| Company | Location | Certifications | License # |
|---|---|---|---|
| Adam'S Landworx Llc | Unionville, NC | Installer (Level II) | 14214 |
| Alan Clapp Lss | Hillsborough, NC | Designer (Soil Evaluator) | 10017E |
| Bingham Woods | Chapel Hill, NC | Installer (Level II) | 4511 |
| Bivins Tractor Inc | Hillsborough, NC | Installer (Level IV) | 1033 |
| Cagle'S Corner Grading Hauling & Septic | Efland, NC | Installer (Level II) | 1936 |
| Carlos Martinez Carpinteyro | Chapel Hill, NC | Installer (Level II) | 11983 |
| Central Carolina Septic Tank Serv | Hillsborough, NC | Installer (Level IV) | 1219 |
| Clean Septic Tank Service | Hillsborough, NC | Installer (Level IV)Inspector | 1216 |
| Clear Flow Septic Llc | Carrboro, NC | Installer (Level II) | 14308 |
| Daaf | Chapel Hill, NC | Installer (Level II) | 11739 |
| Double Deuce Septic Service Llc | Rougemont, NC | Installer (Level IV)Inspector | 9748 |
| Freeland Construction Inc | Rougemont, NC | Installer (Level II) | 4411 |
| Handy Mat Llc | Mebane, NC | Installer (Level IV) | 7913 |
| Ivey'S Septic Tank Service Inc | Efland, NC | Installer (Level IV)Inspector | 2720 |
| J C Johnson Septic Services Inc | Efland, NC | Installer (Level IV)Inspector | 4742 |
| Joel Lloyd Septic Service Llc | Chapel Hill, NC | Installer (Level IV)Inspector | 1960 |
| Kirby Septic Pumping | Mebane, NC | Installer (Level II)Inspector | 5840 |
| Krahstek Llc | Hillsborough, NC | Installer (Level II) | 14904 |
| L M Walker And Sons Grading | Hillsborough, NC | Installer (Level II) | 3298 |
| L M Walker Grading & Construction Llc | Hillsborough, NC | Installer (Level II) | 15261 |
| Mcbroom Septic | Hillsborough, NC | Installer (Level II) | 6243 |
| Mcfarland Septic | Durham, NC | Installer (Level IV) | 11608 |
| Mcfarland Septic Llc | Durham, NC | Installer (Level IV)Inspector | 2742 |
| Mec Environmental Construction Inc | Chapel Hill, NC | Installer (Level IV) | 9459 |
| Redmon Handyman Services | Chapel Hill, NC | Installer (Level II) | 11625 |
| Robert Deramus Bray | Hillsborough, NC | Installer (Level II) | 11263 |
| Ryan Coupe | Hillsborough, NC | Installer (Level II) | 9910 |
| Sparrow Point Llc | Chapel Hill, NC | Installer (Level II)Inspector | 4432 |
| Sparrow Point Llc | Hillsborough, NC | Inspector | 6214I |
| The Water Specialist | Hillsborough, NC | Inspector | 3747I |
| The Water Specialist Inc | Hillsborough, NC | Installer (Level IV)Inspector | 7030 |
| Wasteaway Site Services | Mebane, NC | Installer (Level II) | 15119 |
| Welch'S Septic & Portables | Hillsborough, NC | Installer (Level II) | 6241 |
| Wood Soil Consultants Pllc | Hillsborough, NC | Designer (Soil Evaluator) | 10025E |
34 companies in the NCOWCICB certified onsite wastewater contractor & inspector lists are based in Orange County as of 2026-07-23. Companies based elsewhere in North Carolina also commonly serve the county.
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