| SGSummit Global Contractors, INC. | Vidor | TX | — | ◇ UNVERIFIED |
| SISummit Iron Works Group INC | Gardena | CA | — | ◇ UNVERIFIED |
| SSSummit Steel Corporation | Chagrin Falls | OH | — | ◇ UNVERIFIED |
| SMSuperior Metal Fabricators, INC. | Las Vegas | NV | — | ◇ UNVERIFIED |
| SSSusini Specialty Steels, INC. | Natrona Heights | PA | — | ◇ UNVERIFIED |
| STSwepco Tube LLC | Clifton | NJ | — | ◇ UNVERIFIED |
| SSSxp Schulz Xtruded Products LLC | Hernando | MS | — | ◇ UNVERIFIED |
| TSTampa Steel & Supply | Tampa | FL | — | ◇ UNVERIFIED |
| TITasco Iron & Metal, LLC | Lake Havasu City | AZ | — | ◇ UNVERIFIED |
| TMTaylor Metal Works & Pipe Co., INC. | Port Arthur | TX | — | ◇ UNVERIFIED |
| TQTeam Quality Services, INC. | Panama City | FL | — | ◇ UNVERIFIED |
| TTTech Tube Inc/upper Merion | King of Prussia | PA | — | ◇ UNVERIFIED |
| TTTeda Tpco America Corporation | Gregory | TX | — | ◇ UNVERIFIED |
| TCTenaris Coiled Tubes - Seacat | Houston | TX | — | ◇ UNVERIFIED |
| TMTenaris Mesa | Houston | TX | — | ◇ UNVERIFIED |
| TSTetra Steel Corporation | Montclair | NJ | — | ◇ UNVERIFIED |
| TSTetra Steel Corporation | Bronx | NY | — | ◇ UNVERIFIED |
| TSTexas Specialty Steel, LLC | San Antonio | TX | — | ◇ UNVERIFIED |
| TTTexas Tubular Products | Lone Star | TX | — | ◇ UNVERIFIED |
| TPThompson Pipe Group Pressure | Grand Prairie | TX | — | ◇ UNVERIFIED |
| TEThormax Enterprises, LLC | Columbus | IN | — | ◇ UNVERIFIED |
| TEThormax Enterprises, LLC | Columbus | IN | — | ◇ UNVERIFIED |
| TCThriller Car Company, Inc. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| TATi Automotive (formerly Bundy Corportation) | Warren | MI | — | ◇ UNVERIFIED |
| TATi Automotive Systems | Auburn Hills | MI | — | ◇ UNVERIFIED |
| TFTi Fluid Systems | Tallassee | AL | — | ◇ UNVERIFIED |
| TGTi Group Automotive System, LLC | Cynthiana | KY | — | ◇ UNVERIFIED |
| TGTi Group Automotive Systems LLC | Auburn Hills | MI | — | ◇ UNVERIFIED |
| TMTomco Machining INC | Dayton | OH | — | ◇ UNVERIFIED |
| TTTotten Tubes INC - Santee | Santee | CA | — | ◇ UNVERIFIED |
| TMTransMachine MTT Inc. | Aurora | IL | — | ◇ UNVERIFIED |
| TTTrent Tube | Carrollton | GA | — | ◇ UNVERIFIED |
| TPTricon Piping System, INC. | Canastota | NY | — | ◇ UNVERIFIED |
| TPTrinity Products, INC. | Saint Charles | MO | — | ◇ UNVERIFIED |
 Trinity Stainless INC. | Nixa | MO | — | ◇ UNVERIFIED |
| TSTri-state Steel of Nevada LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| TVTri Valley Iron INC. | Palisades | NY | — | ◇ UNVERIFIED |
| TSTryad Service CORP. | Shafter | CA | — | ◇ UNVERIFIED |
| TUTubacex US Holding INC / Tubacex US Holding INC | Durant | OK | — | ◇ UNVERIFIED |
| TBTube Bending Specialists & Machinery, LLC | Hayward | CA | — | ◇ UNVERIFIED |
| TNTubetech North America, INC. | E Palestine | OH | — | ◇ UNVERIFIED |
| TSTuboscope Sheldon South Inspection Facility | Channelview | TX | — | ◇ UNVERIFIED |
| TPTubular Perforating Manufacturing of Conroe, LTD. | Conroe | TX | — | ◇ UNVERIFIED |
| TPTubular Processing Houston Operations | Houston | TX | — | ◇ UNVERIFIED |
| TPTubular Products Company, INC. | Birmingham | AL | — | ◇ UNVERIFIED |
| TSTubular Steel, INC. | Hazelwood | MO | — | ◇ UNVERIFIED |
| TSTubular Structures International, L.l.c | Mc Gregor | TX | — | ◇ UNVERIFIED |
| TPTurning Point Custom Machine LLC | De Pere | WI | — | ◇ UNVERIFIED |
| TMTy M. Wright | Portland | OR | — | ◇ UNVERIFIED |
| UHUltimate Highway Sales, INC. | Palos Heights | IL | — | ◇ UNVERIFIED |
