| ABAti Bozeman INC | Bozeman | MT | — | ◇ UNVERIFIED |
| ASAtkore Steel Components | Coconut Creek | FL | — | ◇ UNVERIFIED |
| ASAtlantic Steel, INC | Longwood | FL | — | ◇ UNVERIFIED |
| ATAtlas Tube, INC. - Blytheville Plant | Blytheville | AR | — | ◇ UNVERIFIED |
| AMAtwood Metals LLC | Bethel | MN | — | ◇ UNVERIFIED |
| ABAutomotive Body Parts, INC. | Cartersville | GA | — | ◇ 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 |
| 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 |
| BSBrodhead Steel Prod | South San Francisco | CA | — | ◇ UNVERIFIED |
| BRBrooklyn Rebar LLC | Brooklyn | NY | — | ◇ UNVERIFIED |
| BIBrothers Ironworks Co, Sarkis Tatarian | Burbank | CA | — | ◇ 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 |
| CSCamblin Steel INC | Oakland | CA | — | ◇ UNVERIFIED |
| CSCamblin Steel INC | Coarsegold | CA | — | ◇ UNVERIFIED |
| CMCambridge Metals & Plastics | Cambridge | MN | — | ◇ UNVERIFIED |
| CMCamelot Metals | Blaine | MN | — | ◇ 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 |
| 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 |
| CMCbr Machinists INC | Laurel | MS | — | ◇ UNVERIFIED |
| CICdp Industries | Latrobe | PA | — | ◇ UNVERIFIED |
| CECenterline Engineering | Comstock Park | MI | — | ◇ 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 |
| CCCherry Construction Systems | Palestine | TX | — | ◇ UNVERIFIED |
| CPChris Plating | Northbrook | IL | — | ◇ UNVERIFIED |
| CSClarion Sintered Metals | Ridgway | PA | — | ◇ UNVERIFIED |
| CDClark Dietrich Building Systems | Baytown | TX | — | ◇ UNVERIFIED |
| CIClark Industrial INC. | Missoula | MT | — | ◇ UNVERIFIED |
| CSClay Smith Engineering INC | Buena Park | CA | — | ◇ UNVERIFIED |
| CMClearfield Metal Tech/clearfield Plt | Clearfield | PA | — | ◇ UNVERIFIED |
| CCCleveland Cliffs Steel Corporation - Ashland | Ashland | KY | — | ◇ UNVERIFIED |
| CSClingan Steel, INC. | Des Plaines | IL | — | ◇ UNVERIFIED |
| CRC&l Repair/fabrication LLC | Martins Ferry | OH | — | ◇ UNVERIFIED |
| CCCmc Construction Services | Columbia | SC | — | ◇ UNVERIFIED |
| CJCmc Joist and Deck | South Plainfield | NJ | — | ◇ UNVERIFIED |
| CJCmc Joist & Deck | Starke | FL | — | ◇ UNVERIFIED |
| CNCmc New Jersey | Sayreville | NJ | — | ◇ UNVERIFIED |
| CRCmc Rebar - Ca - Santa Fe Springs | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| CSCmc Steel Us, LLC - Martinsburg | Martinsburg | WV | — | ◇ UNVERIFIED |
| CMCoastal Manufacturing | Watsonville | CA | — | ◇ UNVERIFIED |
| CICoast Industrial Supply CO INC | Cerritos | CA | — | ◇ UNVERIFIED |
| CSCol-fin Specialty Steel Ii LLC | New Brighton | PA | — | ◇ UNVERIFIED |
| CSColorado Steel & Wire CO | Loveland | CO | — | ◇ UNVERIFIED |
| CMCombined Metals CORP | Bellwood | IL | — | ◇ UNVERIFIED |
| CCometals | Cayce | SC | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Etiwanda | CA | — | ◇ UNVERIFIED |
