| CPCambridge Press | Somerville | — | ◇ UNVERIFIED |
| CPCantara Property | Southbridge | — | ◇ UNVERIFIED |
| CCCape Cod Cupola Co, INC. | Dartmouth | — | ◇ UNVERIFIED |
| CFCarl Fisher Co., INC. | Springfield | — | ◇ UNVERIFIED |
| CCC & C Fabricating, Inc. | Beverly | — | ◇ UNVERIFIED |
| CCCelestica CORP | Lowell | — | ◇ UNVERIFIED |
 Centerline Machine Company, INC. | Beverly | — | ◇ UNVERIFIED |
| CGC & G Machine | Granby | — | ◇ UNVERIFIED |
| CKChalmers & Kubeck North | Westfield | — | ◇ UNVERIFIED |
| CIC.i.l. INC. | Lawrence | — | ◇ UNVERIFIED |
| CICircor International INC. | Burlington | — | ◇ UNVERIFIED |
| CIClearmotion INC | Billerica | — | ◇ UNVERIFIED |
| CBCliflex Bellows Corporation | Boston | — | ◇ UNVERIFIED |
| CICoastal Industries, INC | Haverhill | — | ◇ UNVERIFIED |
| CRComplete Reconditioning Specialist | Fairhaven | — | ◇ UNVERIFIED |
| CMConcept Manufacturing CO | Holliston | — | ◇ UNVERIFIED |
| CFConsolidated Fabricators | Auburn | — | ◇ UNVERIFIED |
| CMCreative Modeling & Die, LLC | Attleboro | — | ◇ UNVERIFIED |
| CACrocker Architectural Sheet Metal Co., INC. | Wellesley | — | ◇ UNVERIFIED |
| CICsh Industries, INC. | Plymouth | — | ◇ UNVERIFIED |
| CECunningham Engineering | Danvers | — | ◇ UNVERIFIED |
| CACustom Automotive Machine CO. | Weymouth | — | ◇ UNVERIFIED |
| DPD&B Property, LLC | Hudson | — | ◇ UNVERIFIED |
| DEDan-kar Engineering LLC | Woburn | — | ◇ UNVERIFIED |
| DRDan Ray Machine Company | Haverhill | — | ◇ UNVERIFIED |
| DFDb Finishing CO | Plympton | — | ◇ UNVERIFIED |
| DCD. Clement, INC. | Dunstable | — | ◇ UNVERIFIED |
 Dcp Spring Acquisition Company INC Hardware Products | Chelsea | — | ◇ UNVERIFIED |
| DIDds Industries INC | Fall River | — | ◇ UNVERIFIED |
| DMDecker Machine Works, INC | Ashfield | — | ◇ UNVERIFIED |
| DMDelta Machine & Tool, INC. | Palmer | — | ◇ UNVERIFIED |
| DSDesigner Sinks | Hanover | — | ◇ UNVERIFIED |
 DGG Industries, Inc. | Attleboro | — | ◇ UNVERIFIED |
| DCDilon Company Inc | Attleboro | — | ◇ UNVERIFIED |
| DMDj Machine | North Andover | — | ◇ UNVERIFIED |
| DMDraper Metals | Middleboro | — | ◇ UNVERIFIED |
| DMDraper Metals, INC. | West Bridgewater | — | ◇ UNVERIFIED |
| DPDrew's Powder Coating LLC | Pepperell | — | ◇ UNVERIFIED |
| DPDunbroze Precision LLC | Pepperell | — | ◇ UNVERIFIED |
| ETEagle Traffic Control Systems | Clinton | — | ◇ UNVERIFIED |
| EHEasco Hand Tools INC | Springfield | — | ◇ UNVERIFIED |
| EMEastbay Metal LLC | Lynn | — | ◇ UNVERIFIED |
| EHEastern Heating & Sheet Metal | Milford | — | ◇ UNVERIFIED |
| EHEastern Heating & Sheet Metal | Chicopee | — | ◇ UNVERIFIED |
| ETEastern Turning | Newburyport | — | ◇ UNVERIFIED |
| EPEasthampton Precision Manufacturing INC | Easthampton | — | ◇ UNVERIFIED |
| EDEdco Drilling and Honing INC | Webster | — | ◇ UNVERIFIED |
| EElectrostat | Randolph | — | ◇ UNVERIFIED |
| EElectroswitch | Rockland | — | ◇ UNVERIFIED |
| EPElement Precision LLC | Southbridge | — | ◇ UNVERIFIED |
