| ALAllegheny Ludlum Llc/bagdad | Leechburg | PA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| ASAll Star Sheet Metal | Tyler | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| AUAmerican Utility Processing, LLC | Akron | OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| AFAndy's Fabrication | Terrell | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| AMArcelor Mittal Steel | Conshohocken | PA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| AMArc Mechanical Contractors INC | Bradford | VT | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| AMArlington Metals CORP | Sawyer | MI | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
 Arnold Magnetic Technologies | Marengo | IL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| AIASRD Industries, LLC and Allied Steel Rule Dies Inc | Indianapolis | IN | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| AAAssa Abloy Service Centers, Inc., | Birmingham | AL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| ASAthens Steel | Athens | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| ASAtkore Steel Components | Coconutcreek | FL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| ATAtlas Tube, INC. - Blytheville Plant | Blytheville | AR | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| BMBarclay Machine, INC. | Salem | OH | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| BRBay Rivers Industrial | Toano | VA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| BPBaytown Plate Division | Baytown | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| BCBender Ccp INC | Corona | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| BSB.K. Stainless, Inc | Miami | FL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| BCBlue Collar Products by Design LLC | San Antonio | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| BRBolsinger Rebar INC | Cascade | IA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| BMBralco Metals | Garland | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| BSBrodhead Steel Prod | South San Francisco | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| BRBrooklyn Rebar LLC | Brooklyn | NY | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CSCalbody Steel Forming LLC | Benicia | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CECaliber Elements, LLC | Homosassa | FL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CECalifornia Electric Steel | Angels Camp | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CSCalstrip Steel CORP | Los Angeles | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CSCamblin Steel INC | Oakland | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CSCamblin Steel INC | Coarsegold | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CMCambridge Metals & Plastics | Cambridge | MN | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CPCampbell's Portable Buildings | Palestine | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CECapital Exteriors INC. | Bismarck | ND | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CTCardinal Tool Companyy | Forney | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CSCargill Steel & Wire (closed) | Nashville | TN | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CICdp Industries | Latrobe | PA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CSCertified Steel Company, INC. | Hamilton | NJ | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CSChamplain Specialty Metals, INC. | Benton Harbor | MI | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CCCherry Construction Systems | Palestine | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CDClark Dietrich Building Systems | Baytown | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CSClay Smith Engineering INC | Buena Park | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CSClingan Steel, INC. | Des Plaines | IL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CICoast Industrial Supply CO INC | Cerritos | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CSCol-fin Specialty Steel Ii LLC | New Brighton | PA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CSColorado Steel & Wire CO | Loveland | CO | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CMCommercial Metals Company Rebar | San Antonio | TX | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CMConstruction Materials, INC. | Montgomery | AL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CSContinental Steel Works, INC. | Butte | MT | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CMCoronado Manufacturing LLC | Sun Valley | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CMCosmos Manufacturing, INC. | South Chicago Heights | IL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CBCustom Bilt Metals LLC | Whittier | CA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
