| Company | Location | Certifications | License # |
|---|---|---|---|
| Adam Porter Craig | Sanford, NC | Installer (Level II) | 14581 |
| Bullard Septic Service | Sanford, NC | Installer (Level IV)Inspector | 2537 |
| Bullard Septic Service Inc | Sanford, NC | Installer (Level IV)Inspector | 11410 |
| Charles A Williams Backhoe | Sanford, NC | Installer (Level IV)Inspector | 3630 |
| Clean Flow Septic Solutions | Sanford, NC | Installer (Level II) | 15191 |
| Compendium Contracting Llc | Sanford, NC | Installer (Level IV)Inspector | 3953 |
| Cox Septic And Grading Inc | Broadway, NC | Installer (Level IV)Inspector | 5476 |
| Griffin Site Works Llc | Sanford, NC | Installer (Level II) | 15009 |
| Gunter And Sons Grading | Sanford, NC | Installer (Level II) | 15010 |
| Harvey Glenn Lee Iii | Sanford, NC | Installer (Level IV) | 11430 |
| Kyle Laine Townsend | Sanford, NC | Installer (Level II) | 14722 |
| Maples Septic Tank Service Inc | Sanford, NC | Installer (Level IV)Inspector | 2475 |
| Pipeworx Plumbing Inc | Sanford, NC | Installer (Level IV)Inspector | 11162 |
| Rathco Construction Inc | Sanford, NC | Installer (Level II) | 11049 |
| Sandhills Contractors Inc | Sanford, NC | Installer (Level II) | 6942 |
| Sloan Thomas Griffin | Sanford, NC | Installer (Level IV)Inspector | 5678 |
| Stewart Septic Service Llc | Sanford, NC | Installer (Level II) | 9570 |
| Triangle Grease & Septic Service Llc | Sanford, NC | Installer (Level II)Inspector | 6051 |
18 companies in the NCOWCICB certified onsite wastewater contractor & inspector lists are based in Lee County as of 2026-07-23. Companies based elsewhere in North Carolina also commonly serve the county.
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