| Company | Location | Certifications | License # |
|---|---|---|---|
| Advantage Inspections | Rocky Mount, NC | Inspector | 9946I |
| Aqwa | Wilson, NC | Installer (Level IV) | 7240 |
| Braxton Britt Plumbing | Wilson, NC | Installer (Level II) | 9886 |
| Brother'S Septic Tank Llc | Wilson, NC | Installer (Level II) | 11324 |
| Cariveau Site Solutions | Lucama, NC | Installer (Level II) | 14786 |
| Creech'S Plumbing Inc | Wilson, NC | Installer (Level IV)Inspector | 7303 |
| Creech'S Plumbing Inc | Wilson, NC | Installer (Level IV)Inspector | 5187 |
| Cw Projects | Sims, NC | Installer (Level II) | 9506 |
| Ethan Grantham | Henderson, NC | Installer (Level II) | 15314 |
| M & R Plumbing Contractor Llc | Fremont, NC | Installer (Level II) | 15158 |
| North State Septic | Wilson, NC | Installer (Level II) | 11762 |
| Olivers Septic & Excavation | La Grange, NC | Installer (Level II) | 9615 |
| Otellios Septic And Sitework | Wilson, NC | Installer (Level II) | 15249 |
| Parris Septic & Grading Llc | Wilson, NC | Installer (Level II) | 9173 |
| Roberson'S Plumbing And Septic Llc | Elm City, NC | Installer (Level IV)Inspector | 6367 |
| Thomas W Bardin | Wilson, NC | Installer (Level II) | 9878 |
| Travis Creech Plumbing & Septic | Kenly, NC | Installer (Level IV)Inspector | 5045 |
| Walston Mechanical Septic Cleaning | Wilson, NC | Installer (Level II)Inspector | 6511 |
| Wells Plumbing | Wilson, NC | Installer (Level II) | 14947 |
19 companies in the NCOWCICB certified onsite wastewater contractor & inspector lists are based in Wilson County as of 2026-07-23. Companies based elsewhere in North Carolina also commonly serve the county.
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