| OOOffshore Operations Houston | Houston | TX | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| PAPenn Aluminum | Harlingen | TX | Primary Metal Manufacturing331316 | 20-99 | ◐ LIKELY ACTIVE |
| PCPure Castings | Lockhart | TX | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| QEQuality Electric Steel Castings | Houston | TX | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |
| SSSeah Steel USA | Houston | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| SDSteel Dynamics Southwest - Sinton Division | Sinton | TX | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| TFTaylor Foundry | Wichita Falls | TX | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| TTTci Texarkana, INC | Texarkana | TX | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| TBTenaris Bay City | Bay City | TX | Primary Metal Manufacturing331210 | 500+ | ◐ LIKELY ACTIVE |
| TFTexaloy Foundry | Floresville | TX | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| TETower Extrusions LTD | Olney | TX | Primary Metal Manufacturing331314 | 100-499 | ◐ LIKELY ACTIVE |
| UZUS Zinc Houston Dust Plant | Houston | TX | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| UZUS Zinc - Metal | Houston | TX | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| VTVallourec Tube Alloy | Houston | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| VVistawall | Terrell | TX | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
| WSWmc Steel | Conroe | TX | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| WSW Silver | Vinton | TX | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| WRWyatt Resources INC | Fulshear | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| EREcs Refining | Terrell | TX | Primary Metal Manufacturing331423 | — | ◐ LIKELY ACTIVE |
| GCGeneral Cable Industries Marshall Plant | Scottsville | TX | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
| TPTyler Pipe | Tyler | TX | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| UDUS Denro Steels | Baytown | TX | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| ATAllied Tube & Conduit Corporation | Liberty | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| AOAlpha Omega Recycling INC | Longview | TX | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| ASAmerican Spincast INC (dba Amstock Supply) | Belton | TX | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| APAtomized Products Group | Garland | TX | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| A9Atrium 930 Hensley Ln | Wylie | TX | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| CFCoastal Foundry CO | Houston | TX | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| CDCrouse-hinds Div of Cooper Inds | Amarillo | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| DIDenison Industries Main Foundry | Denison | TX | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| EIEbaa Iron Eastland Plant | Eastland | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GTGoulds Turbine Foundry | Slaton | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| HLHighland Lakes Quality Casting INC. | Marble Falls | TX | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| HCHowmet CORP | Wichita Falls | TX | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| HAHydro Aluminum | Commerce | TX | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| NNNibco Nacogdoches Plant | Nacogdoches | TX | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| SMSalzgitter Mannesmann Stainless Tubes | Houston | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| SESouthwire El Paso Operations | El Paso | TX | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| SFSpm Flow Control | Fort Worth | TX | Primary Metal Manufacturing331529 | — | ◇ UNVERIFIED |
| SAStandard Alloys Port Arthur | Port Arthur | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| SCSure Cast | Burnet | TX | Primary Metal Manufacturing331512 | — | ◇ UNVERIFIED |
| TCTenarius Coiled Tube | Houston | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| THTexas Honing INC - Pearland | Pearland | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| TMTexas Metal Casting | Lufkin | TX | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| UCUnited Copper Industries | Denton | TX | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| VQVarco Quality Tubing Tuboscope Div | Houston | TX | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| WEWestern Extrusions | Carrollton | TX | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| SDSuperior Die Cast LLC | Jacksonville | TX | Primary Metal Manufacturing331523 | — | ◐ LIKELY ACTIVE |
| ASAdvantage Steel Service, INC. | North Richland Hills | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| AOAlcoa-rockdale Operations | Rockdale | TX | Primary Metal Manufacturing331312 | — | ◐ LIKELY ACTIVE |