| AMArtsons Manufacturing CO. | Cudahy | CA | — | ◇ UNVERIFIED |
| ACArtwire Creations, INC. | Pennsauken | NJ | — | ◇ UNVERIFIED |
| AIASRD Industries, LLC and Allied Steel Rule Dies Inc | Indianapolis | IN | — | ◇ UNVERIFIED |
| AAAssa Abloy Service Centers, Inc., | Birmingham | AL | — | ◇ UNVERIFIED |
| ASAthens Steel | Athens | TX | — | ◇ UNVERIFIED |
| ABAti Bozeman INC | Bozeman | MT | — | ◇ UNVERIFIED |
| ASAtkore Steel Components | Coconut Creek | FL | — | ◇ UNVERIFIED |
| ASAtlantic Steel, INC | Longwood | FL | — | ◇ UNVERIFIED |
| ASAtlas Steel & Wire Gerdau Ameristeel US INC | Harahan | LA | — | ◇ UNVERIFIED |
| ATAtlas Tube, INC. - Blytheville Plant | Blytheville | AR | — | ◇ UNVERIFIED |
| AMAtwood Metals LLC | Bethel | MN | — | ◇ UNVERIFIED |
| ALAutobend Laser Steel Rule Dies, INC. | Chula Vista | CA | — | ◇ UNVERIFIED |
| ABAutomotive Body Parts, INC. | Cartersville | GA | — | ◇ UNVERIFIED |
| BIBarcel/cdt INC | Irvine | CA | — | ◇ UNVERIFIED |
| BMBarclay Machine, INC. | Salem | OH | — | ◇ UNVERIFIED |
| BOBar-Fab of Florida, Inc | Clearwater | FL | — | ◇ UNVERIFIED |
| BSBarker Steel Construction, INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| BHBaron Hr | Pittsburg | CA | — | ◇ UNVERIFIED |
| BPBar Processing CORP - Monroe | Monroe | MI | — | ◇ UNVERIFIED |
| BBBarrett Buisness Services INC | Gardena | CA | — | ◇ UNVERIFIED |
| BSBayou Steel Mill Plant - Laplace Steel Mill | Laplace | LA | — | ◇ UNVERIFIED |
| BRBay Rivers Industrial | Toano | VA | — | ◇ UNVERIFIED |
| BPBaytown Plate Division | Baytown | TX | — | ◇ UNVERIFIED |
| BWBdm Warren Steel Operations, LLC (0278000463) | Warren | OH | — | ◇ UNVERIFIED |
| BCBeaver Creek Cabinets, LLC | Holton | MI | — | ◇ UNVERIFIED |
| BFBeaver Falls Machine Shop | Beaver Falls | PA | — | ◇ UNVERIFIED |
| BCBekaert Corp/hanover Twp | Wilkes Barre | PA | — | ◇ UNVERIFIED |
| BCBekaert Corporation | Fairlawn | OH | — | ◇ UNVERIFIED |
| BCBekaert Corporation | Exeter | PA | — | ◇ UNVERIFIED |
| BCBekaert Corporation | Shelbyville | KY | — | ◇ UNVERIFIED |
| BIBekaert INC | Clarksdale | MS | — | ◇ UNVERIFIED |
| BCBender Ccp INC | Corona | CA | — | ◇ UNVERIFIED |
| BFBenicia Fabrication and Machines, INC. | Benicia | CA | — | ◇ UNVERIFIED |
| BMBenzie Manufacturing LLC | Frankfort | MI | — | ◇ UNVERIFIED |
| BSBerg Spiral Pipe Corporation | Mobile | AL | — | ◇ UNVERIFIED |
| BSBigbee Steel & Tank CO | Manheim | PA | — | ◇ UNVERIFIED |
| BSBirmingham Steel CORP | Bourbonnais | IL | — | ◇ UNVERIFIED |
| BSB.K. Stainless, Inc | Miami | FL | — | ◇ UNVERIFIED |
| BCBlackhawk Cutting Services, Inc. | Beloit | WI | — | ◇ UNVERIFIED |
| BIBlastech, INC. | Gary | IN | — | ◇ UNVERIFIED |
| BCBlue Collar Products by Design LLC | San Antonio | TX | — | ◇ UNVERIFIED |
| BRBlue Ridge Metals Corporation | Fletcher | NC | — | ◇ UNVERIFIED |
| BPBlytheville Plate Works | Blytheville | AR | — | ◇ UNVERIFIED |
 Boldmark Steel Industry, LLC | Baltimore | MD | — | ◇ UNVERIFIED |
| BRBolsinger Rebar INC | Cascade | IA | — | ◇ UNVERIFIED |
| BKBoone Kenton Machine, LLC | Erlanger | KY | — | ◇ UNVERIFIED |
| BSBradford Steel Co., INC. | East Freetown | MA | — | ◇ UNVERIFIED |
| BMBralco Metals | Garland | TX | — | ◇ UNVERIFIED |
| BEBrillouin Energy CORP. | Emeryville | CA | — | ◇ UNVERIFIED |
| BSBrodhead Steel Prod | South San Francisco | CA | — | ◇ UNVERIFIED |
