| Company | Location | Certifications | License # |
|---|---|---|---|
| A To Z Septic Service Llc | Rocky Mount, NC | Installer (Level II) | 14623 |
| Alex'S Wastewater Services | Nashville, NC | Installer (Level II) | 11516 |
| Alexander Kyle Thompson | Fuquay Varina, NC | Inspector | 4941I |
| Bcs Contractors Llc | Spring Hope, NC | Installer (Level II) | 11687 |
| Bell'S Septic Tank Llc | Spring Hope, NC | Installer (Level II) | 9339 |
| Blackwater Solutions | Rocky Mount, NC | Installer (Level IV)Inspector | 4095 |
| Boswell & Son Septic Tank Service Inc | Rocky Mount, NC | Installer (Level IV)Inspector | 1254 |
| Braswell Septic | Nashville, NC | Installer (Level II) | 11028 |
| Carolina Grading And Excavation | Efland, NC | Installer (Level IV) | 9626 |
| Celco Inc Dba Roto Rooter Plumbers | Rocky Mount, NC | Installer (Level II) | 9866 |
| Charlie Clarence Creech Jr | Nashville, NC | Installer (Level II) | 15102 |
| Cooley Ventures Llc | Whitakers, NC | Installer (Level II) | 12039 |
| Denzel Walston | Rocky Mount, NC | Installer (Level II) | 14945 |
| Downhill Land & Septic | Wendell, NC | Installer (Level II) | 14078 |
| Justin Carter | Bailey, NC | Installer (Level II) | 11514 |
| Kenneth J Parker | Nashville, NC | Installer (Level II) | 11723 |
| Mason Pittman | Whitakers, NC | Installer (Level II) | 15382 |
| Montgomery Septic | Rocky Mount, NC | Installer (Level II) | 14291 |
| Morris Plumbing | Spring Hope, NC | Installer (Level II) | 15244 |
| Morris Plumbing | Spring Hope, NC | Installer (Level II) | 15245 |
| Prospray Solutions | Rocky Mount, NC | Installer (Level II) | 14600 |
| Raven Builders Llc | Spring Hope, NC | Installer (Level II) | 11731 |
| Reges Land & Septic Llc | Nashville, NC | Installer (Level II) | 9199 |
| Rj Dees Plumbing | Nashville, NC | Installer (Level II) | 9829 |
| Rolling T Farms Llc | Nashville, NC | Installer (Level II) | 5180 |
| Ronald Charles Davis | Nashville, NC | Installer (Level II) | 15104 |
| Southeastern Septic Llc | Middlesex, NC | Installer (Level IV) | 9528 |
| Southern Nash Septic Systems Llc | Bailey, NC | Installer (Level IV)Inspector | 6393 |
| Southern Nash Septic Systems Llc | Bailey, NC | Installer (Level IV)Inspector | 6392 |
| Warrens Land Development Llc | Rocky Mount, NC | Installer (Level II) | 14731 |
| You Name It Construction & Grading | Nashville, NC | Installer (Level II) | 14326 |
31 companies in the NCOWCICB certified onsite wastewater contractor & inspector lists are based in Nash County as of 2026-07-23. Companies based elsewhere in North Carolina also commonly serve the county.
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