
| Oak Hill Construction, LLC | Silver Spring, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00512 |
| Oakley Martin | Knoxville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01126 |
| OC Home Care DBA Blue Crab Inspec | Joppa, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01494 |
| OC HomeService Group LLC | Delmar, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02413 |
| Old Line Septic | Frederick, MD | — | 02070 | |
| Olden Excavating Inc | Keedysville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00972 |
| Olingers Paving, LLC. | Littlestown, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00223 |
| OnSite Construction, Inc. | Seaford, DE | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01908 |
| Onsite Septic Inspection & Service LLC | Denton, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00717 |
| Onsite, LLC | Union Bridge, MD | — | 00664 | |
| Osis, Llc | Denton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02516 |
| Outback Porta Jon Inc | Prince Frederick, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02106 |
| Owen Excavation, LLC | Chestertown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00116 |
| Ox Construction | New Windsor, MD | — | Inspector (Property Transfer)Installer (At-Grade) | 01866 |
| Ozman Turf Management, LLC | Trappe, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00954 |
| P & P Construction, Inc. | Rising Sun, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01135 |
| P.E. Moore & Sons Contruction, LLC | Trappe, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01480 |
| Parks Septic Sewer & Drain Inc./Mr. Ro | Cordova, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00325 |
| Parks Septic Sewer & Drain, Inc./dra ro | Cordova, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01446 |
| Parsa Engineering | Leesburg, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02336 |
| Parsons Contracting LLC DBA L.E. Par | Dover, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02361 |
| Parsons Excavating | Eglon, WV | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01103 |
| Pat Hanline Excavating, LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00522 |
| Pat the Plumber | York, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02069 |
| Patchett Excavating | Centreville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00423 |
| Patriot Property Inspections | Port Republic, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00074 |
| Paul Dymond, Jr | Woodbine, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01252 |
| Paul McKenzie Excavating | Frostburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00625 |
| Paul T. Ewing Inc | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01442 |
| Pauls Landworks & Construction LLC | Quantico, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01384 |
| Peninsula Irrigation, Inc. | Whaleyville, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01753 |
| Penn's Trail Environmental, LLC | Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00100 |
| Pennoni | Columbia, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02143 |
| Perceptive Engineering LLC | Potomac, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02309 |
| Perfect Plumbing Services LLC | White Marsh, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02209 |
| Perry's Solid Waste Disposal | Mt Lake Park, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01321 |
| Phillips Property Solutions LLC | East New Market, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 02435 |
| Pickles Services Inc | Taneytown, MD | — | 00487 | |
| Pierson Comfort Group LLC | Ridgely, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01665 |
| Pierson Environmental Services, LLC | Landenberg, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01770 |
| Pile Septic Service LLC | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00837 |
| Pile's Concrete Products Co., Inc. | Friedens, PA | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01839 |
| Pinder Home Services | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02358 |
| Pinecrest Development LLC | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01271 |
| Pinnacle Design Development Inc | Fallston, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00465 |
| Pinnacle Excavating Inc | Bel Air, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 00516 |
| Pipe Down Plumbing Service, LLC | Mt. Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01186 |
| Pipeine Pro Solutions, LLC | Churchville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02499 |
| PiPi Septic Services | Oxford, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01868 |
| Pleasanton Excavating and Paving | Warwick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 02560 |
| Pleasanton Excavating, Inc | Warwick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01174 |
| Pleasanton Excavating, Inc | Cecilton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01794 |
| Plumbing Express | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01636 |
| Plumbing Service Unlimited Inc | Charlotte Hall, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00884 |
| Pole Buildings Plus, Inc | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 02545 |
| Portable Restroom Solutions, LLC | Middle River, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00681 |
| Potomac Excavating, LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01867 |
| Potomac Mechanical Contractors Inc. | Gaithersburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01966 |
| Potomac Valley Surveys | Poolesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00760 |
| Pr Llc | Clarksburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02491 |
