| AWAlcoa Wenatchee LLC | Malaga | WA | Primary Metal Manufacturing331312 | 1-19 | ◐ LIKELY ACTIVE |
| ALAllegheny Ludlum Corporation | Waterbury | CT | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| ARAllegheny Rail Products/ Lb Foster CO | Niles | OH | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| APAlleima Precision Tube LLC | Scottdale | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| ARAll-met Recycling INC | Anaheim | CA | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| AEAltec Extrusions | Jeffersonville | IN | Primary Metal Manufacturing331315 | — | ◐ LIKELY ACTIVE |
| AVAlumicore Ventures Llc/monessen | Monessen | PA | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| ADAluminum Dynamics - Columbus | Columbus | MS | Primary Metal Manufacturing331313 | 500+ | ◐ LIKELY ACTIVE |
| AFAluminum Foundry of Wisconsin, INC. | Lannon | WI | Primary Metal Manufacturing331520 | — | ◐ LIKELY ACTIVE |
| ARAluminum Recovery Technologies | Kendallville | IN | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| AIAlx Industries | Pasadena | TX | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| AIAmbrit Industries | Glendale | CA | Primary Metal Manufacturing331521 | 20-99 | ◐ LIKELY ACTIVE |
| AIAmerica1 Industries LLC | Leighton | AL | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
American Aluminum Extrusion HQ (Roscoe IL) | Roscoe | IL | Primary Metal Manufacturing331316 | 100-499 | ◐ LIKELY ACTIVE |
| ACAmerican Casting Company | Hollister | CA | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
| ASAmerican Safety Tread | Pelham | AL | Primary Metal Manufacturing331313 | — | ◐ LIKELY ACTIVE |
| ASAmerican Stainless & Alloy Products | Darlington | SC | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
American Wire and Cable Co | Olmsted Twp | OH | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| ACAmerimax Coated Products | Helena | AR | Primary Metal Manufacturing331315 | — | ◐ LIKELY ACTIVE |
| AMAmeriti Manufacturing Company | Detroit | MI | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| AVAmg Vanadium LLC | Zanesville | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| ARAmsted Rail | Groveport | OH | Primary Metal Manufacturing331513 | 100-499 | ◐ LIKELY ACTIVE |
| ADAndy's Deli & Mikolajczk | Chicago | IL | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| ASAnvil Steel | Gardena | CA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| AEApel Extrusions | Phoenix | AZ | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
| AEApel Extrusions INC | Coburg | OR | Primary Metal Manufacturing331314 | 100-499 | ◐ LIKELY ACTIVE |
| AAApex Aluminum Die Casting Co., INC. | Piqua | OH | Primary Metal Manufacturing331521 | 20-99 | ◐ LIKELY ACTIVE |
| ATApex Tool Group - Sumter | Sumter | SC | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| ACAppalachian Cast Products | Abingdon | VA | Primary Metal Manufacturing331521 | — | ◐ LIKELY ACTIVE |
| AArcelormittal | Blasdell | NY | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| ACArcelormittal Calvert, LLC | Calvert | AL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| AMArcelor Mittal/indiana Harbor Long Carbon | East Chicago | IN | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| ALArcelormittal Laplace LLC | Harriman | TN | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| ACArenac Casting INC | Standish | MI | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| AAArkansas Aluminum Alloys | Hot Springs National Park | AR | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
Armstrong Mold Corporation Foundry | East Syracuse | NY | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
| AMArtsons Manufacturing Company, Inc. | South Gate | CA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| AIAsarco Incorporated/amarillo Copper Refinery | Amarillo | TX | Primary Metal Manufacturing331410 | — | ◐ LIKELY ACTIVE |
| ASA Stucki bda Birmingham Rail | Bessemer | AL | Primary Metal Manufacturing331222 | 1-19 | ◐ LIKELY ACTIVE |
| ATAtchison Tubular Manufacturing | Atchison | KS | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| AHAti Huntsville Operations, a Division of Ati Specialty Alloys & Components, LLC | Huntsville | AL | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
ATI Specialty Materials - Monroe | Monroe | NC | Primary Metal Manufacturing331491 | 500+ | ◐ LIKELY ACTIVE |
| ASAttala Steel Industries LLC | Kosciusko | MS | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| AIAugusta Iron & Steel Works, INC. | Martinez | GA | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| AIAura Ii INC | Milwaukee | WI | Primary Metal Manufacturing331410 | — | ◐ LIKELY ACTIVE |
| ARAurubis Richmond LLC | Augusta | GA | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| APAxis Pipe and Tube, INC. | Bryan | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| BFBadger Foundry Company | Winona | MN | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| BSBae Systems | Sealy | TX | Primary Metal Manufacturing331410 | — | ◐ LIKELY ACTIVE |
| BSBae Systems Land & Armaments L.p. | Anniston | AL | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |