| CPCvs Pharmacy 0810 | Leominster | MA | Plastics and Rubber Products Manufacturing326212 | — | ◇ UNVERIFIED |
| CPCvs Pharmacy 1845 | Wilmington | MA | Machinery Manufacturing333315 | — | ◇ UNVERIFIED |
| CCCybex Cardiovascular Products Manufacturing Plant | Medway | MA | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| CICytec Industries | Springfield | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| DEDalton Electric Heating CO. | Ipswich | MA | Machinery Manufacturing333994 | — | ◇ UNVERIFIED |
| DTDanaher Tool Group | Springfield | MA | Fabricated Metal Product Manufacturing332212 | — | ◇ UNVERIFIED |
| DCDarcy CO | Holyoke | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DGData Guide Cable CORP | Gardner | MA | Primary Metal Manufacturing331421 | — | ◇ UNVERIFIED |
| DCDauphinais Concrete INC | Charlton | MA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| DGDb Gurney CO | Whitman | MA | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| DCDean Column Incorporated | Fitchburg | MA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| DPDecorated Products CO | Westfield | MA | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| DMDeluxe Manufacturing CORP | Townsend | MA | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| DIDesign-mark Industries | Wareham | MA | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| DCDff CORP | Agawam | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| DPDielectric Polymers-adhesive Applications | Holyoke | MA | Paper Manufacturing322220 | — | ◇ UNVERIFIED |
| D1Digital 128 First Avenue LLC | Needham | MA | Computer and Electronic Product Manufacturing334210 | — | ◇ UNVERIFIED |
| DEDigital Equipment | Westfield | MA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
| DEDigital Equipment Company | Hudson | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| DCDisston CO | Deerfield | MA | Fabricated Metal Product Manufacturing332213 | — | ◇ UNVERIFIED |
| DTDisston Tools | South Deerfield | MA | Fabricated Metal Product Manufacturing332212 | — | ◇ UNVERIFIED |
 Doble Engineering Company | Watertown | MA | Computer and Electronic Product Manufacturing334515 | — | ◇ UNVERIFIED |
| DIDoranco INC | North Attleboro | MA | Machinery Manufacturing333998 | — | ◇ UNVERIFIED |
| DPDrt Power Systems - Agawam Facility | Agawam | MA | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| DDuralectra-chn | Natick | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DDDurasol Drug & Chemical | Amesbury | MA | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| DMDurham Manufacturing CO | Springfield | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| DFDuro Finishing Plant 2 | Fall River | MA | Textile Mills313310 | — | ◇ UNVERIFIED |
| DTDuro Textile Printers | Fall River | MA | Textile Mills313310 | — | ◇ UNVERIFIED |
| DTDuro Textiles LLC | Fall River | MA | Textile Mills313310 | — | ◇ UNVERIFIED |
| DTDuro Textiles LLC | Fall River, City of | MA | Textile Mills313312 | — | ◇ UNVERIFIED |
| DCDw Clark Company Incorported | East Bridgewater | MA | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| DIDyetex INC | Haverhill | MA | Textile Mills313312 | — | ◇ UNVERIFIED |
| DRDynamics Research CORP | Wilmington | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| ESEagle Stainless Tube and Fabrication INC | Franklin | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| ECEast Coast Induction Incorporated | Brockton | MA | Machinery Manufacturing333994 | — | ◇ UNVERIFIED |
| ECEastern Cast Hardware CO INC | West Springfield | MA | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| ECEastern Chem Lac | Malden | MA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| EEEastern Etching & Manufacturing | Chicopee | MA | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| EMEastern Machine & Design | Hanson | MA | Machinery Manufacturing333998 | — | ◇ UNVERIFIED |
| EPEastern Process Company | Hingham | MA | Chemical Manufacturing325510 | — | ◇ UNVERIFIED |
| ETEastern Tool & Stamping CO INC | Saugus | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| EFEast Freetown Auto Salvage LLC | Freetown | MA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| EIEast Island Community Works | Lawrence, City of | MA | Apparel Manufacturing315222 | — | ◇ UNVERIFIED |
| EIEastprint INC | North Andover | MA | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| EGEaton Global Hose | Ludlow | MA | Plastics and Rubber Products Manufacturing326220 | — | ◇ UNVERIFIED |
| ELEaw Loud Technologies | Northbridge | MA | Wood Product Manufacturing321918 | — | ◇ UNVERIFIED |
| ECEcc Corporation | Holden (jefferson) | MA | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| EHEc Hilliard Corporation | Franklin | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| ECE Ciardi Company Incorporated | Chelsea, City of | MA | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