| Premium Site Services LLC | Warwick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01469 |
| Preston Excavating LLC | Grantsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00614 |
| Preston Landscaping LLC | Fulton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02266 |
| Preston R. Smith Plumbing & Heating I | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 01710 |
| Price & Son Septic | Eden, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01035 |
| Prime Plumbing | Glen Burnie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02480 |
| Prime Plumbing LLC | Glen Burnie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00220 |
| Primo Inspectors LLC | Gambrills, MD | — | Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00028 |
| Priority Septic Services | Hyattsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02483 |
| Pro-Tech Mechanical Construction | Joppatowne, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01818 |
| Provincial Inc | Stevensville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01856 |
| PurBilt, Inc. | Laurel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01955 |
| Quality Well & Septic service | Prince Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00651 |
| Queen Bee's Septic, LLC | Chesapeake City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01774 |
| Queen's Backhoe & Septic Service | Odenton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01940 |
| Quill Management Consultants LLC | Lanham, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02557 |
| R & M Plumbing & Mechanical LLC | Glenville, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01102 |
| R & R Scapes And Maintenance | Aquasco, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02495 |
| R Burton Enterprises | Freeland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00511 |
| R. Carpenter Construction Inc | Joppa, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00199 |
| R. Victor Buckler | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00870 |
| R. Webb Excavating LLC | Hockessin, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00803 |
| R.H. Perkinson, Inc | Stevensonville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02442 |
| R.K. Boswell Septic | LaPlata, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01299 |
| R.T. Absher Jr. General Contracting Inc | Seaford, DE | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00285 |
| R.Work Excavating & Trucking | Quarryville, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02144 |
| R&E Chief Septic LLC | MT Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02053 |
| R&E Septic Brothers And Sons LLC | Crisfield, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 01889 |
| R&P Backhoe Service Inc. | Clarksburg, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00071 |
| Rainbow Construction | Waldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00661 |
| Rainbow Construction Inc. of Waldorf | Waldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 01230 |
| Rampsey Nicholson | Grantsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02528 |
| Rapid Rooter Plumbing | Ellicott City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01392 |
| Rauch Inc | Easton, MD | — | Inspector (BAT O&M) | 01635 |
| Ray Hanline Excavating llc | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02297 |
| Ray Weed Builder LLC | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01213 |
| Raymond Harrison Septic service | Chestertown, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02224 |
| Raymond Harrison Septic Services LLC | Chestertown, MD | — | 00149 | |
| Raymond Lambert | Swanton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02375 |
| Rayne's Sand & Gravel Inc | Berlin, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00778 |
| Raztec Associates, Inc. | Monrovia, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01797 |
| RBE contracting llc | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02438 |
| Real Property Maintenance LLC | Salisbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01376 |
| Red Carpet Home Inspections | Brandywine, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01490 |
| Redgate Farm Enterprises, Inc. | Chaptico, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01954 |
| Reel Excavation LLC | Delta, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02390 |
| Reise Enterprises Inc | Damascus, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01516 |
| Retallack & Sons Inc | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01428 |
| Revolutioners Plumbing, LLC DBA Ben | Mt Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01810 |
| Rex Co. LLC | Sunderland, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00940 |
| RFP, Inc | Middletown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01285 |
| RH Pest Management | Abingdon, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02244 |
| Rice Rover Surveying & Engineering | Crownsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02217 |
| Richard Clark | Sutersville, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02414 |
| Richard Contractor LLC | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01953 |
| Richard Lynch & Sons LLC | Snow Hill, MD | — | Inspector (Property Transfer) | 00623 |
| Richard Nicholson Contractor | Millington, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00539 |
| Richardson Engineering LLC | Timonium, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01404 |
| Rick Birney, Inc | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00813 |
| RMS Services Corp. | Nanjemoy, MD | — | 00948 | |
| RMS Services/Scotty Excavating | Nanjemoy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02163 |
| Robert B Excavating | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00566 |
