| Company | Location | Certifications | License # |
|---|---|---|---|
| Abilez Construction Company | Mcloud, OK | Installer (Subsurface, Aerobic Spray) | 999 |
| Citizen Potawatomi Nation | Shawnee, OK | Installer (Subsurface, Lagoon, Aerobic Spray) | 347 |
| Docs Septic | Shawnee, OK | Septage Hauler | 39 |
| Firestorm | Shawnee, OK | Installer (Subsurface, Lagoon, Aerobic Spray) | 850 |
| Irwins Septic | Nicoma Park, OK | Installer (Subsurface, Aerobic Spray) | 1205 |
| Jims Portable Toilets & Septic Tank Service | Shawnee, OK | Septage Hauler | 75 |
| Johnson Construction | Choctaw, OK | Installer (Subsurface, Lagoon, Aerobic Spray) | 215 |
| Johnson Construction | Choctaw, OK | Septage Hauler | 306 |
| Klassic Tap LLC | Mcloud, OK | Septage Hauler | 705 |
| L-L Construction & Environmental LLC | Tecumseh, OK | Installer (Subsurface, Aerobic Spray) | 876 |
| Powells Construction | Tecumseh, OK | Installer (Subsurface, Aerobic Spray) | 1046 |
| Superior Excavation Solutions | Wellston, OK | Installer (Subsurface, Aerobic Spray) | 1129 |
| TGW Enterprises | Harrah, OK | Installer (Subsurface, Aerobic Spray) | 1154 |
13 companies in the Oklahoma DEQ certified septic installers and licensed septage pumpers/transporters are based in Pottawatomie County as of 2026-07-23. Companies based elsewhere in Oklahoma also commonly serve the county.
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