| GCGreen Cold Formed Steel LLC | Edinburg | — | ◇ UNVERIFIED |
| GCGulf Coast Steel, INC | Houston | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services | Amarillo | — | ◇ UNVERIFIED |
| HIHarris Industries INC | Longview | — | ◇ UNVERIFIED |
| HSHeat Shield INC. | Gladewater | — | ◇ UNVERIFIED |
| HHemcorp | San Antonio | — | ◇ UNVERIFIED |
| HMHenderson Manufacturing Company | Pittsburg | — | ◇ UNVERIFIED |
| HPHigh Performance Ropes of America | Belton | — | ◇ UNVERIFIED |
| HIHirschfeld Industries | San Angelo | — | ◇ UNVERIFIED |
| HIHirschfeld Industries | El Paso | — | ◇ UNVERIFIED |
| HPHi-tech Precious Metals & Refinery LLC | Dallas | — | ◇ UNVERIFIED |
| HOHomeland Outdoor Products INC. | Tyler | — | ◇ UNVERIFIED |
| HAHowmet Aluminum Castings | Del Rio | — | ◇ UNVERIFIED |
| HCHowmet Casting & Services, INC. | Wichita Falls | — | ◇ UNVERIFIED |
| HBHrp Brownsville LLC | Brownsville | — | ◇ UNVERIFIED |
| IIInsteel Industries, INC. | Dayton | — | ◇ UNVERIFIED |
| IWInternational Wire Group INC. | El Paso | — | ◇ UNVERIFIED |
| IIInwesco, INC. | Fort Worth | — | ◇ UNVERIFIED |
| IBIpsco Baytown Works | Baytown | — | ◇ UNVERIFIED |
| JEJindal Enterprises, LLC | Baytown | — | ◇ UNVERIFIED |
| JRJots Rentals | Longview | — | ◇ UNVERIFIED |
| JSJsw Steel Holding (usa), INC. | Baytown | — | ◇ UNVERIFIED |
| KBK & B Steel | Clarksville | — | ◇ UNVERIFIED |
| KWKelmel Wheels & Accessoies | Laredo | — | ◇ UNVERIFIED |
| KIKrw, INC. | Cypress | — | ◇ UNVERIFIED |
| KSKyoei Steel Group | Anthony | — | ◇ UNVERIFIED |
| LTLaguna Tubular Products Corporation | Houston | — | ◇ UNVERIFIED |
| LQLa Quinta Plant | Portland | — | ◇ UNVERIFIED |
| LTLevy Texas Mill Services | Sinton | — | ◇ UNVERIFIED |
| LMLincoln Manufacturing | Houston | — | ◇ UNVERIFIED |
| LSLone Star Die Casting CORP. | New Braunfels | — | ◇ UNVERIFIED |
| LSLone Star Foundries, INC. | Austin | — | ◇ UNVERIFIED |
| LFLufkin Foundry & Power Transmission Divisions | Lufkin | — | ◇ UNVERIFIED |
| MSMajestic Steel Usa, INC. | Grand Prairie | — | ◇ UNVERIFIED |
| MCManufactured Component Parts, LTD | Houston | — | ◇ UNVERIFIED |
| MPMarshall Plant | Scottsville | — | ◇ UNVERIFIED |
| MMcwane | Tyler | — | ◇ UNVERIFIED |
| MMMega Ms LTD | Highlands | — | ◇ UNVERIFIED |
| MMetaltech | Hillsboro | — | ◇ UNVERIFIED |
| MMMetroplex Metal Fabrication | Mesquite | — | ◇ UNVERIFIED |
| MCMid-south Control Line | Houston | — | ◇ UNVERIFIED |
| MEMirin Enterprises LLC | Seagoville | — | ◇ UNVERIFIED |
| MRMjd Resource INC. | Frisco | — | ◇ UNVERIFIED |
| MBMr. Butler | Fulshear | — | ◇ UNVERIFIED |
| NFNational Foundry and Mfg. INC. | Crane | — | ◇ UNVERIFIED |
| NCNiland Company | El Paso | — | ◇ UNVERIFIED |
| NPNorthwest Pipe-houston | Houston | — | ◇ UNVERIFIED |
| NTNov Tubescope | Odessa | — | ◇ UNVERIFIED |
| NTNss Technologies, INC. | Tyler | — | ◇ UNVERIFIED |
| NSNucor Steel Longview | Longview | — | ◇ UNVERIFIED |
