| Company | Location | Certifications | License # |
|---|---|---|---|
| Aaron Stepan | — | InstallerPumper | — |
| Andrew Lancaster | — | Pumper | — |
| Bart Foster | — | Installer | — |
| Billy Feltman | — | Installer | — |
| Bradley Walker | — | Installer | — |
| Brandon Shackelford | — | Installer | — |
| Brent Sanders | — | InstallerPumper | — |
| Brian Nix | — | Installer | — |
| Carl Brown | — | Installer | — |
| Curtis Kyser | — | InstallerPumper | — |
| David Grammer | — | InstallerPumper | — |
| Del Stewart | — | Installer | — |
| Donald Wade | — | Installer | — |
| Fred White Sr | — | InstallerPumper | — |
| Greg Boatner | — | InstallerPumper | — |
| Isaac Caffee | — | InstallerPumper | — |
| James Fields | — | Installer | — |
| Jason Waits | — | Installer | — |
| Joel Crawford | — | Pumper | — |
| Jonathan Grammer | — | Installer | — |
| Joseph Burroughs | — | Installer | — |
| Joseph James | — | Pumper | — |
| Justin Ethridge | — | Installer | — |
| Kavin Lowery | — | Installer | — |
| Kevin Kyser | — | Installer | — |
| Leallen Alexander | — | Installer | — |
| Lee Brasfield | — | InstallerPumper | — |
| Mickey Pierce | — | InstallerPumper | — |
| Patrick Stallworth | — | Pumper | — |
| Phillip Gurganus | — | Installer | — |
| Ronald Booth | — | Pumper | — |
| Ronald Foster | — | Installer | — |
| Steven Brewer | — | InstallerPumper | — |
| Steven Mitchell | — | Installer | — |
| Tanner Montgomery | — | Installer | — |
| Wesley Shackelford | — | Installer | — |
| Wesley Stepan | — | Installer | — |
| William Murphy | — | Pumper | — |
| William Snipes | — | Installer | — |
| William Stewart | — | Pumper | — |
| Woody Sartain | — | Installer | — |
41 companies in the Alabama Onsite Wastewater Board licensee roster are based in Tuscaloosa County as of 2026-07-23. Companies based elsewhere in Alabama also commonly serve the county.
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