| BTBerk Tek Llc/new Holland | New Holland | PA | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
| BMBerry Metal CO | Zelienople | PA | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| BCBesser CO | Sioux City | IA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| BQBesser Quinn Machine & Foundry | Boone | IA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| BRBlue Ridge Pressure Castings | Lehighton | PA | Primary Metal Manufacturing331523 | — | ◐ LIKELY ACTIVE |
| BHBohn Hydro Aluminum | Holland | MI | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
| BMBombardier Motor Corporation of America - Spruce Pine | Spruce Pine | NC | Primary Metal Manufacturing331524 | — | ◐ LIKELY ACTIVE |
| BLBon L Manufacturing CO | Newnan | GA | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| BABradken Atlas | Tacoma | WA | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |
| BEBradken Engineered Products - Saint Joseph Facility | Atchison | KS | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| BABraeburn Alloy Steel Rolling Mill Fac | Lower Burrell | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| BTBrass Tech INC | Santa Ana | CA | Primary Metal Manufacturing331529 | — | ◐ LIKELY ACTIVE |
| BUBrawo USA | Laurens | SC | Primary Metal Manufacturing331421 | — | ◐ LIKELY ACTIVE |
| BMBremer Manufacturing | Elkhart Lake | WI | Primary Metal Manufacturing331310 | — | ◐ LIKELY ACTIVE |
| BIBrewton Iron Works INC | Brewton | AL | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| BMBrost Mansfield LLC Dba Brost Foundry | Mansfield | OH | Primary Metal Manufacturing331524 | — | ◐ LIKELY ACTIVE |
| BMBuffalo Metal Casting | Buffalo | NY | Primary Metal Manufacturing331419 | — | ◐ LIKELY ACTIVE |
Bunting Bearings CORP | Portage | MI | Primary Metal Manufacturing331529 | — | ◐ LIKELY ACTIVE |
Bunting Bearings LLC | Mansfield | OH | Primary Metal Manufacturing331525 | — | ◐ LIKELY ACTIVE |
| BPBurnstein Precision Casting | Abbeville | SC | Primary Metal Manufacturing331423 | — | ◐ LIKELY ACTIVE |
| CACardinal Aluminum CO | Louisville | KY | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
Carley Foundry INC | Blaine | MN | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
Carpenter Technology CORP | Tanner | AL | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
Carpenter Technology CORP - Athens South Facility | Tanner | AL | Primary Metal Manufacturing331111 | — | ◐ LIKELY ACTIVE |
| CDCascade Die Casting Mid-state | Grand Rapids | MI | Primary Metal Manufacturing331522 | — | ◐ LIKELY ACTIVE |
| CBCasper Brass Foundry | Mills | WY | Primary Metal Manufacturing331523 | — | ◐ LIKELY ACTIVE |
| CTCasting Technologies Company-michigan Casting Ctr | Fruitport | MI | Primary Metal Manufacturing331524 | — | ◐ LIKELY ACTIVE |
| CCCatalina Cylinders | Hampton | VA | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
| CCCentral Castings CORP | Anniston | AL | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| CWCentral Wire Dumas | Dumas | AR | Primary Metal Manufacturing331222 | — | ◐ LIKELY ACTIVE |
| CFCentury Foundry INC | Muskegon Hts | MI | Primary Metal Manufacturing331524 | — | ◐ LIKELY ACTIVE |
| CFCerro Flow Products LLC | Sauget | IL | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| CMCharter Manufacturing CO INC | Woodstock | IL | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| CMCharter Manufacturing Company, INC. (1318171623) | Cuyahoga Heights | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| CSCharter Steel INC | Rising Sun | OH | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| CFChicago Faucets-milwaukee Plant | Milwaukee | WI | Primary Metal Manufacturing331520 | — | ◐ LIKELY ACTIVE |
| CKChrysler Kokomo Casting Plant | Kokomo | IN | Primary Metal Manufacturing331521 | — | ◐ LIKELY ACTIVE |
| CPCitation Precision | Rancho Cucamonga | CA | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
| CFClaremore Faclty | Claremore | OK | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| CBClendenin Brothers | Baltimore | MD | Primary Metal Manufacturing331319 | — | ◐ LIKELY ACTIVE |
| CMClimax Molybdenum-henderson Mill | Parshall | CO | Primary Metal Manufacturing331410 | — | ◐ LIKELY ACTIVE |
| CVClow Valve CO - Foundry | Oskaloosa | IA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| CWClow Water Systems Company | Coshocton | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| CSCmc Steel - New Jersey Facility | Sayreville | NJ | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| CFCoastal Foundry CO | Houston | TX | Primary Metal Manufacturing331524 | — | ◐ LIKELY ACTIVE |
| CWColonial Wire & Cable of New Jersey | Edison | NJ | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| CCCol-pump Company, INC. (0215010001) | Columbiana | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| CICommscope INC - Catawba Plant | Catawba | NC | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| CICommscope INC - Claremont Nc Facility | Claremont | NC | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| CCComtran CORP | Attleboro | MA | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |