| Company | Location | Certifications | License # |
|---|---|---|---|
| John K Sheffield | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0028420 |
| John Paul Hoffpauir | — | Installer (Class I) | OS0041253 |
| Logan Caleb Fant | — | Installer (Class II) | OS0041136 |
| Luther L Jr Hancock | — | Installer (Class I)Designer (Site Evaluator) | OS0037848 |
| Scott Francis Martin | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0035377 |
| Shawn W Bible | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0027355 |
6 companies in the TCEQ OSSF (On-Site Sewage Facility) occupational licenses are based in Tyler County as of 2026-07-23. Companies based elsewhere in Texas also commonly serve the county.
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