| Company | Location | Certifications | License # |
|---|---|---|---|
| Aaron Sanders | — | Installer (Class II) | OS0040527 |
| Aiden Wayne Guess | — | Installer (Class II) | OS0038060 |
| Austin Wayne Carney | — | Installer (Class II) | OS0041142 |
| Brandon H Davis | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0032311 |
| Bryan D Porter | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0024363 |
| Carlton Clay Bradley | — | Installer (Class II)Designer (Site Evaluator) | OS0039636 |
| Charles R Wolfe | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0034411 |
| Danny Ray Hail | — | Installer (Class II)Designer (Site Evaluator) | OS0005724 |
| David Lawerence Slaton | — | Installer (Class II)Inspector (Maintenance Provider) | OS0005327 |
| David Parker Kendrick | — | Installer (Class II) | OS0039736 |
| Elwood Earl Taylor | — | Designer (Site Evaluator) | OS0010106 |
| Ivan Rangel | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0037630 |
| Jeffro Carl West | — | Installer (Class I) | OS0040366 |
| Kaitlin Kendrick | — | Installer (Class II)Inspector (Maintenance Provider) | OS0034605 |
| Mark J Sheppeard | — | Installer (Class I) | OS0037488 |
| Nicholas Tabone | — | Installer (Class I) | OS0040303 |
| Robert E Carroll | — | Installer (Class II) | OS0035467 |
| Terry L Eckermann | — | Installer (Class II) | OS0003479 |
| Veto R Jr Resa | — | Installer (Class II)Designer (Site Evaluator) | OS0035121 |
| William Cody Mcguffey | — | Installer (Class II)Designer (Site Evaluator) | OS0040816 |
| William G Harp | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0008191 |
21 companies in the TCEQ OSSF (On-Site Sewage Facility) occupational licenses are based in Lampasas County as of 2026-07-23. Companies based elsewhere in Texas also commonly serve the county.
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