| UEUmicore Electrical Materials USA INC | Attleboro | MA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| AFAtlas Founders INC | Agawam | MA | Primary Metal Manufacturing331522 | — | ◇ UNVERIFIED |
| LSLanoco Specialty Wire Products | Sutton | MA | Primary Metal Manufacturing331222 | 1-19 | ◇ UNVERIFIED |
| PWPrecision Wire Shapes | West Brookfield | MA | Primary Metal Manufacturing331222 | 1-19 | ◇ UNVERIFIED |
| ACAfc Cable Systems | New Bedford | MA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| BCBasf Catalysts | Plainville | MA | Primary Metal Manufacturing331419 | — | ◇ UNVERIFIED |
| BCBelcher (advanced Cast Products) | Easton | MA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CICastronics Incorporated | Medway | MA | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| CCChamplain Cable Berkshire Electric Div | Northampton (leeds) | MA | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| CFCharlette Foundry | Blackstone | MA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CPConnectivity Products Bsc Division | Leominster | MA | Primary Metal Manufacturing331422 | — | ◇ UNVERIFIED |
| CWCubit Wire & Cable | Holyoke | MA | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| DGData Guide Cable CORP | Gardner | MA | Primary Metal Manufacturing331421 | — | ◇ UNVERIFIED |
| DGDb Gurney CO | Whitman | MA | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| DCDw Clark Company Incorported | East Bridgewater | MA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| ECE Ciardi Company Incorporated | Chelsea, City of | MA | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| EAEdson Anbar Foundry | Taunton | MA | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| ECEms Cup LLC | Attleboro | MA | Primary Metal Manufacturing331421 | — | ◇ UNVERIFIED |
| GWGavitt Wire & Cable | Brookfield | MA | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| GCGeneral Cable | Taunton | MA | Primary Metal Manufacturing331422 | — | ◇ UNVERIFIED |
| GCGeneral Cable Corporation | South Hadley | MA | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| GCGeneral Cable Industries | Franklin | MA | Primary Metal Manufacturing331421 | — | ◇ UNVERIFIED |
| GMGeorge Meade Foundry | Bedford | MA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| GSGkn Sinter Metals INC | Worcester | MA | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| GFGraniteville Foundry | Westford | MA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GFG&w Foundry | Rehoboth | MA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| HCHba Cast Products Company | Springfield | MA | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| KEKirk Eastern | Gardner | MA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| LGLeach & Garner CO | North Attleboro | MA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| LFLebaron Foundry INC | Brockton, City of | MA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| LWLeoni Wire INC | Chicopee | MA | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| LMLockheed Martin Sippican | Marion | MA | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| MCMadison Cable CORP | Worcester | MA | Primary Metal Manufacturing331422 | — | ◇ UNVERIFIED |
| MHMaster Halco INC | Canton | MA | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| NNNational Northeast CORP | Lawrence | MA | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| NENew England Smelting Works INC | West Springfield | MA | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| PIProfiles INC | Palmer | MA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
 Quality Metal Finishing INC | Chelsea | MA | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| RCRefinity CORP | Lynn | MA | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| RCRevere Copper Products Plant - Closed | New Bedford | MA | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| SKSafety Kleen CORP | Canton | MA | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| SFSpecialty Foundry | Brockton | MA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| SStarmet | Concord | MA | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| SLStern Leach Company | Attleboro | MA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| SCSummit Casting INC | Foxborough | MA | Primary Metal Manufacturing331312 | — | ◇ UNVERIFIED |
| TBTitcomb Brothers Manufacturing, Incorporated | Westport | MA | Primary Metal Manufacturing331221 | 20-99 | ◇ UNVERIFIED |
| UCUsm CORP | Haverhill | MA | Primary Metal Manufacturing331411 | — | ◇ UNVERIFIED |
 Wakefield Thermal Solutions INC | Fall River | MA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CICastechnologies INC | Attleboro | MA | Primary Metal Manufacturing331528 | 1-19 | ◇ UNVERIFIED |
| 7O70 Old Canal LLC | Lowell | MA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
