| 1T105355 - T-b Tube Company Incorporated | Gary | IN | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| 9M94782 - M - N Structures INC | Winsted | MN | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| 9F96402 - Fraser Steel Company | Albertville | MN | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| 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 |
| ARAbington Reldan Metals Fairless Hills Fac | Fairless Hills | PA | Primary Metal Manufacturing331410 | 100-499 | ◐ LIKELY ACTIVE |
| ADAble Die Casting CORP | Schiller Park | IL | Primary Metal Manufacturing331521 | 20-99 | ◐ LIKELY ACTIVE |
| AAccumetrics | Royersford | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| ASAccurate Specialties INC | Waukesha | WI | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| AEAccuride Erie Lp/erie Forge Plt | Erie | PA | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| ASAcs Steel Co., LLC | Tulsa | OK | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| AGAction Group INC | Blacklick | OH | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| ADAdvance Die Cast LLC | Milwaukee | WI | Primary Metal Manufacturing331310 | 20-99 | ◐ LIKELY ACTIVE |
| AMAdvanced Magnesium Alloys CORP (amacor) | Anderson | IN | Primary Metal Manufacturing331492 | 20-99 | ◐ LIKELY ACTIVE |
| ASAdvanced Steel Technology | Rome | GA | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| AMAero Manufacturing CORP | Beverly | MA | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| AIAgra Industries INC | Merrill | WI | Primary Metal Manufacturing331200 | 20-99 | ◐ LIKELY ACTIVE |
| AWAhresty Wilmington CORP | Wilmington | OH | Primary Metal Manufacturing331315 | 500+ | ◐ LIKELY ACTIVE |
| AMAirguide Manufacturing LLC | Hialeah | FL | Primary Metal Manufacturing331319 | 20-99 | ◐ LIKELY ACTIVE |
| ABAkron Brass CO | Wooster | OH | Primary Metal Manufacturing331529 | 100-499 | ◐ LIKELY ACTIVE |
| ASAk Steel Rockport Works | Rockport | IN | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| AWAlan Wire CO | Sikeston | MO | Primary Metal Manufacturing331420 | 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 |
| ARAlloys Resources | Albertville | AL | Primary Metal Manufacturing331513 | 1-19 | ◐ 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 |
| AAl-rec | Millwood | WV | Primary Metal Manufacturing331314 | 20-99 | ◐ 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 |
| ABAmerican Bronze Foundry INC. | Sanford | FL | Primary Metal Manufacturing331529 | 1-19 | ◐ LIKELY ACTIVE |
| AHAmerican Highway | Kankakee | IL | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| ARAmsted Rail | Kansas City | KS | Primary Metal Manufacturing331513 | 100-499 | ◐ LIKELY ACTIVE |
| ABAnchor Brake Shoe CO | West Chicago | IL | Primary Metal Manufacturing331511 | 20-99 | ◐ 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 |
Arch Enterprises, INC | Mexico | MO | Primary Metal Manufacturing331314 | — | ◐ 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 |
| AMArmor Metal Group | Mason | OH | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
Asc Engineered Solutions Llc/columbia Fka Anvil | Columbia | PA | Primary Metal Manufacturing331511 | 500+ | ◐ 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 |
| APAxis Pipe and Tube, INC. | Bryan | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ 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 |