| SDStainless Designs Inc.cn | Fort Collins | CO | — | ◇ UNVERIFIED |
| SSStainless Steel Concepts | Amarillo | TX | — | ◇ UNVERIFIED |
| SSStainless Steel Fabrications | West Milford | NJ | — | ◇ UNVERIFIED |
| SSStainless Steel Tanks, INC. | Saint Mary | MO | — | ◇ UNVERIFIED |
| STStandard Tool and Manufacturing | Grain Valley | MO | — | ◇ UNVERIFIED |
| STStandard Tube Sales CORP of Ne | Perth Amboy | NJ | — | ◇ UNVERIFIED |
| SSState Steel of South Dakota, INC. | Sioux Falls | SD | — | ◇ UNVERIFIED |
| SSStation Steel Services, Inc | Milford | PA | — | ◇ UNVERIFIED |
| SEStatoil - Eisenbarth Pad | Clarington | OH | — | ◇ UNVERIFIED |
| SISteelcase INC | Athens | AL | — | ◇ UNVERIFIED |
| SCSteel Ceilings INC | Johnstown | OH | — | ◇ UNVERIFIED |
| SUSteelco U.S.A; Great Pacific Elbow Company; Deluxe Building Products | Chino | CA | — | ◇ UNVERIFIED |
| SCSteel Craft Rolling Door | New York | NY | — | ◇ UNVERIFIED |
| SDSteel Dynamics, INC. | Lake City | FL | — | ◇ UNVERIFIED |
| SDSteel Dynamics, INC. (sdi), Structural | Columbia City | IN | — | ◇ UNVERIFIED |
| SDSteel Dynamics, INC. - Swva, INC. | Huntington | WV | — | ◇ UNVERIFIED |
| SFSteel Fab | Lebanon | VA | — | ◇ UNVERIFIED |
| SMSteel Mill Components INC | Warren | MI | — | ◇ UNVERIFIED |
| SRSteel Resources Unlimited, INC. | Miami | FL | — | ◇ UNVERIFIED |
| SRSteel Resources Unlimited, INC. | Miramar | FL | — | ◇ UNVERIFIED |
| SSSteel Services, INC. | Weirton | WV | — | ◇ UNVERIFIED |
| SSSteel Surplus, INC. | Houston | TX | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Greensburg | IN | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Murfreesboro | TN | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Blytheville | AR | — | ◇ UNVERIFIED |
| STSteel Technology & Design, INC. | Lakeland | FL | — | ◇ UNVERIFIED |
| SVSteel Ventures | North Kansas City | MO | — | ◇ UNVERIFIED |
| SVSteel Ventures, LLC | North Kansas City | MO | — | ◇ UNVERIFIED |
| SWSteel Warehouse CO LLC | South Bend | IN | — | ◇ UNVERIFIED |
| SWSteel Warehouse of Tennessee LLC | Chattanooga | TN | — | ◇ UNVERIFIED |
| SSSterling Stainless Tube CORP | Englewood | CO | — | ◇ UNVERIFIED |
| SSSterling Steel CO LLC | Sterling | IL | — | ◇ UNVERIFIED |
| SSSterling Steel Fabrications INC | West Palm Beach | FL | — | ◇ UNVERIFIED |
| SFStewart Felty | Williamsburg | VA | — | ◇ UNVERIFIED |
| STS & T International, INC. | Orange | TX | — | ◇ UNVERIFIED |
| SCStone City Ironworks INC | Bedford | IN | — | ◇ UNVERIFIED |
| SIStrand Industries | Riverside | CA | — | ◇ UNVERIFIED |
| SIStripco, INC. | Mishawaka | IN | — | ◇ UNVERIFIED |
| SEStrom Engineering Corporation | New Bedford | MA | — | ◇ UNVERIFIED |
| SBStudco Building Systems | Webster | NY | — | ◇ UNVERIFIED |
| SPSuncoast Projects, LLC | Groveland | FL | — | ◇ UNVERIFIED |
| SGSuncoke Gpi LLC | Granite City | IL | — | ◇ UNVERIFIED |
| SOSunrise of Carmichael | Carmichael | CA | — | ◇ UNVERIFIED |
| SFSuperb Fabricating LLC | New Hudson | MI | — | ◇ UNVERIFIED |
| SFSuperb Fabricating LLC | South Lyon | MI | — | ◇ UNVERIFIED |
| SMSupreme Manufacutring, INC. | Stoneboro | PA | — | ◇ UNVERIFIED |
| SSSvp Steel LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| SSSwedish Steel | Pittsburgh | PA | — | ◇ UNVERIFIED |
| SISymmco Inc/sykesville | Sykesville | PA | — | ◇ UNVERIFIED |
