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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| Baham's Portables | Eunice, LA | — | Installer (Basic)Installer (Combination) | 790 |
| Bar G Construction | Shreveport, LA | — | Installer (Basic)Installer (Combination) | 32476 |
| Bayou Black Treatment Plants | Houma, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 32364 |
| Bear's Contracting LLC | Elm Grove, LA | — | Installer (Basic) | 40082 |
| Black Hawk Septic Service | Bossier City, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 32379 |
| Black Water Environmental LLC | Shreveport, LA | — | Installer (Basic)Installer (Combination) | 31758 |
| Black's Pump & Waterwell Service Inc. | Abbeville, LA | — | Installer (Basic)Installer (Combination) | 30732 |
| Blake's Services Inc. | Olla, LA | — | Installer (Basic)Installer (Combination) | 32051 |
| Blue Service LLC | Winnsboro, LA | — | Installer (Basic)Installer (Combination) | 32170 |
| Bobby Greene Plumbing, Heating, and Cooling | Shreveport, LA | — | Installer (Basic)Installer (Combination) | 31710 |
| Bonnette & Sons | Alexandria, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 31491 |
| Boondock Services LLC | Springfield, LA | — | Installer (Basic)Installer (Combination) | 31909 |
| Booth Environmental Services, LLC | Lake Charles, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 31690 |
| Booth Environmental Services, LLC | Lake Charles, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 31760 |
| Booth Environmental Services, LLC | Lake Charles, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 31762 |
| Bordelon Septic Systems, Inc. | Stonewall, LA | — | Installer (Basic)Installer (Combination) | 32219 |
| BP Plumbing | Calhoun, LA | — | Installer (Basic)Installer (Combination) | 32350 |
| Breaux-Dad Septics | Gonzales, LA | — | Installer (Basic)Installer (Combination) | 32245 |
| Breaux's Trucking | Maurice, LA | — | Installer (Basic)Installer (Combination) | 30393 |
| Brent's Septic Tank | Franklinton, LA | — | Installer (Basic)Installer (Combination) | 30740 |
| Brewin Septic Tank LLC | Pearl River, LA | — | Installer (Basic)Installer (Combination) | 31786 |
| Brooks Plumbing & Septic | Abita Springs, LA | — | Installer (Basic)Installer (Combination) | 32146 |
| Brunson Construction | Benton, LA | — | Installer (Basic)Installer (Combination) | 889 |
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