 Quality Aluminum Forge INC | Long Beach | CA | — | ◇ UNVERIFIED |
| QEQuality Engineered Steels, LLC Dba Wv Cold Drawn | Point Pleasant | WV | — | ◇ UNVERIFIED |
 Quality Metal Works | Plant City | FL | — | ◇ UNVERIFIED |
| RGRaiden Group Site Development | Atwood | KS | — | ◇ UNVERIFIED |
| RSRegional Steel CORP | Fontana | CA | — | ◇ UNVERIFIED |
| RTReliable Temps, INC. | Palmer | MA | — | ◇ UNVERIFIED |
| RWReliable Welding, INC. | Tampa | FL | — | ◇ UNVERIFIED |
| RERepublic Engineered Products, LLC - Gary Dunes Plant | Gary | IN | — | ◇ UNVERIFIED |
| RERepublic Engineered Steel, INC | Naperville | IL | — | ◇ UNVERIFIED |
| RTRepublic Technologies International LLC | Harvey | IL | — | ◇ UNVERIFIED |
| RCRidgeline Capital Holding Corp. | Waltham | MA | — | ◇ UNVERIFIED |
| RMRoler Machine Shop Incorporated | Brownsville | TX | — | ◇ UNVERIFIED |
| RFRoll Former Corporation | Chalfont | PA | — | ◇ UNVERIFIED |
| RTRolling, Tank and Fabrication Inc | Eighty Four | PA | — | ◇ UNVERIFIED |
| RIRyerson INC. | Eldridge | IA | — | ◇ UNVERIFIED |
| SSSamuel Steel Pickling CO * | Cleveland | OH | — | ◇ UNVERIFIED |
| SHSamuel-whittar Holdings INC | Troy | MI | — | ◇ UNVERIFIED |
| SRSa Recycling LLC | Missouri | MO | — | ◇ UNVERIFIED |
| SBSbc Building Systems, LLC. | Ambridge | PA | — | ◇ UNVERIFIED |
| SESet Enterprises INC | New Boston | MI | — | ◇ UNVERIFIED |
| SWSeverstal Wheeling/allenport | Allenport | PA | — | ◇ UNVERIFIED |
| SFSherwood Friction Materials | Detroit | MI | — | ◇ UNVERIFIED |
| SSShoreline Steel Supply INC | New Haven | MI | — | ◇ UNVERIFIED |
| SASierra Alloys Company | Azusa | CA | — | ◇ UNVERIFIED |
| SWSkipper Wright INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| SSSolid Steel Sales, INC. | Acworth | GA | — | ◇ UNVERIFIED |
| SMSquires Metal Fabrication INC. | Tyler | TX | — | ◇ UNVERIFIED |
| SMSsab Minnesota INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| SDStainless Designs Inc.cn | Fort Collins | CO | — | ◇ UNVERIFIED |
| SSStainless Steel Concepts | Amarillo | TX | — | ◇ UNVERIFIED |
| SSStainless Steel Fabrications | West Milford | NJ | — | ◇ UNVERIFIED |
| STStandard Tool and Manufacturing | Grain Valley | MO | — | ◇ UNVERIFIED |
| STStandard Tube Sales CORP of Ne | Perth Amboy | NJ | — | ◇ 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 |
| SFSteel Fab | Lebanon | VA | — | ◇ UNVERIFIED |
| SMSteel Mill Components INC | Warren | MI | — | ◇ UNVERIFIED |
| SSSteel Services, INC. | Weirton | WV | — | ◇ UNVERIFIED |
| SSSteel Surplus, INC. | Houston | TX | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Blytheville | AR | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Murfreesboro | TN | — | ◇ UNVERIFIED |
| STSteel Technologies LLC | Greensburg | IN | — | ◇ 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 |