| BRBrooklyn Rebar LLC | Brooklyn | NY | — | ◇ UNVERIFIED |
| BIBrothers Ironworks Co, Sarkis Tatarian | Burbank | CA | — | ◇ UNVERIFIED |
| BIBrown Industries, INC. | Dalton | GA | — | ◇ UNVERIFIED |
| BEBrunton Enterprises Inc,plas Tal Mfg CO | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| BSBudd Site | Philadelphia | PA | — | ◇ UNVERIFIED |
| BCBury Companies, Inc. | Rogers | MN | — | ◇ UNVERIFIED |
| CSCalbody Steel Forming LLC | Benicia | CA | — | ◇ UNVERIFIED |
| CACaledonian Alloys | Huntington | WV | — | ◇ UNVERIFIED |
| CECaliber Elements, LLC | Homosassa | FL | — | ◇ UNVERIFIED |
| CECalifornia Electric Steel | Angels Camp | CA | — | ◇ UNVERIFIED |
| CECalifornia Expanded Metal Products Company | Pittsburg | CA | — | ◇ UNVERIFIED |
| CSCalifornia Steel Industries INC | Fontana | CA | — | ◇ UNVERIFIED |
| CSCalstrip Steel CORP | Los Angeles | CA | — | ◇ UNVERIFIED |
| CSCalstrip Steel Corporation | Mira Loma | CA | — | ◇ UNVERIFIED |
| CSCalvert Steel LLC - Portable Plant | Ghent | KY | — | ◇ UNVERIFIED |
| CWCalvert Wire & Cable Corporation | Canton | OH | — | ◇ UNVERIFIED |
| CSCamblin Steel INC | Coarsegold | CA | — | ◇ UNVERIFIED |
| CSCamblin Steel INC | Oakland | CA | — | ◇ UNVERIFIED |
| CMCambridge Metals & Plastics | Cambridge | MN | — | ◇ UNVERIFIED |
| CMCamelot Metals | Blaine | MN | — | ◇ UNVERIFIED |
| CUCamfil Usa, INC. | Crystal Lake | IL | — | ◇ UNVERIFIED |
| CPCampbell's Portable Buildings | Palestine | TX | — | ◇ UNVERIFIED |
| CSCanam Steel Corporation | Buckeye | AZ | — | ◇ UNVERIFIED |
| CECapital Exteriors INC. | Bismarck | ND | — | ◇ UNVERIFIED |
| CECapitol Engineering & Manufacturing CO | Harvey | IL | — | ◇ UNVERIFIED |
| CMCar-anth Manufacturing INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| CTCardinal Tool Companyy | Forney | TX | — | ◇ UNVERIFIED |
| CSCargill Steel & Wire (closed) | Nashville | TN | — | ◇ UNVERIFIED |
| CPCarpenter Powder Products INC | Bridgeville | PA | — | ◇ UNVERIFIED |
 Carpenter Technology | Worcester | MA | — | ◇ UNVERIFIED |
| Carpenter Technology Dba Mb Calram LLC | Camarillo | CA | — | ◇ UNVERIFIED |
| Carpenter Technology-tube Div | Union | NJ | — | ◇ UNVERIFIED |
| CMCasara Modern | Huntington Beach | CA | — | ◇ UNVERIFIED |
| CSCascade Steel Rolling Mills, INC. | Mcminnville | OR | — | ◇ UNVERIFIED |
| CWCavert Wire INC. | Rural Hall | NC | — | ◇ UNVERIFIED |
| CMCbr Machinists INC | Laurel | MS | — | ◇ UNVERIFIED |
| CICdp Industries | Latrobe | PA | — | ◇ UNVERIFIED |
| CECenterline Engineering | Comstock Park | MI | — | ◇ UNVERIFIED |
| CSCentral Steel & Wire | University Park | IL | — | ◇ UNVERIFIED |
| CWCentral Wire - Dumas Division | Dumas | AR | — | ◇ UNVERIFIED |
| CICentury International Arms | West Palm Beach | FL | — | ◇ UNVERIFIED |
| CTCentury Tube LLC | Madison | IN | — | ◇ UNVERIFIED |
| CICeradyne INC 3m Company | Irvine | CA | — | ◇ UNVERIFIED |
| CSCertified Steel Company, INC. | Hamilton | NJ | — | ◇ UNVERIFIED |
| CEC E Steel Group | Spring | TX | — | ◇ UNVERIFIED |
| CSCGAR Stainless, LLC | Eastlake | OH | — | ◇ UNVERIFIED |
| CSChamplain Specialty Metals, INC. | Benton Harbor | MI | — | ◇ UNVERIFIED |
| CMCharter Manufacturing Company, INC. | Cleveland | OH | — | ◇ UNVERIFIED |
| CSCharter Steel Cleveland INC (1318007658) | Cleveland | OH | — | ◇ UNVERIFIED |
| CMCherokee Manufacturing | South Saint Paul | MN | — | ◇ UNVERIFIED |
