| Company | Location | Certifications | License # |
|---|---|---|---|
| Alfredo Guerra | — | Installer (Class I) | OS0007453 |
| Benito R Juarez | — | Installer (Class II) | OS0025578 |
| Gilberto Cisneros | — | Installer (Class I)Designer (Site Evaluator) | OS0035271 |
| Graciela Ortiz | — | Installer (Class I) | OS0039771 |
| Gustavo Olivares | — | Installer (Class I)Designer (Site Evaluator) | OS0031244 |
| Israel Rodriguez | — | Installer (Class I) | OS0039987 |
| James S Green | — | Installer (Class I) | OS0033782 |
| Jesse Silva | — | Designer (Site Evaluator) | OS0020585 |
| Jorge M Jr Rodriguez | — | Installer (Class I) | OS0032072 |
| Jose A Guerra | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0022915 |
| Jose Antonio Alaniz | — | Installer (Class I) | OS0040562 |
| Joshua Jaso | — | Installer (Class I)Designer (Site Evaluator) | OS0040194 |
| Miguel N Alaniz | — | Installer (Class I) | OS0041152 |
| Noe Alaniz | — | Installer (Class I) | OS0034165 |
| Raul S Pizano | — | Installer (Class II)Designer (Site Evaluator) | OS0023599 |
| Robert Caballero | — | Installer (Class II)Designer (Site Evaluator) | OS0028621 |
| Traci Gonzalez | — | Installer (Class I) | OS0037182 |
| Valeriana Flores | — | Installer (Class I) | OS0041182 |
18 companies in the TCEQ OSSF (On-Site Sewage Facility) occupational licenses are based in Cameron County as of 2026-07-23. Companies based elsewhere in Texas also commonly serve the county.
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