| ACAm/ns Calvert LLC | Calvert | AL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| AAperam | Sterling Heights | MI | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| ASAperam Stainless Services & Solutions | Sterling Heights | MI | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| ABAran Bagher | Santa Ana | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| AArcelormittal | Cleveland | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| ACArcerlormittal Cleveland LLC | Cleveland | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
 Arnold Magnetic Technologies | Marengo | IL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| ABAti Bozeman INC | Bozeman | MT | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| ASAtlantic Steel, INC | Longwood | FL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| AMAtwood Metals LLC | Bethel | MN | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| ABAutomotive Body Parts, INC. | Cartersville | GA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BOBar-Fab of Florida, Inc | Clearwater | FL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BSBarker Steel Construction, INC. | Tucson | AZ | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BWBdm Warren Steel Operations, LLC (0278000463) | Warren | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BFBenicia Fabrication and Machines, INC. | Benicia | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BSBirmingham Steel CORP | Bourbonnais | IL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BCBlackhawk Cutting Services, Inc. | Beloit | WI | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BPBlytheville Plate Works | Blytheville | AR | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
 Boldmark Steel Industry, LLC | Baltimore | MD | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BSBradford Steel Co., INC. | East Freetown | MA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BIBrothers Ironworks Co, Sarkis Tatarian | Burbank | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BEBrunton Enterprises Inc,plas Tal Mfg CO | Santa Fe Springs | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| BCBury Companies, Inc. | Rogers | MN | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CACaledonian Alloys | Huntington | WV | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CMCamelot Metals | Blaine | MN | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CSCanam Steel Corporation | Buckeye | AZ | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
 Carpenter Technology | Worcester | MA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CMCasara Modern | Huntington Beach | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CSCascade Steel Rolling Mills, INC. | Mcminnville | OR | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CECenterline Engineering | Comstock Park | MI | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CEC E Steel Group | Spring | TX | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CMCharter Manufacturing Company, INC. | Cleveland | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CIClark Industrial INC. | Missoula | MT | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CRC&l Repair/fabrication LLC | Martins Ferry | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CCCmc Construction Services | Columbia | SC | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CNCmc New Jersey | Sayreville | NJ | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CMCoastal Manufacturing | Watsonville | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CSCol-fin Specialty Steel Ii LLC | New Brighton | PA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CCometals | Cayce | SC | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Etiwanda | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CSCuenca Steel Corporation | Miami | FL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CSCustom Steel Fabricators, INC. | Columbia | TN | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| COCycling on Two Wheels, LLC | Grovetown | GA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| DRDayton Rogers Manufacturing company | Newberry | SC | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| DRDayton Rogers of Ohio, Inc. | Obetz | OH | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| DMDb Motoring Group, INC. | Miami | FL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| DDD & D Machine Works, INC. | Orem | UT | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| DIDelos Industries Inc. | Payson | UT | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| DMDexter Marine Products LLC | San Marcos | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| DSDfp Systems | El Cajon | CA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
