Utah certifies the professionals who design, inspect, evaluate, and maintain onsite wastewater (septic) systems through the Department of Environmental Quality. This page lists them from the official state certified-professionals registry.
72 certified companies
36 certified companies
22 certified companies
21 certified companies
14 certified companies
14 certified companies
12 certified companies
12 certified companies
11 certified companies
10 certified companies
9 certified companies
5 certified companies
5 certified companies
4 certified companies
4 certified companies
4 certified companies
3 certified companies
1 certified company
1 certified company
1 certified company
Showing the first 120 of 486 certified companies (A–Z). Browse every Utah company by name, or by county ↑:
A · B · C · D · E · F · G · H · I · J · K · L · M · N · O · P · Q · R · S · T · U · V · W · Z · 0-9
| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| 123 Digg, LLC | Price, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03801-OSP |
| 2G Construction | Duchesne, UT | Duchesne | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03571-OSP |
| 2G Construction LLP | Duchesne, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04554-OSP |
| 2M Contract Dev., LLC | Rexburg, UT | Out of State | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 02475-OSP |
| 801 Excavation LLC | West Haven, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 02745-OSP |
| A Hole Perc Testing | Provo, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00476-OSP |
| A&D Jensen Contractors | Richfield, UT | Sevier | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03631-OSP |
| Aaron Hall | Parowan, UT | Iron | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04559-OSP |
| Aaron Holland | Moab, UT | Grand | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04567-OSP |
| Abigail Roberts | Fruitland, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00529-OSP |
| Action Sanitation | Kanab, UT | Kane | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03081-OSP |
| AEMT Septic | Joseph, UT | Sevier | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03031-OSP |
| Agec | St. George, UT | Washington | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 02735-OSP |
| Agec | St. George, UT | — | Onsite Wastewater Professional (Level 1) | 04435-OSP |
| AGEC Inc. | St. George, UT | — | Onsite Wastewater Professional (Level 1) | 04527-OSP |
| Aja Martin | Coalville, UT | Summit | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03956-OSP |
| AK Septic LLC | Logan, UT | Cache | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03588-OSP |
| Allen Construction and Excavation | Wallisburg, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00267-OSP |
| Alternative Onsite Solutions | Heber City, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00534-OSP |
| Amcast, LLC. | Coalville, UT | — | Onsite Wastewater Professional (Level 1) | 02615-OSP |
| Amelia Strand | Cedar City, UT | Washington | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03661-OSP |
| American Legacy Construction | Cottonwood Heights, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03671-OSP |
| Anderson Engineering Company Inc. | Saratoga Springs, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02996-OSP |
| Anderson Engineering Company, Inc. | Saratoga Springs, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04028-OSP |
| Andrew Monroy | Fredonia, UT | Out of State | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04152-OSP |
| Andrew Pompeo | Salt Lake City, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04552-OSP |
| Apex Design Group | Wellsville, UT | Cache | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02625-OSP |
| Apex Design Group | Wellsville, UT | Cache | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03266-OSP |
| Applied Geotech | St. George, UT | — | Onsite Wastewater Professional (Level 1) | 04365-OSP |
| Applied Geotechnical | Hurricane, UT | — | Onsite Wastewater Professional (Level 1) | 04442-OSP |
| Applied Geotechnical Engineering Consultant | St. George, UT | Washington | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04539-OSP |
| Applied Geotechnical Engineering Consultants | St. George, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00173-OSP |
| Applied Geotechnical Engineering Consultants | St. George, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04180-OSP |
| Applied Geotechnical Engineering Consultants, Inc. | Sandy, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00214-OSP |
| Apres Build | Park City, UT | Summit | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04255-OSP |
| Aramark | Mormon Lake, UT | — | Onsite Wastewater Professional (Level 1) | 04574-OSP |
| Arnold Person | West Jordan, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04637-OSP |
| Ash Creek Special Service District | Hurricane, UT | Washington | Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04669-OSP |
| Ash Creek SSD | Hurricane, UT | Washington | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03201-OSP |
| Ask & Partners | Payson, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04684-OSP |
| Aspen Custom Hornes LLC | Heber City, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03051-OSP |
| Atkinson's Affordable Septic Design | Lehi, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03211-OSP |
| B-Diggin Backhoe Service | Talmage, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00525-OSP |
| Barber Excavation | Moab, UT | Grand | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04693-OSP |
| Basin Consulting & Services | Vernal, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00448-OSP |
| BC Sorensen & Sons | Spanish Fork, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02268-OSP |
| Bear River Health Department | Logan, UT | Cache | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 02370-OSP |
| Bear River Health Department | North Logan, UT | Cache | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03011-OSP |
| Bear River Health Dept. | Logan, UT | Cache | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00038-OSP |
| Bear River Health Dept. | Logan, UT | Cache | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00073-OSP |
| Beehive Enterprises, Inc. | Panguitch, UT | Garfield | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00249-OSP |
| Bengineering Services | Woods Cross, UT | Kane | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04031-OSP |
| Benjamin Sessions | Peterson, UT | Morgan | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 3) | 04235-OSP |
| Best Friends Animal Society | Kanab, UT | Kane | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03928-OSP |
| Best Friends Animal Society | Kanab, UT | Kane | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03951-OSP |
| Bevan Monroe | Gunnison, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03336-OSP |
