| TBTenaris Bay City | Bay City | TX | Primary Metal Manufacturing331210 | 500+ | ◐ LIKELY ACTIVE |
| TFTexaloy Foundry | Floresville | TX | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| TCTexas City Crude Oil Terminal | Texas City | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| TETexas Electric Cooperatives Treating Div | Jasper | TX | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| TLTexas Lehigh Cement Company | Buda | TX | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| TLTexas Lime | Cleburne | TX | Nonmetallic Mineral Product Manufacturing327410 | — | ◐ LIKELY ACTIVE |
| TMTexas Manufacturing Company | Whitesboro | TX | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| TPTexas Petrochemicals | Houston | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| TPTexas Precision Plating | Garland | TX | Fabricated Metal Product Manufacturing332813 | 20-99 | ◐ LIKELY ACTIVE |
| TCThe Chemours Company FC, LLC - La Porte | La Porte | TX | Chemical Manufacturing325180 | 100-499 | ◐ LIKELY ACTIVE |
| TSThermal Solutions Manufacturing INC | Dallas | TX | Transportation Equipment Manufacturing336390 | — | ◐ LIKELY ACTIVE |
| TFThermo Fisher Scientific | Austin | TX | Chemical Manufacturing325414 | 100-499 | ◐ LIKELY ACTIVE |
| TGTippett Gas Plant | Mc Camey | TX | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| TITitan Industries | Spring | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| TCTotalenergies Cray Valley - Beaumont | Beaumont | TX | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| TPTotal Petrochemicals & Refining USA INC | Deer Park | TX | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| TETower Extrusions LTD | Olney | TX | Primary Metal Manufacturing331314 | 100-499 | ◐ LIKELY ACTIVE |
| TTToyotetsu Texas | San Antonio | TX | Transportation Equipment Manufacturing336211 | 500+ | ◐ LIKELY ACTIVE |
| TBTravis Body and Trailer | Houston | TX | Transportation Equipment Manufacturing336212 | 100-499 | ◐ LIKELY ACTIVE |
| THTrecora Hydrocarbons Combined Facility | Silsbee | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| TPTsa Processing | Arlington | TX | Fabricated Metal Product Manufacturing332813 | 20-99 | ◐ LIKELY ACTIVE |
| TOTwin Oaks Power Station | Bremond | TX | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| TOTxi Operations LP | Streetman | TX | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| TFTyson Farms | Center | TX | Food Manufacturing311613 | — | ◐ LIKELY ACTIVE |
| UWUfp-new Waverly | New Waverly | TX | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| UDUlterra Drilling Technologies LP | Fort Worth | TX | Machinery Manufacturing333132 | 100-499 | ◐ LIKELY ACTIVE |
| UCUnion Carbide Seadrift Cogen | Seadrift | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
| UCUnited Copper Industries | Denton | TX | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| ULUnited Laboratories Manufacturing | Carrollton | TX | Chemical Manufacturing325412 | 100-499 | ◐ LIKELY ACTIVE |
| UAUS Army Lone Star Army Ammunition Plant | Texarkana | TX | Fabricated Metal Product Manufacturing332993 | — | ◐ LIKELY ACTIVE |
| UAUS Army Red River Army Depot | Texarkana | TX | Transportation Equipment Manufacturing336992 | — | ◐ LIKELY ACTIVE |
| USU S Doe Pantex Plant | Panhandle | TX | Chemical Manufacturing325920 | — | ◐ LIKELY ACTIVE |
| UPUS Plating | Irving | TX | Fabricated Metal Product Manufacturing332813 | — | ◐ LIKELY ACTIVE |
| UZUS Zinc Houston Dust Plant | Houston | TX | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| UZUS Zinc - Metal | Houston | TX | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| VBValley By Products | Vinton | TX | Food Manufacturing311613 | 1-19 | ◐ LIKELY ACTIVE |
| VTVallourec Tube Alloy | Houston | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| VCValspar Coatings | Garland | TX | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| VSVeka South | Terrell | TX | Plastics and Rubber Products Manufacturing326121 | 100-499 | ◐ LIKELY ACTIVE |
| VSVictoria Site | Victoria | TX | Chemical Manufacturing325110 | — | ◐ LIKELY ACTIVE |
Viewpoint Manufacturing, LLC | Houston | TX | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| VRViking Ready Mix | Tyler | TX | Nonmetallic Mineral Product Manufacturing327320 | 20-99 | ◐ LIKELY ACTIVE |
| VVistawall | Terrell | TX | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
| VVutex | San Antonio | TX | Transportation Equipment Manufacturing336111 | 500+ | ◐ LIKELY ACTIVE |
| WTWatco Tanks INC. | Floresville | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| WWatson | Fort Worth | TX | Machinery Manufacturing333132 | 100-499 | ◐ LIKELY ACTIVE |
| WPWaxahachie Plant | Waxahachie | TX | Nonmetallic Mineral Product Manufacturing327212 | — | ◐ LIKELY ACTIVE |
| WFWayne Fueling Systems | Austin | TX | Machinery Manufacturing333913 | 500+ | ◐ LIKELY ACTIVE |
Weatherford Aerospace | Weatherford | TX | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| WIWellmark International - Centeral Life Sciences | Dallas | TX | Chemical Manufacturing325320 | 100-499 | ◐ LIKELY ACTIVE |