| Company | Location | Certifications | License # |
|---|---|---|---|
| A-1 Advanced Energy Solutions | Knoxville, TN | Installer (Type C) | 11700 |
| Alpha Mechanical Service, Inc. - D. Coomes Ii , Tn | — | Installer (Type C) | 18145 |
| Arrowhead Enterprises | Corryton, TN | Installer | 14375 |
| Ascent Contractors LLC | Dandridge, TN | Installer (Type C) | 13338 |
| Brabston Trucking, Inc. | Knoxville, TN | Installer (Type C) | 13154 |
| Carmichael Excavation LLC | Knoxville, TN | Installer (Type C) | 11839 |
| Carson Plumbing | Knoxville, TN | Installer (Type C) | 13048 |
| Chandler Excavating, Llc | Mascot, TN | Installer (Type C) | 1337 |
| Claiborne Hauling, LLC | Knoxville, TN | Installer (Type C) | 11300 |
| Dynamic Homes And Structures | Knoxville, TN | Installer (Type C) | 18131 |
| Dynamis, Inc | Knoxville, TN | Installer (Type C) | 18156 |
| Frank Eddie Bailey Construction | Washburn, TN | Installer (Type C) | 13834 |
| Gary Mannis | Butler, TN | Installer (Type C) | 18144 |
| Gheen Construction | Knoxville, TN | Installer (Type C) | 17985 |
| Graves Excavating | Loudon, TN | Installer (Type C) | 392 |
| Hep Inc | Knoxville, TN | Installer (Type C) | 12569 |
| Hero Services LLC | Andersonville, TN | Installer (Type C) | 18052 |
| Holloway and Sons Excavating, LLC | Corryton, TN | Installer (Type C) | 14093 |
| Holmes Septic Works | Powell, TN | Installer (Type C) | 18166 |
| James edington construction | Knoxville, TN | Installer (Type C) | 2048 |
| James Willis Grading, Inc. | Knoxville, TN | Installer (Type C) | 10047 |
| Jlb Contracting | Knoxville, TN | Installer | 10921 |
| Knoxville Excavating | Knoxville, TN | Installer (Type C) | 11170 |
| L.R. Kitts & Sons | Knoxville, TN | Installer (Type C) | 11045 |
| Lane Excavations | Knoxville, TN | Installer (Type C) | 2315 |
| Lynn Sanford Construction, Inc | Knoxville, TN | Installer (Type C) | 13754 |
| M. L. Satterfield Backhoe Services | Knoxville, TN | Installer (Type C) | 1179 |
| Mac Construction Services | Knoxville, TN | Installer (Type C) | 18212 |
| Mcbee plumbing | Mascot, TN | Installer (Type C) | 17743 |
| McRAE PLUMBING | Knoxville, TN | Installer (Type C) | 12444 |
| Moody Construction, Llc | Mascot, TN | Installer (Type C) | 2349 |
| Mountain Life Excavating | Sevierville, TN | Installer | 18347 |
| R & D Plumbing, Inc. | Knoxville, TN | Installer (Type C) | 12023 |
| RDS Grading & Excavating | Talbott, TN | Installer (Type C) | 12158 |
| Rick Lemaster | Knoxville, TN | Installer (Type C) | 18061 |
| Rocky Top Septic Service, llc | Blaine, TN | Installer (Type C)Pumper | 18002 |
| Rod Yates Construction Company, Inc. | Knoxville, TN | Installer (Type C) | 2054 |
| Sawing Logs: Excavation | Maryville, TN | Installer (Type CLD) | 18097 |
| SMK Plumbing llc | clinton, TN | Installer (Type C) | 17885 |
| Steelman'S Construction | Knoxville, TN | Installer (Type C) | 18235 |
| Steve James | Coreyton, TN | Installer (Type C) | 13483 |
| Strickland Excavating | Knoxville, TN | Installer (Type C) | 10792 |
| Tennessee Home Craft | Knoxville, TN | Installer (Type C) | 13861 |
| Top Septic Service LLC | Knoxville, TN | Installer (Type C) | 14036 |
| Zielinski Excavating | Maynardville, TN | Installer (Type C) | 13021 |
45 companies in the TDEC active septic system installers & pumpers lists are based in Knox County as of 2026-07-23. Companies based elsewhere in Tennessee also commonly serve the county.
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