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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| A-1 Sewer Systems, LLC | Lake Charles, LA | — | Installer (Basic)Installer (Combination) | 30282 |
| A-1 Sewer Systems, LLC | Lake Charles, LA | — | Installer (Basic)Installer (Combination) | 32480 |
| A-1 Tank Service | Keithville, LA | — | Installer (Basic)Installer (Combination) | 31676 |
| A-Bear's Dirt Work | Houma, LA | — | Installer (Basic)Installer (Combination) | 31496 |
| A.P.E. Excavator Worx | Mansura, LA | — | Installer (Basic)Installer (Combination) | 40038 |
| A&B Environmental | Jennings, LA | — | Installer (Basic)Installer (Combination) | 31925 |
| A&E Contractors and Waste Management | Shreveport, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 32009 |
| A&J Dirtwork LLC | Marion, LA | — | Installer (Basic)Installer (Combination) | 31524 |
| A2Z Water Services LLC | Lake Charles, LA | — | Installer (Basic)Installer (Combination) | 32096 |
| ABC Septic LLC | Bastrop, LA | — | Installer (Basic)Installer (Combination) | 32360 |
| ABC Sewage and Pumping Services, LLC | Ponchatoula, LA | — | Installer (Basic)Installer (Combination) | 32340 |
| ABC Sewage and Pumping Services, LLC | Ponchatoula, LA | — | Installer (Basic)Installer (Combination) | 32342 |
| Acadian Environmental Service LLC | Slidell, LA | — | Installer (Basic)Installer (Combination) | 30301 |
| Achievers of Louisiana | West Monroe, LA | — | Installer (Basic)Installer (Combination) | 32309 |
| Acquired Wastewater | Denham Springs, LA | — | Installer (Basic)Installer (Combination) | 31079 |
| Aero Environmental | Slaughter, LA | — | Installer (Basic)Installer (Combination) | 32404 |
| AGH Plumbing LLC | Choudrant, LA | — | Installer (Basic)Installer (Combination) | 31712 |
| AKM Services LLC | Monroe, LA | — | Installer (Basic)Installer (Combination) | 40117 |
| Al's Sewer Septic and Backhoe Services | Breaux Bridge, LA | — | Installer (Basic)Installer (Combination) | 475 |
| All Phase Service Co. | West Monroe, LA | — | Installer (Basic)Installer (Combination) | 32283 |
| Allen Plumbing LLC | Baskin, LA | — | Installer (Basic)Installer (Combination) | 31701 |
| Allen's Water Service LLC | Batchelor, LA | — | Installer (Basic)Installer (Combination) | 30138 |
| AllTec Plumbing LLC | Ruston, LA | — | Installer (Basic)Installer (Combination) | 32043 |
| AllTec Plumbing LLC | Ruston, LA | — | Installer (Basic)Installer (Combination) | 32045 |
| AllTec Plumbing LLC | Ruston, LA | — | Installer (Basic) | 40115 |
| AM Solutions 247 LLC | Walker, LA | — | Installer (Basic)Installer (Combination) | 32174 |
| American Buckhoe & Construction LLC | Grosse Tete, LA | — | Installer (Basic)Installer (Combination) | 442 |
| American Septic Tank | Lafayette, LA | — | Installer (Maintenance) | 31244 |
| American Wastewater Systems, Inc. | Duson, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 31475 |
| American Wastewater Systems, Inc. | Duson, LA | — | Installer (Basic)Installer (Combination) | 32231 |
| Amy's Sewer Systems | Lake Charles, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 32124 |
| Amy's Sewer Systems | Lake Charles, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 40041 |
| Anderson Sewer Systems, LLC | Farmerville, LA | — | Installer (Basic)Installer (Combination) | 31920 |
| Andrew Williams Interiors LLC | New Orleans, LA | — | Installer (Basic)Installer (Combination) | 32166 |
| Anthony Guillory Contruction | Mamou, LA | — | Installer (Basic)Installer (Combination) | 31787 |
| Anywhere Plumbing Repair Inc. | Gretna, LA | — | Installer (Basic)Installer (Combination) | 324 |
| Archer Services LLC | Simsboro, LA | — | Installer (Basic)Installer (Combination) | 324436 |
| Armstrong Construction Plumbing & Repair | Mansfield, LA | — | Installer (Basic)Installer (Combination) | 609 |
| Artesian Services LLC | Covington, LA | — | Installer (Basic)Installer (Combination) | 197 |
| Aucoin Development Group | Donaldsonville, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 907 |
| Audie's Sewage Installations, LLC | New Iberia, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 30368 |
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