| GPGeneral Plastics and Composites | Houston | 100–499 | ◐ LIKELY ACTIVE |
| GCGulf Coast Oil & Gas Industries | Houston | 20–99 | ◐ LIKELY ACTIVE |
| HHouston | Houston | 100–499 | ◐ LIKELY ACTIVE |
| HSHouston Service Industries | Houston | 20–99 | ◐ LIKELY ACTIVE |
| MEMeridian Equipment, INC. | Houston | 20–99 | ◐ LIKELY ACTIVE |
| NWNov Wise Breen Drive | Houston | — | ◐ LIKELY ACTIVE |
| STSchlumberger Technology | Katy | — | ◐ LIKELY ACTIVE |
| SAShield Air Solutions, INC. | Houston | 100–499 | ◐ LIKELY ACTIVE |
| SESiemens Energy | Houston | 100–499 | ◐ LIKELY ACTIVE |
| SLSpooltech, LLC | Houston | — | ◐ LIKELY ACTIVE |
| TETas Energy | Houston | 500+ | ◐ LIKELY ACTIVE |
| TETAS Energy Inc. Wingfoot | Houston | 20–99 | ◐ LIKELY ACTIVE |
| TTcr | Houston | 20–99 | ◐ LIKELY ACTIVE |
| TOThe Ortega Stainless Company LLC | Tomball | — | ◐ LIKELY ACTIVE |
| TOThrustmaster of Texas, INC | Houston | — | ▲ REPORTED CLOSED |
| UCUpg Company, LLC | Houston | 20–99 | ◐ LIKELY ACTIVE |
| GPGe Packaged Power Jport | Houston | — | ◐ LIKELY ACTIVE |
 Advanced Containment Systems | Houston | — | ◇ UNVERIFIED |
| ACAshbrook CORP | Houston | — | ◇ UNVERIFIED |
| BTBell Trucks America INC. | Houston | — | ◇ UNVERIFIED |
| CXCdab Xii | Houston | — | ◇ UNVERIFIED |
| CECrc Evans Houston Automatic Welding | Houston | — | ◇ UNVERIFIED |
| DRDerichebourg Recycling USA | Houston | — | ◇ UNVERIFIED |
| DPDover Precision Components | Houston | — | ◇ UNVERIFIED |
| DTDownhole Technology | Houston | — | ◇ UNVERIFIED |
| FEFmc Energy Systems | Houston | — | ◇ UNVERIFIED |
| FEForsyth Eng. & Machine CORP | Houston | — | ◇ UNVERIFIED |
| GHG & H Diversified Manufacturing | Houston | — | ◇ UNVERIFIED |
| GMGoodman Manufacturing Company, L.p. | Waller | — | ◇ UNVERIFIED |
| GMGoodman Mfg. CO. L.p. | Houston | — | ◇ UNVERIFIED |
| HCHalliburton Casing Manufacturing Center of Excelle | Houston | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services INC Security Dbs | Houston | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services North Belt Facility | Houston | — | ◇ UNVERIFIED |
| HCHarry Cameron Technology Center | Houston | — | ◇ UNVERIFIED |
| HMHughes M.p.d. | Houston | — | ◇ UNVERIFIED |
| IDInnovex Downhole Solutions | Houston | — | ◇ UNVERIFIED |
| MMerichem | Houston | — | ◇ UNVERIFIED |
| MHMetals House INC | Houston | — | ◇ UNVERIFIED |
| NONational Oilwell Galena Park | Galena Park | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | Houston | — | ◇ UNVERIFIED |
| NFNhr Facility | Houston | — | ◇ UNVERIFIED |
| NRNov Rig Systems Rubber Plant | Houston | — | ◇ UNVERIFIED |
| OSOil States Industries | Houston | — | ◇ UNVERIFIED |
 Oil States Industries, INC. - Mmc | Houston | — | ◇ UNVERIFIED |
| PCPerformance Contracting | Pasadena | — | ◇ UNVERIFIED |
| RHReed Hycalog LP | Houston | — | ◇ UNVERIFIED |
| RSRelevant Solutions | Houston | — | ◇ UNVERIFIED |
| S3Stage 3 Separation | Houston | — | ◇ UNVERIFIED |
| SSStewart & Stevenson LLC | Houston | — | ◇ UNVERIFIED |
| SPSulzer Pumps Houston | La Porte | — | ◇ UNVERIFIED |
