| AIAalberts Integrated Piping System Americas | Myrtle Beach | SC | Primary Metal Manufacturing331512 | 100-499 | ◐ LIKELY ACTIVE |
| ADAallied Die Casting CO of Nc | Rutherfordton | NC | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| ASAccurate Specialties INC | Waukesha | WI | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| ASAdvanced Steel Technology | Rome | GA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| ABAkron Brass CO | Wooster | OH | Primary Metal Manufacturing331529 | 100-499 | ◐ LIKELY ACTIVE |
| AUAlcoa USA CORP. | Massena | NY | Primary Metal Manufacturing331313 | 100-499 | ◐ LIKELY ACTIVE |
| ADAlgonquin Div Rea Magnetic Wires | Guilford | CT | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| ACAlliant Castings | Winona | MN | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| AMAllied Metal CO | Chattanooga | TN | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| AAAlpha Assembly Solutions INC | Itasca | IL | Chemical Manufacturing325199 | 100-499 | ◐ LIKELY ACTIVE |
| ASAlpha Sintered Metals | Ridgway | PA | Primary Metal Manufacturing331523 | 100-499 | ◐ LIKELY ACTIVE |
| AIAmercable INC | El Dorado | AR | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| ABAmerican Bronze Corporation | Cleveland | OH | Primary Metal Manufacturing331522 | 20-99 | ◐ LIKELY ACTIVE |
| AFAmerican Foam Cast | Sylacauga | AL | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| AHAmerican Highway | Kankakee | IL | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| ABAnchor Brake Shoe CO | West Chicago | IL | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
Andrex INC | Hackettstown | NJ | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| ATApex Tool Group - Sumter | Sumter | SC | Primary Metal Manufacturing331512 | 20-99 | ◐ LIKELY ACTIVE |
| ADArconic Davenport LLC | Riverdale | IA | Primary Metal Manufacturing331314 | 500+ | ◐ LIKELY ACTIVE |
| ASArkansas Steel Associates | Newport | AR | Nonmetallic Mineral Product Manufacturing327993 | 100-499 | ◐ LIKELY ACTIVE |
| APAti Powder Metals, LLC | Oakdale | PA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| ATAtlas Tube - Blytheville | Blytheville | AR | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| ATAtlas Tube INC | Chicago | IL | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| ATAtlas Tube- Plymouth Plant | Plymouth | MI | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| AGAzz Galvanizing Peoria | Peoria | IL | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| BABadger Alloys | Milwaukee | WI | Primary Metal Manufacturing331510 | 100-499 | ◐ LIKELY ACTIVE |
| BBBailsco Blades & Castings INC. | Shreveport | LA | Primary Metal Manufacturing331521 | 20-99 | ◐ LIKELY ACTIVE |
| BMBaker Manufacturing | Evansville | WI | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| BCB & C Castings | Barberton | OH | Primary Metal Manufacturing331316 | 20-99 | ◐ LIKELY ACTIVE |
| BFBeaver Falls Tubular Products LLC | Beaver Falls | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| BVBeaver Valley Alloy Foundry CO | Monaca | PA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| BTBekaert Tire Reinforcement US Corporation | Rome | GA | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| BCBilstein Cold Rolled Steel | Bowling Green | KY | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| BTBingham & Taylor CORP. | Culpeper | VA | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| BBBlackfoot Brass | Blackfoot | ID | Primary Metal Manufacturing331529 | 20-99 | ◐ LIKELY ACTIVE |
| BCBlast Cleaning Technologies | West Allis | WI | Primary Metal Manufacturing331511 | 100-499 | ◐ LIKELY ACTIVE |
| BABoose at Cornwall INC | Lebanon | PA | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
| BMBristol Metals Limited Partnership | Bristol | TN | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| BEBriteline Extrusions INC | Summerville | SC | Primary Metal Manufacturing331316 | 20-99 | ◐ LIKELY ACTIVE |
| BWBrookfield Wire CO INC | West Brookfield | MA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| BMBull Moose Tube | Gerald | MO | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| CAC a Lawton CO | De Pere | WI | Primary Metal Manufacturing331510 | 100-499 | ◐ LIKELY ACTIVE |
| CFCalhoun Fndy CO INC | Homer | MI | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| CMCannon Muskegon CORP | Muskegon | MI | Primary Metal Manufacturing331513 | 100-499 | ◐ LIKELY ACTIVE |
| CDCascade Die Casting / Great La Kes | Sparta | MI | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| CSCasting Solutions LLC | Zanesville | OH | Primary Metal Manufacturing331111 | 100-499 | ◐ LIKELY ACTIVE |
| CACelina Aluminum Precision Tech | Celina | OH | Primary Metal Manufacturing331524 | 100-499 | ◐ LIKELY ACTIVE |
| CWCentral Wire Group | Perris | CA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| CCCentrifugal Castings | Temple | TX | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| CMCerrowire Mc Cable Plant | Hartselle | AL | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |