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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| 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 |
A · B · C · D · E · F · G · H · I · J · K · L · M · N · O · P · Q · R · S · T · U · V · W · X · Y · Z · 0-9