| Company | Location | Certifications | License # |
|---|---|---|---|
| 3g Excavating Company | Franklin, NC | Installer (Level II) | 15373 |
| 3g Excavating Company | Franklin, NC | Installer (Level II) | 15374 |
| Andy Berry & Sons Inc | Franklin, NC | Installer (Level IV)Inspector | 3450 |
| Appalachian Land & Waterworks Inc | Weaverville, NC | Installer (Level II) | 5405 |
| B & B Concrete Prod | Franklin, NC | Installer (Level IV)Inspector | 1020 |
| B & B Concrete Products Inc | Franklin, NC | Installer (Level II) | 4931 |
| B & B Concrete Products Inc | Franklin, NC | Installer (Level II) | 4560 |
| B & B Maintenance | Franklin, NC | Installer (Level II) | 1409 |
| B & B Property Solutions | Franklin, NC | Installer (Level II) | 9238 |
| Bleckley Excavating | Franklin, NC | Installer (Level II) | 1361 |
| Brogden Excavating | Franklin, NC | Installer (Level II) | 9985 |
| Browning Dirt | Franklin, NC | Installer (Level II) | 13094 |
| Bryson Enterprises Ltd | Highlands, NC | Installer (Level II) | 2085 |
| Bryson Enterprises Ltd | Canton, NC | Installer (Level IV) | 9020 |
| Casey Levi Hodgin | Franklin, NC | Installer (Level II) | 11286 |
| Chad Mitchell Bilbrey | Otto, NC | Installer (Level II) | 14768 |
| Charles Grant | Topton, NC | Installer (Level II) | 9779 |
| Charley Greb Builder | Franklin, NC | Installer (Level II) | 11693 |
| Cochran Construction | Franklin, NC | Installer (Level II) | 1367 |
| Contreras Septic And Grading | Franklin, NC | Installer (Level II) | 11261 |
| Craig Andrew Sroka | Otto, NC | Installer (Level II) | 1413 |
| Cutshall Construction Inc | Marshall, NC | Installer (Level II) | 9794 |
| D & D Enterprises | Franklin, NC | Installer (Level II) | 1392 |
| Danny Chuck Bates | Franklin, NC | Installer (Level IV)Inspector | 1021 |
| Danny Chuck Bates | Franklin, NC | Installer (Level II) | 11281 |
| Darian'S Plumbing And Septic Llc | Franklin, NC | Installer (Level II) | 11154 |
| Dbs Contracting Llc | Franklin, NC | Installer (Level II) | 11272 |
| Del'S Property Development Inc | Sapphire, NC | Installer (Level II) | 9239 |
| Denny'S Backhoe Service | Franklin, NC | Installer (Level II) | 3472 |
| Earthworks & Construction Services Llc | Franklin, NC | Installer (Level II) | 14441 |
| Elijah Craven | Franklin, NC | Installer (Level II) | 14582 |
| Erik'S Grading & Septic | Franklin, NC | Installer (Level IV)Inspector | 6537 |
| Ezequiel Damian | Franklin, NC | Installer (Level II) | 14988 |
| Farmer Renovations | Franklin, NC | Installer (Level II) | 14815 |
| H & M Home Builders | Highlands, NC | Installer (Level II) | 6125 |
| H P Roberson Builders Llc | Otto, NC | Installer (Level II) | 11768 |
| Highlands Grading | Highlands, NC | Installer (Level II) | 2287 |
| Highlands Grading Company Llc | Otto, NC | Installer (Level II) | 6503 |
| Highlands Grading Company Llc | Otto, NC | Installer (Level IV) | 6502 |
| Highside Contractors | Franklin, NC | Installer (Level II) | 15293 |
| Hp Roberson Builders Llc | Otto, NC | Installer (Level II) | 11769 |
| J B Construction | Bryson City, NC | Installer (Level II) | 2590 |
| Jeff Parrish Septic Systems | Franklin, NC | Installer (Level IV) | 1463 |
| Jerry Stoodley | Franklin, NC | Installer (Level II) | 14923 |
| Johnny Webb | Franklin, NC | Installer (Level II) | 1423 |
| Johnson Excavating | Scaly Mtn, NC | Installer (Level II) | 2248 |
| Jones Construction And Grading | Franklin, NC | Installer (Level II) | 11280 |