| Blaine Breinholt | Richfield, UT | Sevier | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00005-OSP |
| Blake Deveraux | Neola, UT | Duchesne | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04490-OSP |
| Bluebird Excavation LLC | Pleasant Grove, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04305-OSP |
| Bluegrass Excavation Inc. | Francis, UT | — | Onsite Wastewater Professional (Level 1) | 00598-OSP |
| Bluff Instinct Design LLC | Bluff, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04653-OSP |
| Bowen, Collins & Assoc. Inc. | Sandy, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02815-OSP |
| Bown Construction | Fayette, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00495-OSP |
| Bown Construction | Gunnison, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04592-OSP |
| Box Elder School District | Brigham City, UT | Box Elder | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02606-OSP |
| Brad Robinson | Scipio, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04160-OSP |
| Braden Chamberlain | Vernal, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04056-OSP |
| Bradley Johnson | La Verkin, UT | Washington | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04472-OSP |
| Bradley Leary | Rush Valley, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04375-OSP |
| Brazil Contracting LLC. | Salina, UT | Sevier | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03683-OSP |
| Brian Amos | West Valley, UT | — | Onsite Wastewater Professional (Level 2) | 02901-OSP |
| Brown Consulting Engineers | St. George, UT | Washington | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03701-OSP |
| Bruce Chesler | Escalante, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00158-OSP |
| Bruce Osojnak | Bryce, UT | Garfield | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00356-OSP |
| BTM Construction | Heber City, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00545-OSP |
| Bullet Construction | Nephi, UT | Juab | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00524-OSP |
| Bureau of Reclamation | Provo, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03656-OSP |
| Butler Excavation | Payson, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 02200-OSP |
| Butler Excavation | Payson, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02865-OSP |
| Cache County School District | Logan, UT | Cache | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02160-OSP |
| Cache County School District | Logan, UT | Cache | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02162-OSP |
| Canaan Peaks Engineering | Hildale, UT | Washington | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00351-OSP |
| Canyon Country Drilling LLC | Panguitch, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 02790-OSP |
| Canyon Engineering | Park City, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00422-OSP |
| Carling & Company | Fillmore, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00030-OSP |
| Cassandra Casper | Duchesne, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04062-OSP |
| CD Consulting Engineers, Inc. | Cedar City, UT | Iron | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03098-OSP |
| Cds, Llc | Kamas, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00433-OSP |
| CE Butters Construction | Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02291-OSP |
| Center Point Construction II, LLC | Morgan, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04130-OSP |
| Central Utah Health Department | Mount Pleasant, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02004-OSP |
| Central Utah Health Dept. | Richfield, UT | Sevier | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02670-OSP |
| Chance Roberts | Fruitland, UT | Duchesne | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03866-OSP |
| Charles Eddy General Contractor | Kanab, UT | Kane | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00563-OSP |
| Chet Earl | Fairview, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03626-OSP |
| Christensen Brothers Rock Products | Fairview, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00111-OSP |
| Civil Solutions Group | Payson, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04100-OSP |
| Clark Tractor Works | Liberty, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04354-OSP |
| Clayton Gross | Spanish Fork, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03476-OSP |
| Cliffside Engineering PLLC | Kanab, UT | Kane | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03481-OSP |
| CMT Technical Services | Riverton, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 00562-OSP |
| CMT Technical Services | West Valley City, UT | — | Onsite Wastewater Professional (Level 1) | 03876-OSP |
| CMT Technical Services | Ogden, UT | Weber | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04036-OSP |
| CMT Technical Services | Ogden, UT | — | Onsite Wastewater Professional (Level 1) | 04674-OSP |
| Cody Griffith | Mona, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03436-OSP |
| Contour Construction and Excav. Inc. | Ft. Duchesne, UT | Uintah | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 02102-OSP |
| Craig Jorgensen | North Ogden, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03056-OSP |
| CRS Mechanical Contractors Inc | Bluffdale, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03041-OSP |
| Crudbust LLC | North Logan, UT | Cache | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04657-OSP |
| CS Trailers and Welding LLC | Roosevelt, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 03601-OSP |
| Csm Llc | Sandy, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02365-OSP |
| Cutting Edge Water Well Drilling | Duchesne, UT | Duchesne | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03566-OSP |
| D & D Contracting | Salina, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02131-OSP |
| DAB Concrete | Heber, UT | — | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 00221-OSP |
| Dale Johnson | Hurricane, UT | Washington | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03046-OSP |
| Dannsco Llc | Wanship, UT | — | Onsite Wastewater Professional (Level 1) | 03161-OSP |
| David Heaton | Nephi, UT | Juab | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2) | 04262-OSP |
| David Morgan | Pintura, UT | Washington | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 04400-OSP |
| Davis County Health Dept. | Clearfield, UT | Davis | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 02766-OSP |
| Davis County Health Dept. | Clearfield, UT | Davis | Onsite Wastewater Professional (Level 1)Onsite Wastewater Professional (Level 2)Onsite Wastewater Professional (Level 3) | 03611-OSP |
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 UT →
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