| Company | Location | Certifications | License # |
|---|---|---|---|
| Adam Whanger | Lewisburg, WV | Installer (Class I) | 54-16-004 |
| Andrew J. Workman | Renick, WV | Installer (Class II) | 54-05-A-0012 |
| Bobbie Shawn Treadway | Rupert, WV | Installer (Class II) | 54-19-A-006 |
| Brent Kevin Baldwin | Renick, WV | Installer (Class I) | 54-04-0063 |
| Bruce R. Kersey Ii | White Sulpher Springs, WV | Installer (Class II) | 54-16-A-036 |
| Cameron C. Ryder | White Sulphur Springs, WV | Installer (Class I) | 54-22-021 |
| Chandler L. Cline | Lewisburg, WV | Installer (Class I) | 54-15-027 |
| Clarence L. Midkiff | Meadow Bridge, WV | Installer (Class I) | 54-08-0048 |
| Coleman Burns | White Sulphur Springs, WV | Installer (Class I) | 54-25-017 |
| Corey Dauwel | Caldwell, WV | Installer (Class I) | 54-12-033 |
| Danny B. Rowe | Crawley, WV | Installer (Class I) | 54-95-0408 |
| David Emerson Trout | Alderson, WV | Installer (Class I) | 54-23-027 |
| David L. Clinebell | White Sulphur Springs, WV | Installer (Class I) | 54-03-0011 |
| David P. Denning | Ronceverte, WV | Installer (Class I) | 54-20-044 |
| Dwight L. Gilkeson | Clintonville, WV | Installer (Class II) | 54-76-A-0481 |
| Garrett W. O'dell Ii | Crawley, WV | Installer (Class I) | 54-17-043 |
| James I Campbell | Frankford, WV | Installer (Class I) | 54-23-060 |
| Jerry A. Kincaid | White Sulphur Springs, WV | Installer (Class I) | 54-13-001 |
| Jimmy R. Brown | Alderson, WV | Installer (Class I) | 54-13-008 |
| Joe Dale Loudermilk Jr. | Lewisburg, WV | Installer (Class I) | 54-02-0011 |
| John L. Lynch | White Sulphur Springs, WV | Installer (Class I) | 54-03-0048 |
| Joshua Blankenship | White Sulphur Springs, WV | Installer (Class I) | 54-24-0071 |
| Justin J. Doss | Alderson, WV | Installer (Class II) | 54-17-A-012 |
| Kevin L. Anderson | Lewisburg, WV | Installer (Class I) | 54-14-004 |
| Martin Schleiff | Lewisburg, WV | Installer (Class I) | 54-25-050 |
| Michael Brent Lynch | White Sulphur Springs, WV | Installer (Class II) | 54-13-A-003 |
| Michael Mcclung | Lewisburg, WV | Installer (Class II) | 54-16-A-034 |
| Myron C. Vaughan | Lewisburg, WV | Installer (Class I) | 54-99-0406 |
| Nathaniel Johnson | White Sulphur Springs, WV | Installer (Class I) | 54-23-063 |
| Noel K. Ryder | White Sulphur Springs, WV | Installer (Class I) | 54-22-022 |
| Robert B. Anderson | Frankford, WV | Installer (Class I) | 54-06-0031 |
| Robert M. Hylton | Ronceverte, WV | Installer (Class II) | 54-21-A-081 |
| Roger H. Vance | Caldwell, WV | Installer (Class I) | 54-76-0149 |
| Urban L. Osborne | Clintonville, WV | Installer (Class II) | 54-96-A-0423 |
| Victor Mcintyre | White Sulphur Springs, WV | Installer (Class I) | 54-07-0051 |
| William J. Zimmerman | Caldwell, WV | Installer (Class I) | 54-89-0402 |
36 companies in the West Virginia OEHS certified onsite sewage system installers are based in Greenbrier County as of 2026-07-23. Companies based elsewhere in West Virginia also commonly serve the county.
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