| Robert F. Beall & Sons, Inc. | Millersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00129 |
| Robert T Miller & Sons inc | Airville, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02154 |
| Robert T. Miller & Son, Inc. | Airville, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01284 |
| Robinson's Sewage Disposal | Frankford, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01669 |
| Rocco Enterprises LLC | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00436 |
| Rock Excavating and General Services | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 02243 |
| Rodgers Consulting | Germantown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02327 |
| Roelkey's Septic service LLC | Knoxville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00226 |
| Roger Reed | Kennedyville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01947 |
| Rohrbaugh Septic Service LLC | Emmitsburg, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00353 |
| Ron D Posey and Sons | Mardela Springs, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01034 |
| Ronald W. Johnson Associates, Inc. | 4Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01627 |
| Ross Excavating & Septic LLC | Hanover, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00696 |
| Roto Rooter Johnson Sewer & Drain | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00775 |
| Rouz Design Sutido LLC | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02113 |
| Roy A Williams Construction, LLC | Loveville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01010 |
| Roy Preston | Jarrettsville, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00841 |
| RTF Associates, Inc | Westminster, MD | — | Inspector (Property Transfer) | 00678 |
| RTFS Excavating, LLC | Mt. Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01751 |
| Rummel, Klepper & Kahl LLP | Keyser, WV | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00790 |
| Rush Excavating Inc | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02187 |
| Rush Services Inc | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02306 |
| RW Excavating | Hancock, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01089 |
| S & M Unlimited, Inc. | Still Pond, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00610 |
| S & S Contractor Services, LLC | Belair, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00177 |
| S. R. Smith Contruction, LLC | Owings, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01709 |
| S.A. Bogan's Plumbing, Inc. | Abingdon, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01297 |
| S&S Property Maintenance | Henderson, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 02169 |
| Safe Harbor Sanitation Inc | Grasonville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00205 |
| Saia Plumbing & Heating Co. | Olney, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01474 |
| Sam's Excavating LLC | Smithsburg, MD | — | 00041 | |
| Sample Excavating Co., Inc | Glen Arm, MD | — | Inspector (Property Transfer)Installer (At-Grade) | 00999 |
| Sams Creek Construction | New Windsor, MD | — | Inspector (BAT O&M)Installer (At-Grade) | 00057 |
| Samuel Burk | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01292 |
| Sandy Excavating, Inc. | LaPlata, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 01228 |
| Sandy Ridge Construction LLC | Girdletree, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 01083 |
| Sassafras Farm, LLC | Huntingtown, MD | — | Installer (At-Grade)Installer (Sand Mound) | 00791 |
| Savage Home Inspections | McHenry, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01686 |
| Scaggs Homes, Inc. DBA Scaggs Site | Owings, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01689 |
| Scandina Plumbing & Heating Inc | Millersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00608 |
| Scardina Plumbing & Heating Inc | Millersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00459 |
| Schummer Inc. | Mayo, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01969 |
| Schwallenbergs Permit Services Inc | Edgewater, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02377 |
| SDG Construction | Chesapeake Beach, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02290 |
| SDH, Inc | Severn, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01664 |
| Seascapes Landscaping & More | Berlin, MD | — | Inspector (Property Transfer) | 01560 |
| SEH Excavating INC | Finksburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02064 |
| Selby Family Plumbing | Snow Hill, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 02372 |
| Seniors Fix | Cumberland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01776 |
| Sens Service Inc | Berlin, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02439 |
| Septic Masters | Marydel, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02229 |
| Septic Masters LLC | Wyoming, DE | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT) | 02381 |
| Septic Solutions LLC | Leonardtown, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 01091 |
| Sera Engineered | Washington, DC | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02182 |
| Sertec LLC | Alexandria, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01938 |
| SES Mid Atlantic, LLC | Manassas, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02530 |
| Shahan Enterprises Inc. | Whiteford, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01337 |
| Shelton Plumbing & Heating, Inc | Union Bridge, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01455 |
| Shilling Septic Services, Inc. | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02461 |
| Shore Quality Contracting | Church Hill, MD | — | Inspector (Property Transfer) | 00258 |
| Shoreline Excavating, Inc. | Bel Air, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 00609 |
