| JMJames Monroe Wire and Cable C | South Lancaster | MA | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| JCJapenamelac Corporation | Chelmsford | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| JJJohn J Adams Die CORP | Worcester | MA | Fabricated Metal Product Manufacturing332212 | — | ◇ UNVERIFIED |
| KAKevins Automotive | Lowell | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| KRKrh Rolls INC | Orange | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| LGLamson & Goodnow Mfg | Buckland | MA | Fabricated Metal Product Manufacturing332211 | — | ◇ UNVERIFIED |
 Leggett & Platt Webster Spring Div | Oxford | MA | Fabricated Metal Product Manufacturing332612 | — | ◇ UNVERIFIED |
| LLightolier | Wilmington | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| LFLightolier Fall River | Fall River | MA | Fabricated Metal Product Manufacturing332112 | — | ◇ UNVERIFIED |
| LOL&j of New England | Worcester | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| LPLoren Products | Lawrence | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| LILund International | Hudson | MA | Fabricated Metal Product Manufacturing332212 | — | ◇ UNVERIFIED |
| LSLunt Silversmiths INC | Greenfield | MA | Fabricated Metal Product Manufacturing332211 | — | ◇ UNVERIFIED |
| MWMagnet Wave Products INC | Hardwick | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MCMarox CORP | Holyoke | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| MCMasse Circuit CO | Methuen | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MCMasters Corporation | Lowell | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MDMaterials Developement Corporation | Medford | MA | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| MPMatrix Products INC | Attleboro | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| MSMayhew Steel Products INC | Shelburne | MA | Fabricated Metal Product Manufacturing332212 | — | ◇ UNVERIFIED |
| MMMckinstry Metal Works INC. | Chicopee | MA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| MEMcstowe Engineering | East Bridgewater | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| MIMetalogic Industries LLC | Southbridge | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| MAModern Aluminum Anod | N Adams | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| MAModern Aluminum Anodizing | North Adams | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MTMold Tech Northeast | Chicopee | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MCMontrose Cdt | Auburn | MA | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| MCMorgan Construction (siemens) | Worcester | MA | Fabricated Metal Product Manufacturing332991 | — | ◇ UNVERIFIED |
| MIMsm Industries Incorporated | North Reading | MA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| MPMystic Plating CORP | Medford | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| NCNai Cranes LLC | Woburn | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| NVNashoba Valley Structural | Lunenburg | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| NCNew Com Metal Products CORP | Randolph | MA | Fabricated Metal Product Manufacturing332999 | 20-99 | ◇ UNVERIFIED |
| NENew England Compressor Exchan | Woburn | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| NSNichols & Stone CO | Gardner | MA | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| OCOctober CO Chemetal Division | Easthampton | MA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| OLOmega Laboratories | Rowley | MA | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| PGPan Glo | Worcester | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| PIParatronix Incorporated | Attleboro, City of | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| PMPerkins Machine CO | Warren | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| PCPioneer Consolidated | North Oxford | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| PCPrecision Coating Company Incorporated | Dedham | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
 Quality Metal Finishing INC | Chelsea | MA | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| RBReed & Barton Silver | Taunton | MA | Fabricated Metal Product Manufacturing332211 | — | ◇ UNVERIFIED |
| RNReed National CORP | Westfield | MA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| RMReflek Manufacturing INC | Fall River | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| RIRemtec INC Dba Tecmark | Norwood | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| RCRex Cut Products Incorporated | Fall River, City of | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| RPRiley Power INC | Worcester | MA | Fabricated Metal Product Manufacturing332410 | — | ◇ UNVERIFIED |
| RPRoyal Plating & Polishing INC | Pittsfield | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
