| CXCdab Xii | Houston | — | ◇ UNVERIFIED |
| CIColumbus Industries Texas | El Paso | — | ◇ UNVERIFIED |
| CSCpi - Stafford | Stafford | — | ◇ UNVERIFIED |
| CECrc Evans Houston Automatic Welding | Houston | — | ◇ UNVERIFIED |
| DDDe Dietrich | Corpus Christi | — | ◇ UNVERIFIED |
| DRDerichebourg Recycling USA | Houston | — | ◇ UNVERIFIED |
| DTDorian Tool CO | East Bernard | — | ◇ UNVERIFIED |
| DPDover Precision Components | Houston | — | ◇ UNVERIFIED |
| DTDownhole Technology | Houston | — | ◇ UNVERIFIED |
| DPDragon Products North Silsbee Facility | Silsbee | — | ◇ UNVERIFIED |
| DWDragon Wespine Facility | Beaumont | — | ◇ UNVERIFIED |
| EOElcan Optical Technologies | Richardson | — | ◇ UNVERIFIED |
| EREvapco - Rvs | Bryan | — | ◇ UNVERIFIED |
| EMExcel Machinery LTD | Amarillo | — | ◇ UNVERIFIED |
| FAFallas Automation | Waco | — | ◇ UNVERIFIED |
| FEFmc Energy Systems | Houston | — | ◇ UNVERIFIED |
| FEForsyth Eng. & Machine CORP | Houston | — | ◇ UNVERIFIED |
| GEGe Engine Services Mcallen | Mcallen | — | ◇ UNVERIFIED |
| GGeodynamics | Millsap | — | ◇ UNVERIFIED |
| GOGe Oil & Gas Esp | Midland | — | ◇ UNVERIFIED |
| GHG & H Diversified Manufacturing | Houston | — | ◇ UNVERIFIED |
| GMGoodman Manufacturing Company, L.p. | Waller | — | ◇ UNVERIFIED |
| GMGoodman Mfg. CO. L.p. | Houston | — | ◇ UNVERIFIED |
 Grundfos Cbs | Brookshire | — | ◇ UNVERIFIED |
| HCHalliburton Casing Manufacturing Center of Excelle | Houston | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services - Carrollton Mfg & Technology | Carrollton | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services Carrollton Plant | Carrollton | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services INC Security Dbs | Houston | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services Jet Research Center | Alvarado | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services North Belt Facility | Houston | — | ◇ UNVERIFIED |
| HCHarry Cameron Technology Center | Houston | — | ◇ UNVERIFIED |
| HSHayes & Stolz Industrial Manufacturing Co., LLC | Burleson | — | ◇ UNVERIFIED |
| HMHowco Metals Management | Yorktown | — | ◇ UNVERIFIED |
| HMHughes M.p.d. | Houston | — | ◇ UNVERIFIED |
| IPInfrared Products - L-3 | Garland | — | ◇ UNVERIFIED |
| IDInnovex Downhole Solutions | Houston | — | ◇ UNVERIFIED |
| JPJohnson Pump General | Brookshire | — | ◇ UNVERIFIED |
| LLancer | San Antonio | — | ◇ UNVERIFIED |
| LILoadcraft Industries | Brady | — | ◇ UNVERIFIED |
| MMMagee Machine and Manufacturing | Mesquite | — | ◇ UNVERIFIED |
| MAMagic Aire Division | Wichita Falls | — | ◇ UNVERIFIED |
| MCMartin Conveyor Division | Mansfield | — | ◇ UNVERIFIED |
| MSMartin Sprocket & Gear Fort Worth | Fort Worth | — | ◇ UNVERIFIED |
| MTMaterials Transportation | Temple | — | ◇ UNVERIFIED |
| MMerichem | Houston | — | ◇ UNVERIFIED |
| MHMetals House INC | Houston | — | ◇ UNVERIFIED |
| MMunters | Selma | — | ◇ UNVERIFIED |
| NONational Oilwell Galena Park | Galena Park | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | Houston | — | ◇ UNVERIFIED |
| NONational Oilwell Varco LP | Cedar Park | — | ◇ UNVERIFIED |
