| Company | Location | Certifications | License # |
|---|---|---|---|
| Alton Joe Hatcher | — | Installer (Class II) | OS0039126 |
| Anthony Scott Jones | — | Installer (Class II) | OS0036076 |
| April V Williams | — | Installer (Class I) | OS0041061 |
| Brady Alexander | — | Installer (Class II)Inspector (Maintenance Provider) | OS0040974 |
| Christian B Harris | — | Installer (Class II)Inspector (Maintenance Provider) | OS0037787 |
| Christian Lane Koller | — | Inspector (Maintenance Provider) | MP0002780 |
| Cortney Rae Baker | — | Inspector (Maintenance Provider) | MP0002876 |
| Danny Oque Hughes | — | Installer (Class I) | OS0035433 |
| Daryl B Landrum | — | Inspector (Maintenance Provider) | MP0001112 |
| James Frierson | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0005807 |
| James Michael Underwood | — | Inspector (Maintenance Provider) | MP0002537 |
| Jessie R Jr Foster | — | Installer (Class II)Inspector (Maintenance Provider) | OS0037788 |
| Jimmy Don Hughes | — | Installer (Class II)Inspector (Maintenance Provider) | OS0030094 |
| Jody Lynn Wilson | — | Installer (Class I) | OS0041423 |
| Jody Whitcomb | — | Designer (Site Evaluator) | OS0038302 |
| Joe D Hatcher | — | Installer (Class II)Inspector (Maintenance Provider) | OS0004910 |
| Joshua Whitley | — | Installer (Class II) | OS0038604 |
| Kenneth Rhoades | — | Inspector (Maintenance Provider) | MP0002800 |
| Kirk A Gillispie | — | Installer (Class II)Inspector (Maintenance Provider) | OS0034152 |
| Mark Christopher Merani | — | Installer (Class I) | OS0041219 |
| Michael D Jr Gonzales | — | Inspector (Maintenance Provider) | MP0002625 |
| Michael Diaz | — | Installer (Class I) | OS0040359 |
| Michael R Sherwood | — | Installer (Class II)Inspector (Maintenance Provider) | OS0008527 |
| Monty J Roberts | — | Installer (Class II)Inspector (Maintenance Provider) | OS0029939 |
| Neal W Crow | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0027265 |
| P Thomas Koller | — | Installer (Class II)Inspector (Maintenance Provider) | OS0001493 |
| Phillip Ross Marlar | — | Designer (Site Evaluator) | OS0009819 |
| Reginald Wright | — | Installer (Class I) | OS0039840 |
| Robert P Rodriguez | — | Inspector (Maintenance Provider) | MP0002462 |
| Ronald E Harris | — | Inspector (Maintenance Provider) | MP0001734 |
| Ross Taylor Marlar | — | Designer (Site Evaluator) | OS0039016 |
| Roy L Hopkins | — | Inspector (Maintenance Provider) | MP0000722 |
| Samantha L Walls | — | Installer (Class II)Inspector (Maintenance Provider) | OS0039416 |
| Tanner Marlar | — | Designer (Site Evaluator) | OS0036231 |
| Timothy Scott Kinesmcleod | — | Installer (Class I) | OS0039839 |
| Tommy L Rodden | — | Installer (Class II)Inspector (Maintenance Provider) | OS0004767 |
| Tristan A Embry | — | Installer (Class I) | OS0039493 |
| Virginia Hopkins | — | Inspector (Maintenance Provider) | MP0000723 |
| Wesley Craig Carter | — | Installer (Class I) | OS0040596 |
39 companies in the TCEQ OSSF (On-Site Sewage Facility) occupational licenses are based in Kaufman County as of 2026-07-23. Companies based elsewhere in Texas also commonly serve the county.
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