| Company | Location | Certifications | License # |
|---|---|---|---|
| Abraham Figueroa | — | Installer (Class I) | OS0040130 |
| Brandon Patrick Byas | — | Installer (Class I) | OS0039581 |
| Claus D Rs Raetzer | — | Designer (Site Evaluator) | OS0018032 |
| David H Jr Yepez | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0004975 |
| Joe L Sr Borrego | — | Installer (Class I) | OS0032182 |
| John Strickland Luby | — | Installer (Class II)Inspector (Maintenance Provider) | OS0041070 |
| Juan Andres Ii Marines | — | Designer (Site Evaluator) | OS0011810 |
| Manuel G Arredondo | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0003136 |
| Mark Anthony Cadena | — | Installer (Class II) | OS0041004 |
| Steven Rios | — | Installer (Class I)Designer (Site Evaluator) | OS0036564 |
| Zachary James Garza | — | Installer (Class I) | OS0040834 |
11 companies in the TCEQ OSSF (On-Site Sewage Facility) occupational licenses are based in Nueces County as of 2026-07-23. Companies based elsewhere in Texas also commonly serve the county.
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