| TTamco | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| TETayson Enterprises Holding LLC | Whitney Point | NY | — | ◇ UNVERIFIED |
| TCTejas Casing | Houston | TX | — | ◇ UNVERIFIED |
| TATeledyne Adams | Union | NJ | — | ◇ UNVERIFIED |
| TSTexas Steel Tech LLC | Weatherford | TX | — | ◇ UNVERIFIED |
| TWTexas Wheel Repair Express 360 LLC | Dallas | TX | — | ◇ UNVERIFIED |
| T2The 291 Cpw Condominium | New York | NY | — | ◇ UNVERIFIED |
| TCThe Carlstar Group LLC | Ontario | CA | — | ◇ UNVERIFIED |
| THThe Herrick Corporation | San Bernardino | CA | — | ◇ UNVERIFIED |
| TIThe Iron Works LTD. | Des Moines | IA | — | ◇ UNVERIFIED |
| TPTheis Precision Steel CORP | Bristol | CT | — | ◇ UNVERIFIED |
| TTThe Timken Company | Canton | OH | — | ◇ UNVERIFIED |
| TTThe Timken Steel Corporation | Canton | OH | — | ◇ UNVERIFIED |
| TTThe Timkensteel Corporation | Canton | OH | — | ◇ UNVERIFIED |
| TWThe Wilmington Iron and Metal Company, Inc. | Wilmington | OH | — | ◇ UNVERIFIED |
 The Worthington Steel Company (1318178701) | Cuyahoga Heights | OH | — | ◇ UNVERIFIED |
| TSThomas Steel Strip Corporation Tata Steel Plating | Warren | OH | — | ◇ UNVERIFIED |
| TFThompson Fabricated Steel Products, INC. | Center Point | AL | — | ◇ UNVERIFIED |
| TFThompson Fabricated Steel Products, INC. | Trussville | AL | — | ◇ UNVERIFIED |
| TSThompson Steel CO INC | Franklin Park | IL | — | ◇ UNVERIFIED |
| TTimet | Vallejo | CA | — | ◇ UNVERIFIED |
| TCTimkensteel CORP - Faircrest Steel Plant | Canton | OH | — | ◇ UNVERIFIED |
| TCTimkensteel CORP - Harrison Steel Plant | Canton | OH | — | ◇ UNVERIFIED |
| TCTimkensteel Corporation | Canton | OH | — | ◇ UNVERIFIED |
| TWTi Wire | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| TITmk Ipsco | Brookfield | OH | — | ◇ UNVERIFIED |
| TKTmk-ipsco Koppel Tubulars, LLC | Ambridge | PA | — | ◇ UNVERIFIED |
| TWTodd's Welding INC. | Fruita | CO | — | ◇ UNVERIFIED |
| TToolmax | Latrobe | PA | — | ◇ UNVERIFIED |
| TMTpc Metals LLC | Bryan | OH | — | ◇ UNVERIFIED |
| TMTpc Metals, LLC | Canton | OH | — | ◇ UNVERIFIED |
| TFTrans-tex Fabricating CO. INC. | San Antonio | TX | — | ◇ UNVERIFIED |
| TMTrinity Machne & Fabrication | Palestine | TX | — | ◇ UNVERIFIED |
| TPTrinity Products, LLC | O Fallon | MO | — | ◇ UNVERIFIED |
| TSTri-state Shearing and Bending INC. | Brooklyn | NY | — | ◇ UNVERIFIED |
 Truenorth Steel | Billings | MT | — | ◇ UNVERIFIED |
| TST S a Manufacturing | Omaha | NE | — | ◇ UNVERIFIED |
| TPTsk Partners, INC. | Erie | PA | — | ◇ UNVERIFIED |
| TCTube City Ims LLC | Portage | IN | — | ◇ UNVERIFIED |
| TETvek Enterprises, INC. | Mingo Junction | OH | — | ◇ UNVERIFIED |
| UUlbrich | Pico Rivera | CA | — | ◇ UNVERIFIED |
| UPUltra Play Systems, INC | Red Bud | IL | — | ◇ UNVERIFIED |
| UUUltra USA INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| UAUnited Alloys INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| UPUnited Power Generation INC | Riverside | CA | — | ◇ UNVERIFIED |
| USUnited States Steel Corporation | Worcester | MA | — | ◇ UNVERIFIED |
| UTUnited Tube Corparation | Medina | OH | — | ◇ UNVERIFIED |
| URUnitrac Railroad Materials INC. | Knoxville | TN | — | ◇ UNVERIFIED |
| UMUniversal Machine Company INC | Paramount | CA | — | ◇ UNVERIFIED |
| UPUniversal Pipe & Steel Supply, INC | Fort Myers | FL | — | ◇ UNVERIFIED |
 Universal Stainless & Alloy Products INC. | North Jackson | OH | — | ◇ UNVERIFIED |
