 Flow Grinding CORP. | Woburn | MA | Machinery Manufacturing333517 | 1-19 | ● ACTIVE |
| OIOpticraft, INC. | Woburn | MA | Machinery Manufacturing333310 | — | ● ACTIVE |
 Amf Optical Solutions, LLC | Woburn | MA | Machinery Manufacturing333310 | — | ● ACTIVE |
 Mascon, INC. | Woburn | MA | Machinery Manufacturing333248 | — | ● ACTIVE |
 Strahl LLC | Woburn | MA | Machinery Manufacturing333310 | — | ● ACTIVE |
 Ultrasonium INC | Woburn | MA | Machinery Manufacturing333248 | — | ● ACTIVE |
| BCBoston Centerless INC | Woburn | MA | Machinery Manufacturing333319 | — | ◐ LIKELY ACTIVE |
| HCHartech CORP | Woburn | MA | Machinery Manufacturing333912 | — | ◐ LIKELY ACTIVE |
| APAdvanced Pump Company Inc | Woburn | MA | Machinery Manufacturing333996 | — | ◇ UNVERIFIED |
| APAdvanced Pump Company, Inc. | Woburn | MA | Machinery Manufacturing333996 | — | ◇ UNVERIFIED |
| BGBucci Grinding Group LLC | Woburn | MA | Machinery Manufacturing333517 | — | ◇ UNVERIFIED |
| CECity Elevator Company | Woburn | MA | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| CLCrown Lift Trucks | Woburn | MA | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| ETEpic Technologies INC | Woburn | MA | Machinery Manufacturing333993 | — | ◇ UNVERIFIED |
| MEMitsubishi Electric US INC | Woburn | MA | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| TTerrafugia | Woburn | MA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| VAVibration and Shock Technologies, LLC | Woburn | MA | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| XXylem | Woburn | MA | Machinery Manufacturing333914 | — | ◇ UNVERIFIED |