| Shorlock Home Inspections, LLC | Berlin, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00075 |
| Sill Engineering Group, LLC | Woodbine, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01704 |
| Simons Backhoe Service | Emmitsburg, MD | — | Inspector (Property Transfer) | 00272 |
| Simple Septic | Chevy Chase, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01939 |
| Site Design Inc | Upper Marlboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01015 |
| Site Services, LLC | Bel Air, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02535 |
| Site solutions, llc | Mount Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02325 |
| Site Work Solutions LLC | Bivalve, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01175 |
| Skip Lucas Construction | Abingdon, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02425 |
| Skyline Excavating & Tree Service LLC | Friendsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01687 |
| Skyline Excavating and Tree service | Friendsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01865 |
| Sloan Excavating | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01361 |
| Sloan Septic & Pumping | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01191 |
| Smart Home Inspects | Gaithersburg, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00008 |
| Smith & Smith Inc. | Darlington, MD | — | Installer (At-Grade)Installer (Sand Mound) | 00056 |
| Smith Environmental, LLC | Berlin, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02514 |
| Smith's Septic Service, Inc. | Snow Hill, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00849 |
| Smoyer Construction | Upper Marlboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01713 |
| So MD Concrete LLC | Hughesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01509 |
| Solid Specs Home Inspections | Bishopville, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01477 |
| Solitude Ventures, LLC. | Newcomb, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01295 |
| Soltesz | Waldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01499 |
| SOMD Septic | Mechanicsville, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 01287 |
| Sonny Septic Service | Marbury, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00350 |
| Sons Septic LLC | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01880 |
| South Carroll Backhoe | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00786 |
| Southern Drywell, Inc | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00330 |
| Southern Maryland Development LLC | Owings, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01317 |
| Southern Maryland pumping | King George, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02213 |
| Southern Maryland Septic & S | Callaway, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01672 |
| Southern Shores Septic | Dunkirk, MD | — | 01991 | |
| Southern Shores Septic LLC | Owings, MD | — | Installer (At-Grade)Installer (BAT) | 01303 |
| Special Events Comfort Station LLC | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02282 |
| Spek Home Inspections, LLC | Prince Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00099 |
| Spence Logging Inc | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00794 |
| SPG Architecture | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02379 |
| Spiker Bros. Inc | McHenry, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02374 |
| SR Septic LLC | Culpeper, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 02549 |
| SRG Construction LLC | White Hall, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00741 |
| SS&R Mechanical Inc | Glen Burnie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02055 |
| SST Express LLC | Harwood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01198 |
| St.Michaels Ventures LLC | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00263 |
| Stafford General Contractors LLC | Preston, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01152 |
| Staley's Onsite Services | Thurmont, MD | — | Installer (BAT) | 00548 |
| Stanton Onsite Services LLC DBA SOS | Sykesville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00912 |
| Star Septic Service LLC | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01817 |
| State Wide Septic Tank Service | Davidsonville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01565 |
| State Wide Septic Tank Service, Inc. | Davidsonville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00142 |
| Staton Heating, cooling, & Plumbing | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01714 |
| Staton Onsite Services DBA SOS Potty | Woodbine, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02134 |
| Steele's Excavating | Farm Grove, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00549 |
| Stein Brothers Construction | Grantsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01087 |
| Steve Roberson's Plumbing, Inc. | Queenstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01811 |
| Steven Churchwell | Clarksville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01498 |
| Stewart Smith Studios | Mitchellville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02126 |
| Stillwater Construction Company Inc. | Bel Air, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01218 |
| Stillwater Septic | Upper Marlboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01050 |
| Stilwell Plumbing Inc | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01853 |
| Stinchcomb Land Improvements, Inc. | Tilghman, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01515 |
| STL group | Denton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01462 |
| Storch Grounds Maintenance LLC | Swanton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02386 |
