| Company | Location | Certifications | License # |
|---|---|---|---|
| Anthony Boyett | — | InstallerPumper | — |
| Arthur Smith | — | Installer | — |
| Berny Zellner | — | Installer | — |
| Calvin Rider Sr. | — | Installer | — |
| Christopher Dowhan | — | Pumper | — |
| Clarence Crook Iv | — | InstallerPumper | — |
| Daniel Fields | — | Installer | — |
| Daniel Valrie | — | Pumper | — |
| Donald Jacobs | — | Installer | — |
| Harry Hurst | — | Pumper | — |
| Heather Wirth | — | InstallerPumper | — |
| James Ellis | — | Installer | — |
| James Short | — | Installer | — |
| Jarred Richardson | — | Pumper | — |
| Jason Vesely | — | Installer | — |
| John Bolton | — | InstallerPumper | — |
| Johnny Asberry Jr | — | Pumper | — |
| Joseph Boyett | — | InstallerPumper | — |
| Joseph Bullinger Jr. | — | Installer | — |
| Joseph Bullinger Sr. | — | Installer | — |
| Justin Gibbons | — | Installer | — |
| Lauren Vesely | — | Installer | — |
| Lewis Taylor Jr. | — | Installer | — |
| Lynn Boyett | — | Pumper | — |
| Mark Carpenter | — | Installer | — |
| Mark Schoen | — | Pumper | — |
| Mickey Mustin | — | Installer | — |
| Nicholas Shiver | — | Installer | — |
| Patrick Gibbons | — | Pumper | — |
| Paul Sledge | — | Installer | — |
| Richard Barnett | — | Pumper | — |
| Richard Williams | — | InstallerPumper | — |
| Robert Slaughter | — | Installer | — |
| Ruffin Crook | — | Pumper | — |
| Scott Ammons | — | Installer | — |
| Steven Boyett | — | InstallerPumper | — |
| Teresa Carpenter | — | Installer | — |
| Terry Spradlin | — | Installer | — |
| Timothy Brooks | — | Installer | — |
| Todd Edmiston | — | Installer | — |
| Trammell Henry Sr. | — | InstallerPumper | — |
| Tyree Murdock | — | InstallerPumper | — |
42 companies in the Alabama Onsite Wastewater Board licensee roster are based in Baldwin County as of 2026-07-23. Companies based elsewhere in Alabama also commonly serve the county.
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