| Company | Location | Certifications | License # |
|---|---|---|---|
| Birchfield Water And Septic | Bryson City, NC | Installer (Level II) | 11518 |
| Brush Creek Ent | Bryson City, NC | Installer (Level IV)Inspector | 2373 |
| Carolina Development & Construction Inc | Bryson City, NC | Installer (Level II) | 14802 |
| Cochran Excavating Llc | Bryson City, NC | Installer (Level IV)Inspector | 1579 |
| Cochran Waste Company | Bryson City, NC | Installer (Level II) | 9268 |
| Ebci Housing Community Development | Cherokee, NC | Installer (Level II) | 5384 |
| Ebci Housing Community Development Infra | Cherokee, NC | Installer (Level II) | 5386 |
| Equilateral Grading Operations Llc | Bryson City, NC | Installer (Level II) | 11250 |
| Greens Septic | Bryson City, NC | Installer (Level II) | 2609 |
| Harold Ray Collins Construction Co | Bryson City, NC | Installer (Level IV) | 2369 |
| Harold Ray Collins Construction Co | Bryson City, NC | Installer (Level IV) | 2370 |
| Harold Ray Collins Construction Co | Byrson City, NC | Installer (Level IV) | 2371 |
| Jenkins Contracting | Bryson City, NC | Installer (Level II) | 3841 |
| Kenneth Parton | Bryson City, NC | Installer (Level II) | 2285 |
| Kenny Ball Septic & Grading | Bryson City, NC | Installer (Level II) | 3551 |
| Lee English Sewer & Drain Service Inc | Bryson City, NC | Installer (Level II) | 6595 |
| Millsaps Excavating | Bryson City, NC | Installer (Level II) | 9555 |
| Mountain Excavating | Almond, NC | Installer (Level II) | 1627 |
| Phillip Smith Const Co | Bryson City, NC | Installer (Level IV)Inspector | 2433 |
| Ross Collins Construction | Bryson City, NC | Installer (Level II) | 2099 |
| Sdids Septic Service | Bryson City, NC | Installer (Level IV)Inspector | 4369 |
| Shuler Excavation | Bryson City, NC | Installer (Level II) | 9725 |
| Silvermine Dirt Works Llc | Bryson City, NC | Installer (Level II) | 11363 |
| Stanberry Excavating | Bryson City, NC | Installer (Level II) | 2322 |
| Travis Hall | Bryson City, NC | Installer (Level II) | 14052 |
| Watkins Services | Bryson City, NC | Installer (Level IV)Inspector | 5935 |
26 companies in the NCOWCICB certified onsite wastewater contractor & inspector lists are based in Swain County as of 2026-07-23. Companies based elsewhere in North Carolina also commonly serve the county.
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