| Storm Utilities LLC | Pasadena, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00273 |
| Stormwater Facilities, Inc | Millersville, MD | — | Inspector (BAT O&M) | 01695 |
| Stotelmyer Plumbing | Smithsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00950 |
| Stowe Landscaping & Excavation Inc. | Rising Sun, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00550 |
| Stoy's Flooring & Construction | Boonsboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01719 |
| Streamlined Excavating LLC | Greencastle, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02308 |
| Stuart Contractors, Llc | Stevensville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01510 |
| Suburban Contracting Co., Inc. | Kingsville, MD | — | Installer (At-Grade)Installer (Sand Mound) | 00085 |
| Sullivan Septic Service | Ridgely, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00615 |
| Sully & sons Inc | Friendship, MD | — | Inspector (BAT O&M) | 00701 |
| Sunrise Septic LLC | Harwood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02203 |
| Superior Septic Services, LLC | White Hall, MD | — | 00147 | |
| Superior Tank Inc | Waldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02076 |
| Sweeney Buikders INC | Westminster, NJ | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00616 |
| Sweet Air Plumbing & Drain Cleaning I | Glen Arm, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00624 |
| Swords Inc dba Roto Rooter | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 02316 |
| T & T Sweeping | Clements, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02341 |
| T & T Sweeping Port-o-let Service | Clements, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01932 |
| T.C. , Inc. | Abingdon, MD | — | Inspector (BAT O&M)Installer (Sand Mound) | 00204 |
| T.D. Brown Hauling Excavating | Lusby, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00298 |
| T.E. Crummitt, Jr. Septic | Thurmont, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00649 |
| T.J. Smith Trucking & Excavating, Inc. | New Oxford, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01708 |
| T&C Contractors | Goldsboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02462 |
| T&C Excavation, Inc | Kennedyville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00153 |
| T&T Sweeping Port-O-Let Service Inc. | Clements, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02561 |
| T+M Builders, Inc | Monrovia, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01745 |
| Take Me Home Inspections | Port Deposit, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01725 |
| Talbot Land Management | Easton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01090 |
| Tana Plumbing & Heating LLC | Williamsport, MD | — | Inspector (BAT O&M) | 00069 |
| Tasker Excavating LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00796 |
| Taylor Precision Excavating LLC | Street, MD | — | Inspector (Property Transfer)Installer (At-Grade) | 00283 |
| TC Plumbing LLC | Sykesville, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02331 |
| Tech Contracting Co., Inc | Baltimore, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01048 |
| Teets Engineering LLC | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01111 |
| Temp Air Company | Owings Mills, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01803 |
| Tennyson Enterprises, LLC | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01852 |
| Terra Rubra Construction | Taneytown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 01070 |
| Terra Solutions Engineering LLC | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00688 |
| Terrain | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01993 |
| Terrain | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02348 |
| Terrascape Services LLC | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02536 |
| Teter Landscaping Inc | Flintstone, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00951 |
| The Drainage Solution Company LLC | Elm City, NC | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00821 |
| The Dymond Group LLC | Union Bridge, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01579 |
| The Good Sheperd Septic service Inc/B | Joppa, MD | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00335 |
| The Good Shepherd septic svc, Bobby' | Joppa, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01322 |
| The Good Shepherd septic svc, Bobby' | White Marsh, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02074 |
| The good shepherd septic svc, Bobby's | Joppa, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01323 |
| The Hoster Group Inc | Eden, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00751 |
| The Julian Company DBA JCI Environm | Upper Marlboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00617 |
| The Julian Company DBA JCI Environm | leWaldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01380 |
| The Kingsmen Agency | Chambersburg, PA | — | Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02396 |
| Thomas & Son Farms | Boonsboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00704 |
| Thornton Company LLC | Eden, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01041 |
| Three Notch Construction, LLC | California, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01403 |
| Tide Water Septic Service, LLC | Stevensville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01561 |
| Tim the Plumber, Inc. | Church Hill, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00369 |
| Timmons Group | Ellicott City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02518 |
| Timothy Kuhn, Sr | Kingsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 02373 |
| Todd C. Harne Construction & Excavat | Myersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00965 |
