| DTDorian Tool CO | East Bernard | TX | Machinery Manufacturing333512 | — | ◇ UNVERIFIED |
| DPDover Precision Components | Houston | TX | Machinery Manufacturing333613 | — | ◇ UNVERIFIED |
| DTDownhole Technology | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| DPDragon Products North Silsbee Facility | Silsbee | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| DWDragon Wespine Facility | Beaumont | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| EOElcan Optical Technologies | Richardson | TX | Machinery Manufacturing333310 | — | ◇ UNVERIFIED |
| EREvapco - Rvs | Bryan | TX | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| EMExcel Machinery LTD | Amarillo | TX | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| FAFallas Automation | Waco | TX | Machinery Manufacturing333993 | — | ◇ UNVERIFIED |
| FEFmc Energy Systems | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| FEForsyth Eng. & Machine CORP | Houston | TX | Machinery Manufacturing333318 | — | ◇ UNVERIFIED |
| GEGe Engine Services Mcallen | Mcallen | TX | Machinery Manufacturing333611 | — | ◇ UNVERIFIED |
| GGeodynamics | Millsap | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| GOGe Oil & Gas Esp | Midland | TX | Machinery Manufacturing333992 | — | ◇ UNVERIFIED |
| GHG & H Diversified Manufacturing | Houston | TX | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |
| GMGoodman Manufacturing Company, L.p. | Waller | TX | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| GMGoodman Mfg. CO. L.p. | Houston | TX | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
 Grundfos Cbs | Brookshire | TX | Machinery Manufacturing333914 | — | ◇ UNVERIFIED |
| HCHalliburton Casing Manufacturing Center of Excelle | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services - Carrollton Mfg & Technology | Carrollton | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services Carrollton Plant | Carrollton | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services INC Security Dbs | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services Jet Research Center | Alvarado | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services North Belt Facility | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HCHarry Cameron Technology Center | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HMHowco Metals Management | Yorktown | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HMHughes M.p.d. | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| IPInfrared Products - L-3 | Garland | TX | Machinery Manufacturing333310 | — | ◇ UNVERIFIED |
| IDInnovex Downhole Solutions | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| JPJohnson Pump General | Brookshire | TX | Machinery Manufacturing333911 | — | ◇ UNVERIFIED |
| LLancer | San Antonio | TX | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| LILoadcraft Industries | Brady | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| MMMagee Machine and Manufacturing | Mesquite | TX | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| MAMagic Aire Division | Wichita Falls | TX | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| MCMartin Conveyor Division | Mansfield | TX | Machinery Manufacturing333613 | — | ◇ UNVERIFIED |
| MSMartin Sprocket & Gear Fort Worth | Fort Worth | TX | Machinery Manufacturing333293 | — | ◇ UNVERIFIED |
| MTMaterials Transportation | Temple | TX | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| MMerichem | Houston | TX | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| MHMetals House INC | Houston | TX | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
| MMunters | Selma | TX | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| NONational Oilwell Galena Park | Galena Park | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| NONational Oilwell Varco LP | Cedar Park | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| NFNhr Facility | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| NCNoble Construction Equipment INC | Lubbock | TX | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| NRNov Rolligon Anderson | Anderson | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| OBOdessa Brandt | Odessa | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| OSOil States Industries | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
 Oil States Industries, INC. - Mmc | Houston | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| PHParker Hannifin Filtration | Mineral Wells | TX | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