| Joseph Alan Pocquette | Franklin, NC | Installer (Level II) | 11711 |
| Landrunner Enterprises | Franklin, NC | Installer (Level II) | 11805 |
| Lee Ervin Sitton | Franklin, NC | Installer (Level II) | 11725 |
| Macon Grading Co | Franklin, NC | Installer (Level II) | 9320 |
| Mark Bell | Franklin, NC | Installer (Level II) | 11550 |
| Mark Rogers Grading Co Llc | Highlands, NC | Installer (Level IV)Inspector | 6308 |
| Miller'S Plumbing Service, Llc | Highlands, NC | Installer (Level IV)Inspector | 6133 |
| Mintz Cove Septic | Hayesville, NC | Installer (Level IV) | 5819 |
| Moore Family Contracting Llc | Topton, NC | Installer (Level II) | 9224 |
| Mountain Garden Landscaping Llc | Highlands, NC | Installer (Level II) | 7337 |
| Mountain Movers Dirt Works Llc | Franklin, NC | Installer (Level II) | 11772 |
| Mountain Septic Service | Franklin, NC | Installer (Level IV)Inspector | 1408 |
| Mountain Soils Inc | Franklin, NC | Designer (Soil Evaluator) | 10002E |
| Noah Sitton | Franklin, NC | Installer (Level II) | 11721 |
| Perez Construction | Franklin, NC | Installer (Level II) | 1406 |
| Perez Construction | Franklin, NC | Installer (Level II) | 15040 |
| Phil Tallent Backhoe Service | Franklin, NC | Installer (Level II) | 1416 |
| Phillips Backhoe Service | Franklin, NC | Installer (Level IV)Inspector | 1464 |
| Primos Grading Llc | Franklin, NC | Installer (Level IV) | 9334 |
| R & G Septic And Grading | Franklin, NC | Installer (Level II) | 14273 |
| Rapid Rooter Plumbing Inc | Franklin, NC | Installer (Level II) | 8026 |
| Richard Phillips | Franklin, NC | Installer (Level II) | 8055 |
| Robert Thrumston | Franklin, NC | Installer (Level II) | 11995 |
| Sams Grading Inc | Highlands, NC | Installer (Level II) | 6479 |
| Scottie'S Trachoe Service | Franklin, NC | Installer (Level II) | 1415 |
| Sewer Solutions Inc | Franklin, NC | Installer (Level IV) | 1002 |
| Sewer Solutions Inc | Franklin, NC | Installer (Level IV) | 14267 |
| Steelhorse Excavation Llc | Franklin, NC | Installer (Level IV)Inspector | 5701 |
| Stephen Parcel | Highlands, NC | Installer (Level II) | 14679 |
| Steven Edward Smathers | Franklin, NC | Installer (Level II) | 11682 |
| T & T Contracting | Franklin, NC | Installer (Level II) | 1418 |
| T & T Contracting | Franklin, NC | Installer (Level II) | 1419 |
| Teague Contracting Inc | Franklin, NC | Installer (Level II) | 11659 |
| Thomas J Dupuis | Franklin, NC | Installer (Level II) | 15296 |
| Tim'S Hauling & Excavating | Franklin, NC | Installer (Level II) | 3525 |
| Todd Alan Marriott | Franklin, NC | Installer (Level II) | 4332 |
| Vans Electric Inc | Franklin, NC | Installer (Level IV)Inspector | 11597 |
| Vinson & Anderson Grading Inc | Franklin, NC | Installer (Level IV)Inspector | 1429 |
| Vinson Earthworks Llc | Highlands, NC | Installer (Level IV) | 9003 |
| Wilsons Grading | Highlands, NC | Installer (Level II) | 1424 |
| Wnc Septic Installers Llc | Franklin, NC | Installer (Level II) | 11006 |
| Woods Clearing & Grading | Franklin, NC | Installer (Level II) | 1426 |
| Young Contracting Services | Franklin, NC | Installer (Level II) | 9658 |
90 companies in the NCOWCICB certified onsite wastewater contractor & inspector lists are based in Macon County as of 2026-07-23. Companies based elsewhere in North Carolina also commonly serve the county.
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