| Todd's Excavating | Jarrettsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00937 |
| Tolley Enterprises, Inc. | Monrovia, MD | — | Inspector (BAT O&M) | 00495 |
| Tolley Enterprises, Inc. | Boonsboro, MD | — | Installer (BAT) | 00496 |
| Tom Ashton Onsite Sewage Disposal | Chincoteague, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00095 |
| Tom Cossentino, Jr. Septic | Upperco, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01566 |
| Tomco Inc | Manchester, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00858 |
| Top Dawg Inspections | Gettysburg, PA | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01472 |
| Towers Concrete Products, Inc. | Denton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02057 |
| Town & Country Construction, LLC | Columbia, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02394 |
| Town of Emmitsburg | Emmitsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01558 |
| Town of Indian Head | Indian Head, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01952 |
| Trashy Diva Dumpsters | Prince Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00262 |
| Tri State Services LLC / American Outb | Fruitland, MD | — | 01838 | |
| Tri-County Pump Service Inc | Boonsboro, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00559 |
| Triad Engineering, Inc. | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00930 |
| Tricon Construction | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02226 |
| Tristate Home Services | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01882 |
| Truck N Van & Car Accessories | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 01424 |
| Turd Burglar, LLC | Rising Sun, MD | — | 02054 | |
| Two-Tac LLC DBA Ameri-Cans | Manassas Park, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02011 |
| Tyson Brice Landscaping | Chestertown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00098 |
| Ultimate Septic & Construction | Glen Burnie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00675 |
| United Rentals (North America), Inc.; D | Middleton, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02030 |
| United Rentals (North America), Inc.; D | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02046 |
| United Rentals (North America), Inc.; D | Hyattsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02501 |
| United Rentals (North America), Inc.; D | Glenig, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02503 |
| United Rentals, DBA: Reliable Onsite S | Gaithersburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02277 |
| United Site Services | Glen Bernie, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02052 |
| United Site Services, Inc | Capitol Heights, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01926 |
| Upper Bay Marine service | Chesapeake City, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02440 |
| USA Potty, LLC | Chevy Chase, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02109 |
| Utility Locating Service, Inc. | Brooksville, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01600 |
| Utkewicz Land Mgmt LLC | Centerville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01465 |
| Valentine Excavating & Construction, In | Hagerstown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 01242 |
| Valley Road Enterprises LLC | Catonsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01071 |
| Valley View Excavating, LLC | Frostburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00440 |
| Vanderhoef construction | kirkwood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00275 |
| VANMAR Associates Inc | Mount Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01004 |
| VanMar Associates, Inc | Mt. Airy, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01007 |
| Vann Enterprises, LLC | Conowingo, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 02262 |
| Vasquez Landscaping Inc | Marydel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00366 |
| Venus Consultants LLC | Clarksville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02313 |
| VIKA Maryland LLC | Germantown, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02162 |
| Vincent Greene Architects | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01405 |
| Vogel engineering & Timmons Group | Woodstock, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00707 |
| W. L. Meekins, Inc. | Forestville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01406 |
| W. Wedmore Plumbing Co | Belcamp, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02066 |
| W.C. Logan & Sons, Inc. | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01643 |
| W.C. Rhoten Excavating INC | Hampstead, MD | — | Inspector (Property Transfer) | 00269 |
| W.F. Downs Plumbing LLC | Clements, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02085 |
| W.J House P&H | Kingsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00261 |
| Wagner'S Construction Llc | Frederick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02555 |
| Wally's Excavating | Hollywood, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01518 |
| Walsh Excavating LLC | Oxford, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01188 |
| Walter Development, Inc. | La Plata, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00441 |
| Walter Lee Bussard LLC | Myersville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00642 |
| Walters Environmental Services Inc. | Grantville, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02449 |
| Walters Services Inc. | Grantville, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01223 |
| Wandless Sewer & Drain Cleaning | Flintstone, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02184 |
| Ward Plumbing | Marydel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00603 |
