| Company | Location | Certifications | License # |
|---|---|---|---|
| 3rd Gen Excavation and Construction LLC | Sperry, OK | Installer (Aerobic Spray) | 1187 |
| Baltimores Septic Service | Hominy, OK | Septage Hauler | 411 |
| Clark Excavating LLC | Sperry, OK | Installer (Aerobic Spray) | 1252 |
| Holdens Septic Services LLC | Pawhuska, OK | Septage Hauler | 580 |
| Mills Truck and Tractor Service Inc | Sand Springs, OK | Installer (Subsurface, Aerobic Spray) | 77 |
| Morrison Septic | Pawhuska, OK | Septage Hauler | 597 |
| Samuel Bain | Skiatook, OK | Installer (Subsurface, Lagoon, Aerobic Spray) | 925 |
7 companies in the Oklahoma DEQ certified septic installers and licensed septage pumpers/transporters are based in Osage County as of 2026-07-23. Companies based elsewhere in Oklahoma also commonly serve the county.
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