| SSS & S Tube INC | Bay Port | MI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| SUStant USA CORP | Romeo | MI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
 Stephens Pipe & Steel, LLC | Wyoming | MI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| SISulvan Industrial Piping | Perth Amboy | NJ | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| SDSuperior Drillpipe Manufacturing | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| STSuperior Tube Products, INC. | Davenport | IA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| SNSupply Network INC Dba Viking Supplynet & Fabrication Services | Santa Fe Spgs | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| SNSupply Network INC Dba Viking Supplynet & Fabrication Services | Hayward | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TITbc INC | Green Bay | WI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TCTejas Casing | Houston | TX | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| TTTejas Tubular Products | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TFTenaris Freeport | Freeport | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TATexas Arai | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TSTexas Steel Conversion INC | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TFThe Ford Meter Box Company, INC. (dowzer) | Pell City | AL | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
 Thermal Pipe Systems, INC. | Durant | OK | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TTThe Tapco Tube Company | Kansas City | MO | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TGThomas G. Gallagher, INC. | Andover | MA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TATi Automotive | Cartersville | GA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TATi Automotive Systems, LLC | Cartersville | GA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| T4Tmb 440ae, INC. | Elgin | IL | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TITmk Ipsco | Catoosa | OK | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TCTrade Construction Company, LLC | Baton Rouge | LA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TCTri County Tube INC | Clinton | TN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TFTrident Fire & Fabrication, LLC | Carlstadt | NJ | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TITri-State Industries of Tulsa LLC | Tulsa | OK | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TTTrojan Tube Sales and Fabrications INC. | Muncy | PA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TRT. Rowe Pipe, LLC | Ponca City | OK | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TITubes, INC | Geismar | LA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TSTube Solutions | Costa Mesa | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TMTubesource Manufacturing INC | Ferndale | MI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TCTubodyne CO | East Providence | RI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TSTubular Solutions | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TITurner Industries | Pasadena | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| TITurner Industries Group Paris Plant | Paris | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| UPUlrich Process Piping, LLC | Greensboro | NC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| UPUltra Premium Oilfield Services | Odessa | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| UPUnderground Products, Inc. | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| UCUnited Casing Tubular Services Sheldon Road | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| USUnited Sprinkler INC | Rush City | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| USUnited States Pipe and Foundry Company, LLC | — | IL | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| UTUnited Tube Bending | Montclair | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| UOUsdol Osha | Cleveland | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| ULUse Lawrence South | Lawrence | KS | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| UPUS Pipe | Union City | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| UPUS Pipe and Fabrication | Marysville | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| UPU.s. Pipe Fabrication | San Antonio | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| UPUS Pipe Fabrication | Fontana | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| VTVallourec Tube Alloy | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| VPVan Pelt Industries, LLC | Grand Haven | MI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
