| GOGe Osmonics | Westborough | MA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| AAstrazeneca | Westborough | MA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| BABullard Abrasive Products | Westborough | MA | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| CFCumberland Farms INC | Westborough | MA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| EEmc | Westborough | MA | Computer and Electronic Product Manufacturing334111 | — | ◇ UNVERIFIED |
 Fiba Technologies | Westborough | MA | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| ZTZygo Teraoptix INC | Westborough | MA | Machinery Manufacturing333314 | — | ◇ UNVERIFIED |
| ARAmazon Robotics | Westborough | MA | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| ASAmerican Superconductor | Westborough | MA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| BSBay State Gritcloth | Westborough | MA | Nonmetallic Mineral Product Manufacturing327910 | — | ◇ UNVERIFIED |
| BABullard Abrasive Products | Westborough | MA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| BRBusiness Resources, Inc. | Westborough | MA | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| CHCold Harbor Brewing Company, LLC | Westborough | MA | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| CMConcentris Manufacturing Solutions, INC. | Westborough | MA | Transportation Equipment Manufacturing336390 | — | ◇ UNVERIFIED |
| CPCorrugated Paper | Westborough | MA | Paper Manufacturing322299 | — | ◇ UNVERIFIED |
| CCytiva | Westborough | MA | Machinery Manufacturing333998 | — | ◇ UNVERIFIED |
| ECErie County Plastics Corporation | Westborough | MA | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| MWMetamagnetics Westborough | Westborough | MA | Computer and Electronic Product Manufacturing334419 | — | ◇ UNVERIFIED |
| NPNewcorr Packaging | Westborough | MA | Paper Manufacturing322130 | — | ◇ UNVERIFIED |
| OSOmni Stone Works, INC. | Westborough | MA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| RRakks | Westborough | MA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| SESave Energy Systems, Inc. | Westborough | MA | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| USUS Sports and Apparel INC | Westborough | MA | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| WPWest Park 1700 LLC | Westborough | MA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
