| HTHyde Tools | Southbridge | MA | Fabricated Metal Product Manufacturing332212 | — | ◇ UNVERIFIED |
| IMId Machine Incorporated | Malden | MA | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| IPIndependent Plating CO. INC. | Worcester | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| ICIndustrial Chromium | Holyoke | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| IEIndustrial Etching INC | E Longmeadow | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| IHIndustrial Heat Treating INC | Quincy | MA | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| JMJames Monroe Wire and Cable C | South Lancaster | MA | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| JCJapenamelac Corporation | Chelmsford | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| JHJ H Smith CO INC | Greenfield | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| JKJ Kittredge & Sons INC | Hudson | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| JJJohn J Adams Die CORP | Worcester | MA | Fabricated Metal Product Manufacturing332212 | — | ◇ UNVERIFIED |
| KAKevins Automotive | Lowell | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| KMKilleen Machine Tool CO | Worcester | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ 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 |
| LHLindberg Heat Treating | Boston | MA | Fabricated Metal Product Manufacturing332811 | — | ◇ 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 |
| LILutco INC | Worcester | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| MWMagnet Wave Products INC | Hardwick | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| MJMarathon Jewelry | Attleboro | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ 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 |
| MPMillenium Plating Company | Lowell | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ 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 |
| NMNash Manufacturing & Grinding Services | Springfield | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| NVNashoba Valley Structural | Lunenburg | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| NPNational Perforating CORP | Clinton | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| NENew England Compressor Exchan | Woburn | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| NSNichols & Stone CO | Gardner | MA | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| NMNorpin Mfg CO INC | Ludlow | MA | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
