| AMAllston Metalcraft CO. | Bellingham | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| APAlmeida Precision Machining Inc. | Walpole | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| AAAmerican Architectural Iron | Boston | MA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| AEAmerican Electroplating Company | Lawrence | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| AEAmerican Engineered Components INC | Boston (brighton) | MA | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| AMAmerican Metalcraft Co, INC | East Weymouth | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| ASAmerican Superconductor | Devens | MA | Fabricated Metal Product Manufacturing332112 | — | ◇ UNVERIFIED |
| AMAmherst Machine CO. | North Amherst | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| APAms Precision Machining INC | Brockton | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| ASAnvil Steel Engineering Inc. | Taunton | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| ASAplus Screw Machine Products LLC | Bedford | MA | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| AMA.p. Machine Company, INC | Templeton | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| APApplied Plastics CO. INC | Norwood | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
 Arc Technologies LLC | Amesbury | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| AEAriston Engraving & Machine Co, INC. | Woburn | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| ALArmset LLC | Middleton | MA | Fabricated Metal Product Manufacturing332216 | — | ◇ UNVERIFIED |
| BAB and B Machining | Hubbardston | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| BIBaron Industries | Woburn | MA | Fabricated Metal Product Manufacturing332321 | — | ◇ UNVERIFIED |
| BCBarry Controls | Watertown | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| BSBay Steel Co., INC. | Halifax | MA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| BSBeacon Sales Acquisition, INC | West Bridgewater | MA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| BTBehning Tool | Hanover | MA | Fabricated Metal Product Manufacturing332721 | — | ◇ UNVERIFIED |
| BPBell's Powder Coating, Inc. | North Attleboro | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| BPBenchmark Precision Products LLC | West Newbury | MA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| BPBenco Precision Machining INC | Gloucester | MA | Fabricated Metal Product Manufacturing332119 | — | ◇ UNVERIFIED |
| BCBenjamin C Lavoie | Buzzards Bay | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BMBerkshire Manufacturing Corporation | Southwick | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| BMBetter Maintenance Sheet Metal CORP. | Newburyport | MA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| BOBlack Oxide Company, LLC | Worcester | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| BVBlackstone Valley Machining LLC | Mendon | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| BSBonner Sheet Metal CORP. | Auburn | MA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| BABoston Automatic Sprinkler Fabrication, INC. | Rockland | MA | Fabricated Metal Product Manufacturing332913 | — | ◇ UNVERIFIED |
| BLBoston Lasers Precision Cut, LLC | Amesbury | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| BRBoston Renaissance Charter School | Boston (hyde Park) | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BUBoston University-department of Physics | Boston | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| BFBoundary Fence & Railing Systems, INC. | Marlborough | MA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| BABps Automated Manufacturing Solutions | Kingston | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| BLBrewer's Ledge Incorporated | Randolph | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| BEBriscon Electric | Auburn | MA | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| BEBroken Edge Deburring, INC. | West Springfield | MA | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| BMBrothers Machining CORP | Mansfield | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| BSBryant Sheet Metal, INC. | Hanover | MA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| BEBuilding Envelope Systems | Plainville | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BABullard Abrasive Products | Westborough | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| CPCambridge Press | Somerville | MA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| CPCantara Property | Southbridge | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| CCCape Cod Cupola Co, INC. | Dartmouth | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| CFCarl Fisher Co., INC. | Springfield | MA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| CCC & C Fabricating, Inc. | Beverly | MA | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
 Centerline Machine Company, INC. | Beverly | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
