| Company | Location | Certifications | License # |
|---|---|---|---|
| Austin Whitfield | — | Pumper | — |
| Cade O'Malley | — | Installer | — |
| Chris O'Malley | — | Pumper | — |
| Christopher Melvin | — | Installer | — |
| Cort Mansell | — | Installer | — |
| Craig Smith | — | Pumper | — |
| David Whitfield | — | Pumper | — |
| Ethan Harris | — | Pumper | — |
| Evan Carter | — | Pumper | — |
| Grace Baker | — | Pumper | — |
| Hollis Clark | — | InstallerPumper | — |
| Jason Creasy | — | Pumper | — |
| Jimmy Crosswhite | — | Installer | — |
| Mark Harris | — | Pumper | — |
| Michael Smith | — | InstallerPumper | — |
| Phillip Duncan | — | Installer | — |
| Ronnie Stonecipher | — | Installer | — |
| Todd Shook | — | Installer | — |
| William Mansell | — | Installer | — |
19 companies in the Alabama Onsite Wastewater Board licensee roster are based in Colbert County as of 2026-07-23. Companies based elsewhere in Alabama also commonly serve the county.
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