| STSem Tec INC | Worcester | — | ◇ UNVERIFIED |
| SSSouthbridge Sheet Metal | Southbridge | — | ◇ UNVERIFIED |
| SIStanley-parker INC Stanley Tools Worcester Plant | Worcester | — | ◇ UNVERIFIED |
| SUSwissturn USA INC | Oxford | — | ◇ UNVERIFIED |
| TITorwel Industries | Worcester | — | ◇ UNVERIFIED |
| TNTyrolit North America Incorporated | Westborough, Town of | — | ◇ UNVERIFIED |
| WEWheelabrator Energy Systems | Sturbridge | — | ◇ UNVERIFIED |
| WHWireway Husky CORP | Sterling | — | ◇ UNVERIFIED |
| WTWorcester Tool & Stamping CO | Leicester | — | ◇ UNVERIFIED |
| WMWright Machine CORP | Worcester | — | ◇ UNVERIFIED |
| WCWyman-gordon CO | Worcester | — | ◇ UNVERIFIED |
| CGCSI Group | Westborough | 20–99 | ◐ LIKELY ACTIVE |
| DFD&t Fasteners INC. | Worcester | — | ◐ LIKELY ACTIVE |
| GSGeneral Sheetmetal Company, Inc. | Auburn | 1–19 | ◐ LIKELY ACTIVE |
| HIHugard Inc. | Westborough | 20–99 | ◐ LIKELY ACTIVE |
| ITIndustrial Technologies Group ITG Precision Engineering | Uxbridge | 20–99 | ◐ LIKELY ACTIVE |
| LBLine Bore Industries, INC. | Oxford | — | ◐ LIKELY ACTIVE |
| LBLutco Bearings | Worcester | 20–99 | ◐ LIKELY ACTIVE |
| MHMillbury Heat Treat Plant | Millbury | 20–99 | ◐ LIKELY ACTIVE |
| NENew England Fabricated Metals, Inc. | Leominster | 20–99 | ◐ LIKELY ACTIVE |
| NENew England Wire Products Inc - Nashua St | Leominster | 1–19 | ◐ LIKELY ACTIVE |
| NENew England Wire Products - Scott Dr | Leominster | 20–99 | ◐ LIKELY ACTIVE |
| PCPortance CORP. | Fitchburg | — | ◐ LIKELY ACTIVE |
| PVPortland Valve LLC | Warren | — | ◐ LIKELY ACTIVE |
| SSturbridge | Sturbridge | 20–99 | ◐ LIKELY ACTIVE |
| TFTims Fabricators Inc | Fitchburg | 20–99 | ◐ LIKELY ACTIVE |
| VFValmet Flow Control USA Inc | Shrewsbury | 100–499 | ◐ LIKELY ACTIVE |
| WGWeyland Group LLC DBA Phillips Precision Boylston Location | Boylston | 20–99 | ◐ LIKELY ACTIVE |
| WGWyman Gordon Worcester | Worcester | 100–499 | ◐ LIKELY ACTIVE |
| ZCZmetra Clear Span Structures | Webster | — | ◇ UNVERIFIED |
| 2B200 Bartlett St Property | Northborough | — | ◇ UNVERIFIED |
| 3A325 Authority Drive | Fitchburg | — | ◇ UNVERIFIED |
| APAction Precision Machining | Leominster | — | ◇ UNVERIFIED |
| ASAmerican Superconductor | Devens | — | ◇ UNVERIFIED |
| AMA.p. Machine Company, INC | Templeton | — | ◇ UNVERIFIED |
| APAtlantic Precision Sheet Metal LLC | Clinton | — | ◇ UNVERIFIED |
| BAB and B Machining | Hubbardston | — | ◇ UNVERIFIED |
| BSBarker Steel, LLC | Milford | — | ◇ UNVERIFIED |
| BOBlack Oxide Company, LLC | Worcester | — | ◇ UNVERIFIED |
| BVBlackstone Valley Machining LLC | Mendon | — | ◇ UNVERIFIED |
| BSBonner Sheet Metal CORP. | Auburn | — | ◇ UNVERIFIED |
| BEBriscon Electric | Auburn | — | ◇ UNVERIFIED |
| BABullard Abrasive Products | Westborough | — | ◇ UNVERIFIED |
| CPCantara Property | Southbridge | — | ◇ UNVERIFIED |
| CFConsolidated Fabricators | Auburn | — | ◇ UNVERIFIED |
| ETEagle Traffic Control Systems | Clinton | — | ◇ UNVERIFIED |
| EHEastern Heating & Sheet Metal | Milford | — | ◇ UNVERIFIED |
| EDEdco Drilling and Honing INC | Webster | — | ◇ UNVERIFIED |
| EPElement Precision LLC | Southbridge | — | ◇ UNVERIFIED |
| ECEnvirocraft Corporation | Leominster | — | ◇ UNVERIFIED |