| RKRb Kendall Fee LLC | Cambridge | MA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| RBReed & Barton Silver | Taunton | MA | Fabricated Metal Product Manufacturing332211 | — | ◇ UNVERIFIED |
| RNReed National CORP | Westfield | MA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| RRReed Rico - Closed | Holden | MA | Machinery Manufacturing333513 | — | ◇ UNVERIFIED |
| RCRefinity CORP | Lynn | MA | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| RMReflek Manufacturing INC | Fall River | MA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| RGReid Graphics INC | Andover | MA | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| RIRemtec INC Dba Tecmark | Norwood | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| RTResource Technology | Berkley | MA | Miscellaneous Manufacturing339999 | — | ◇ UNVERIFIED |
| RRetrievex | Peabody | MA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| RCRevere Copper Products Plant - Closed | New Bedford | MA | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| RCRevolutionary Clinics | Fitchburg | MA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| RRevvity | Hopkinton | MA | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| RCRex Cut Products Incorporated | Fall River, City of | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| RFReynolds Food Packaging | Wakefield | MA | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| RBRiley Brothers | Bellingham | MA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| RPRiley Power INC | Worcester | MA | Fabricated Metal Product Manufacturing332410 | — | ◇ UNVERIFIED |
| RDRiverwalk Dev INC | Lawrence | MA | Textile Mills313312 | — | ◇ UNVERIFIED |
| RARivkind Associates INC | Stoughton | MA | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| RSRoad Safe Traffic Systems, Avon | Avon | MA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| RCRobbins CO the | Attleboro | MA | Miscellaneous Manufacturing339910 | — | ◇ UNVERIFIED |
| RBRochester Bituminous | Rochester | MA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| RSRockbestos Suprenant Cable | Clinton | MA | Electrical Equipment, Appliance & Component Manufacturing335929 | — | ◇ UNVERIFIED |
| RCRock-tenn Converting CO | Chicopee | MA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| RTRock Tenn Cp LLC | Wakefield | MA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| RHRodney Hunt Company | Orange | MA | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| RCRohtstein Corporation | Woburn | MA | Food Manufacturing311930 | — | ◇ UNVERIFIED |
| RMRoma Marble INC | Ludlow | MA | Plastics and Rubber Products Manufacturing326121 | — | ◇ UNVERIFIED |
| RCRosenfeld Concrete CORP | Hopedale | MA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| RDRotadyne Decorative Technologies Group | Holyoke | MA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| RCRowe Contracting CO | Malden | MA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| RIRoyal Institutional Services | Somerville | MA | Machinery Manufacturing333312 | — | ◇ UNVERIFIED |
| RPRoyal Plating & Polishing INC | Pittsfield | MA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| RDRubbair Door Incorporated | Ayer | MA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| RFRudi Foods | Chelsea | MA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| RMRugg Manufacturing Company | Greenfield | MA | Fabricated Metal Product Manufacturing332212 | — | ◇ UNVERIFIED |
| RNRuntal North America | Haverhill | MA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| SISabic Innovative Plastics | Pittsfield | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SISabic Innovative Plastics | Pittsfield | MA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SESaeilo Enterprises | Worcester, City of | MA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| SHSafc Hitech | Haverhill | MA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| SKSafety Kleen CORP | Canton | MA | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| SGSaint Gobain Containers | Milford | MA | Nonmetallic Mineral Product Manufacturing327213 | — | ◇ UNVERIFIED |
| SGSaint Gobain High Performance Materials | Northborough | MA | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| SOSalem Oil & Grease CO | Salem | MA | Chemical Manufacturing325613 | — | ◇ UNVERIFIED |
| SSSalem Suede Incorporated | Salem | MA | Textile Mills313320 | — | ◇ UNVERIFIED |
| SSSalem Suede Incorporated | Peabody | MA | Leather and Allied Product Manufacturing316110 | — | ◇ UNVERIFIED |
| SFSaloom Furniture | Gardner | MA | Wood Product Manufacturing321114 | — | ◇ UNVERIFIED |
| SCSanmina CORP | Wilmington | MA | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
| SCSanmina CORP. Tech Center East Division | Haverhill | MA | Computer and Electronic Product Manufacturing334412 | — | ◇ UNVERIFIED |