| 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 |
| SOSunrise of Carmichael | Carmichael | CA | — | ◇ UNVERIFIED |
| SFSuperb Fabricating LLC | South Lyon | MI | — | ◇ UNVERIFIED |
| SFSuperb Fabricating LLC | New Hudson | MI | — | ◇ UNVERIFIED |
| SMSupreme Manufacutring, INC. | Stoneboro | PA | — | ◇ UNVERIFIED |
| SSSvp Steel LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| SSSwedish Steel | Pittsburgh | PA | — | ◇ UNVERIFIED |
| TETayson Enterprises Holding LLC | Whitney Point | NY | — | ◇ UNVERIFIED |
| TPTheis Precision Steel CORP | Bristol | CT | — | ◇ 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. | Trussville | AL | — | ◇ UNVERIFIED |
| TFThompson Fabricated Steel Products, INC. | Center Point | AL | — | ◇ UNVERIFIED |
| TSThompson Steel CO INC | Franklin Park | IL | — | ◇ UNVERIFIED |
| TTimet | Vallejo | CA | — | ◇ UNVERIFIED |
| TKTmk-ipsco Koppel Tubulars, LLC | Ambridge | PA | — | ◇ UNVERIFIED |
| TToolmax | Latrobe | PA | — | ◇ UNVERIFIED |
| TMTpc Metals LLC | Bryan | OH | — | ◇ UNVERIFIED |
| TMTpc Metals, LLC | Canton | OH | — | ◇ UNVERIFIED |
| TMTrinity Machne & Fabrication | Palestine | TX | — | ◇ UNVERIFIED |
| TSTri-state Shearing and Bending INC. | Brooklyn | NY | — | ◇ UNVERIFIED |
| TST S a Manufacturing | Omaha | NE | — | ◇ UNVERIFIED |
| TPTsk Partners, INC. | Erie | PA | — | ◇ UNVERIFIED |
| UUlbrich | Pico Rivera | CA | — | ◇ UNVERIFIED |
| UPUltra Play Systems, INC | Red Bud | IL | — | ◇ UNVERIFIED |
| UPUnited Power Generation INC | Riverside | CA | — | ◇ UNVERIFIED |
| UPUniversal Pipe & Steel Supply, INC | Fort Myers | FL | — | ◇ UNVERIFIED |
| UFUS Fabrication of East Texas Incorporated | Tyler | TX | — | ◇ UNVERIFIED |
| USUS Steel Gary Complex | Gary | IN | — | ◇ UNVERIFIED |
| UTU.s. Tubular Products | Mckeesport | PA | — | ◇ UNVERIFIED |
| VPValley Plating and Fabricating | Green Bay | WI | — | ◇ UNVERIFIED |
 Wakefield Thermal Solutions INC | Fall River | MA | — | ◇ UNVERIFIED |
| WTWallner Tooling/expac, INC. | Kennesaw | GA | — | ◇ UNVERIFIED |
| WCWendt Corporation | Buffalo | NY | — | ◇ UNVERIFIED |
| WEWest End Fabricators Incorporated | Richmond | VA | — | ◇ UNVERIFIED |
| WMWestern Metal Enterprises, INC. | Montebello | CA | — | ◇ UNVERIFIED |
| WHWest Homestead Engineering & Machine | Pittsburgh | PA | — | ◇ UNVERIFIED |
| WSWolf Steel U.s.a. INC. | Crittenden | KY | — | ◇ UNVERIFIED |
| WAWorthington Armstron/wave - Malvern | Malvern | PA | — | ◇ UNVERIFIED |
| WIWorthington Industries | Cleveland | OH | — | ◇ UNVERIFIED |
| WIWorthington Industries - Cleveland | Cuyahoga Heights | OH | — | ◇ UNVERIFIED |
| WSWorthington Samuel Coil Processing, LLC. (1318007554) | Cleveland | OH | — | ◇ UNVERIFIED |
| WSWorthington Steel | Decatur | AL | — | ◇ UNVERIFIED |
| WSWorthington Steel Company of Decatur, L.l.c. | Decatur | AL | — | ◇ UNVERIFIED |