| Ward Plumbing Inc | Marydel, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 02255 |
| Washington Boyz Construction LLC | Nanjemoy, MD | — | Inspector (BAT O&M) | 00073 |
| Water services Inc | Waldorf, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02259 |
| Wayne McCusker | Cumberland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT)Installer (Sand Mound) | 01145 |
| Wayne Rochkind Dba Ditch Pro | White Marsh, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02562 |
| Wayne's Drains | Avenue, MD | — | 00832 | |
| Wayne's Drains & Septic | Avenue, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01193 |
| Wayne's Drains & Septic Service LLC | Avenue, MD | — | 01471 | |
| Wenger Services LLC | Littlestown, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02460 |
| Western Maryland Septic | Oakland, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00395 |
| Wheatley Bros. | Cambridge, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01144 |
| White Oak Construction and Design | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02367 |
| Whitman, Requardt & Associates, LLP | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01801 |
| Wicho & Sons, LLC. | Elkton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01279 |
| Widgeon Properties LLC | Showell, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02287 |
| Wiles Mensch Corporation-DC | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02352 |
| Wilkerson & Associates | Dunkirk, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00634 |
| Wilkerson and Associates | Dunkirk, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00332 |
| Wilkerson Builders, Inc. | Newburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00708 |
| Wilkerson Construction, Inc. | Newburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT) | 00709 |
| Wilkins Noble LLC | Princess Anne, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00690 |
| William (Matt) Haines | — | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02241 |
| William Bruck | Chambersburg, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00640 |
| William Derickson V | Warwick, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02406 |
| William L. Pumphrey Plumbing & Heati | Baltimore, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02234 |
| William M Moore llc/ Moores portables | Belle Haven, VA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02458 |
| William Ressler | Pittsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 01232 |
| William Suite Excavating, Inc. | Mechanicsville, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 01721 |
| Williams Plumbing LLC | Emmitsburg, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01237 |
| Willis V Fowler Excavating | Dunkirk, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00964 |
| Wind River Environmental | Crofton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00811 |
| Wind River Environmental | Salunga, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02000 |
| Wind River Environmental LLC | Crofton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02174 |
| Winn Contracting LLC | Linthicum Heights, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 02376 |
| Winner Development | Swanton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01884 |
| WL Gary Company Inc | Washington, DC | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02322 |
| Wm Gunter & Sons, Inc. | Rising Sun, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00392 |
| Wm Gunter& Son Inc | Rising Sun, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00393 |
| WM P McGovern Inc | West Chester, PA | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01789 |
| Wood Backhoe Service LLC | Deale, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00714 |
| WRF & Sons Plumbing & Heating Inc | Mt. Airy, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (Sand Mound) | 00467 |
| WSC Plumbing LLC | Street, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 01046 |
| WTC Contractors Inc | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer) | 00723 |
| WTC III Plumbing & Heating INC | Woodbine, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00650 |
| Wye Oak Construction LLC | Annapolis, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02303 |
| Xpert Excavating | Bridgeville, DE | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00278 |
| Yates Contracting Inc | Port Tobacco, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00081 |
| Yoder's Excavation LLC | Millington, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (Sand Mound) | 02299 |
| Yoder's Excavations LLC | Millington, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (Sand Mound) | 00977 |
| Young Excavating LLC | Keymar, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 00607 |
| Young Septic Services | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00638 |
| Youngs Lanns & Landscape | Thurmont, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 00923 |
| Zeb's Lawn and Land Services, LLC | Worton, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade) | 02424 |
| Zepp Plumbing and Heating | Clarksville, MD | — | Inspector (BAT O&M)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 00026 |
| Zepp Trucking LLC | Westminster, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (BAT) | 02472 |
| Znj Llc | Rising Sun MD, MD | — | Inspector (BAT O&M)Inspector (Property Transfer)Installer (At-Grade)Installer (BAT)Installer (Sand Mound) | 02427 |
Most directories only tell you who to call. These are the cases where the honest answer is that you may not need this service at all, and the mistakes that cost people the most money.
Typical septic pumping pricing, with sources: what this costs in MD →
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