| Company | Location | Certifications | License # |
|---|---|---|---|
| Adam R Sr Brown | — | Installer (Class II) | OS0034800 |
| Amber Leann Thompson | — | Designer (Site Evaluator) | OS0037688 |
| Andrew William Herring | — | Installer (Class I) | OS0040826 |
| Benjamin L Head | — | Designer (Site Evaluator) | OS0038097 |
| Blake R Janek | — | Installer (Class II)Inspector (Maintenance Provider) | OS0036861 |
| Brandon L Beach | — | Installer (Class II) | OS0033994 |
| Bryan E Cpa Russell | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0030384 |
| Buck A Grote | — | Installer (Class II)Inspector (Maintenance Provider) | OS0033319 |
| Charles H Bleeker | — | Installer (Class II)Inspector (Maintenance Provider) | OS0001426 |
| Cleve C Jr Weyenberg | — | Installer (Class II)Inspector (Maintenance Provider) | OS0001784 |
| Cory Steve Turnbow | — | Installer (Class II) | OS0007404 |
| Curtis A Langley | — | Installer (Class II) | OS0038459 |
| Danny R Ii Scarbro | — | Inspector (Maintenance Provider) | MP0002076 |
| Danny R Scarbro | — | Installer (Class II)Designer (Site Evaluator) | OS0004616 |
| Darrell G James | — | Installer (Class I) | OS0038943 |
| David A Belek | — | Installer (Class I) | OS0041556 |
| Delsey L Scarbro | — | Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0038091 |
| Doyle Wayne Rs Culp | — | Designer (Site Evaluator) | OS0006470 |
| Dusty Ray Reid | — | Designer (Site Evaluator) | OS0038158 |
| Ekpen Okoruwa | — | Designer (Site Evaluator) | OS0033328 |
| Eric Miller | — | Installer (Class II)Inspector (Maintenance Provider) | OS0037304 |
| Gary Don Allen | — | Installer (Class I) | OS0041418 |
| Gerald Ashley Tierce | — | Installer (Class II) | OS0041295 |
| Gordon Dean Skinner | — | Installer (Class I) | OS0040710 |
| Jackey D Lackey | — | Installer (Class II)Inspector (Maintenance Provider) | OS0027917 |
| Jackie E Davenport | — | Installer (Class II)Inspector (Maintenance Provider) | OS0000466 |
| Jackie Morgan | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0037941 |
| James E Schettler | — | Installer (Class II) | OS0000501 |
| James Floyd Mcwhirter | — | Installer (Class II)Inspector (Maintenance Provider) | OS0037081 |
| James L Rs Snyder | — | Installer (Class II)Designer (Site Evaluator) | OS0004776 |
| James Marshall Jr Barton | — | Installer (Class II)Inspector (Maintenance Provider) | OS0008160 |
| Jason Witherspoon | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0038412 |
| Jeremy J Robinson | — | Installer (Class II) | OS0007491 |
| Jeremy W Bickell | — | Installer (Class II)Inspector (Maintenance Provider) | OS0034647 |
| John Allen Uselton | — | Installer (Class II) | OS0039587 |
| Jon David Ellis | — | Installer (Class I) | OS0040612 |
| Jose Louis Diaz | — | Installer (Class II)Inspector (Maintenance Provider) | OS0040660 |
| Jose Luis Reyes | — | Inspector (Maintenance Provider) | MP0000489 |
| Katrina D Holland | — | Installer (Class II) | OS0003361 |
| Mark D Decker | — | Installer (Class II)Inspector (Maintenance Provider) | OS0022450 |
| Matthew B Russell | — | Inspector (Maintenance Provider) | MP0002845 |
| Michael R Brown | — | Installer (Class II)Inspector (Maintenance Provider) | OS0001733 |
| Monty Wilson | — | Installer (Class I) | OS0039988 |
| Nicholas Castania | — | Installer (Class II) | OS0041087 |
| Paul A Brewer | — | Installer (Class II)Inspector (Maintenance Provider) | OS0004507 |
| Perry Cummings | — | Installer (Class II)Inspector (Maintenance Provider) | OS0036815 |
| Preston Dean Allen | — | Installer (Class II)Inspector (Maintenance Provider) | OS0004060 |
| Randy K Youngblood | — | Installer (Class II)Inspector (Maintenance Provider) | OS0000596 |
| Randy Wayne Reid | — | Installer (Class I) | OS0038052 |
| Raymond Don Mitchell | — | Installer (Class I) | OS0039710 |
| Richard J Fletcher | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0021080 |
| Ronny Darrell Mcpherson | — | Installer (Class II) | OS0006686 |
| Rudy Gasca | — | Installer (Class I) | OS0041058 |
| Samuel Moreno | — | Installer (Class II)Inspector (Maintenance Provider) | OS0037062 |
| Shelly D Davenport | — | Installer (Class II)Inspector (Maintenance Provider) | OS0008814 |
| Stephanie Salazar | — | Installer (Class II) | OS0039305 |
| Stephen Jacob Martin | — | Installer (Class I) | OS0038945 |
| Steven E Wahlenmaier | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0039130 |
| Terry R Mangrum | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0033427 |
| Thomas R Harrington | — | Installer (Class II)Inspector (Maintenance Provider) | OS0002214 |
| Von T Jackson | — | Installer (Class II)Inspector (Maintenance Provider) | OS0028766 |
| William K Ingram | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0019854 |
| Zachary D Thompson | — | Installer (Class II)Inspector (Maintenance Provider) | OS0035591 |
63 companies in the TCEQ OSSF (On-Site Sewage Facility) occupational licenses are based in Johnson County as of 2026-07-23. Companies based elsewhere in Texas also commonly serve the county.
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