| 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 |
| SISpringfield Iron Works INC | Chicopee | 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 |
| TNTechalloy Northampton Wire Plant - Closed | Northampton | MA | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| TBThomas & Betts CORP | Hyde Park | MA | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| UCUsm CORP | Haverhill | MA | Primary Metal Manufacturing331411 | — | ◇ UNVERIFIED |
 Wakefield Thermal Solutions INC | Fall River | MA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| WCWhitman Casting INC | Whitman | MA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| WGWyman Gordon Company | Millbury | MA | Primary Metal Manufacturing331314 | — | ◇ UNVERIFIED |
| GFGeneral Flash CORP | Lexington | MA | Primary Metal Manufacturing331410 | — | ◐ LIKELY ACTIVE |
| NINN, Inc. Palmer | Palmer | MA | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
 Phoenix Tailings Burlington | Burlington | MA | Primary Metal Manufacturing331410 | 20-99 | ◐ LIKELY ACTIVE |
| PGPrysmian Group Specialty Cables LLC | Taunton | MA | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| 7O70 Old Canal LLC | Lowell | MA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| ACAlloy Castings CO | East Bridgewater | MA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| ABAti Billerica Operations | Billerica | MA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| BPBermer Precision Products | Oxford | MA | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| BSBradford Steel Co., INC. | East Freetown | MA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CECarlysle Engineering INC | Jamaica Plain | MA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
 Carpenter Technology | Worcester | MA | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| CICastronics, INC | Mendon | MA | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| CAChicopee Alloys INC | Chicopee | MA | Primary Metal Manufacturing331000 | — | ◇ UNVERIFIED |
| CSConsolidated Smelting & Refining | Sutton | MA | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| EBEaston Brass & Aluminum | Easton | MA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| ETExtrusion Technology | Randolph | MA | Primary Metal Manufacturing331316 | — | ◇ UNVERIFIED |
| FGF&L Goodall Corp. | Wilmington | MA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| IEIbc Emc | Wilmington | MA | Primary Metal Manufacturing331529 | — | ◇ UNVERIFIED |
| JCJaquith Carbide Corp. | Groveland | MA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| JBJJM Boiler Works, Inc. | Westfield | MA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
 Kw Steel Structures, LLC | Quincy | MA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| MMMantua Manufacturing Company | Stoughton | MA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
 Metalor Technologies USA | N Attleboro | MA | Primary Metal Manufacturing331419 | — | ◇ UNVERIFIED |
| MCMiw Corporation | Fall River | MA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| MVMystic Valley Foundry | Somerville | MA | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| NLNanoal LLC | Ashland | MA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| NINrc INC | Needham | MA | Primary Metal Manufacturing331419 | — | ◇ UNVERIFIED |
| PMParker Metals | Worcester | MA | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| RTReliable Temps, INC. | Palmer | MA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| RCRidgeline Capital Holding Corp. | Waltham | MA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| RHRydemore Heavy Duty Truck Parts, Inc. | Fitchburg | MA | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| SASpecialty Aluminum Incorporated | Revere | MA | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| SSStoughton Steel | Hanover | MA | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| SEStrom Engineering Corporation | New Bedford | MA | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| TNTremont Nail Factory Site | Wareham | MA | Primary Metal Manufacturing331491 | — | ◇ UNVERIFIED |
| USUnited Site Services Springfield Ma | Indian Orchard | MA | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
