 Devon Precision Industries, INC | Wolcott | — | ● ACTIVE |
| JPJ.v. Precision Machine CO. | Seymour | 20–99 | ● ACTIVE |
| TCTreadwell Corporation (delaware) | Thomaston | 20–99 | ● ACTIVE |
| AEAir-vac Engineering Company INC | Seymour | 20–99 | ● ACTIVE |
 Baird Machinery CORP | Thomaston | — | ● ACTIVE |
 Act Robots, INC | Bristol | — | ● ACTIVE |
| CIC.g.l., INC. | Watertown | — | ● ACTIVE |
 Cheshire Tool CO | Cheshire | — | ● ACTIVE |
 Connecticut Tool & Cutter Company | Bristol | — | ● ACTIVE |
 Empire Tool LLC | Derby | — | ● ACTIVE |
 Interquip-usa, LLC | Shelton | — | ● ACTIVE |
 Kolga, LLC | Beacon Falls | — | ● ACTIVE |
 Retina Systems INC. | Seymour | — | ● ACTIVE |
| VEVangor Engineering Corporation, the | Oxford | — | ● ACTIVE |
 Petit Tool CO. the | Thomaston | — | ◐ LIKELY ACTIVE |
| HBH. Barber & Sons, INC. | Naugatuck | 20–99 | ◐ LIKELY ACTIVE |
 Lavatec Laundry Technology INC. | Beacon Falls | — | ◐ LIKELY ACTIVE |
 Bagela Usa, LLC | Shelton | — | ◐ LIKELY ACTIVE |
 Brookfield Industries, INC. | Thomaston | — | ◐ LIKELY ACTIVE |
| ESEdward Segal INC | Thomaston | 20–99 | ▲ REPORTED CLOSED |
| GAGen-el-mec Associates, LLC | Oxford | — | ◐ LIKELY ACTIVE |
| PDPic Design CORP | Middlebury | 20–99 | ◐ LIKELY ACTIVE |
| FCFarrel Corporation | Ansonia | — | ◇ UNVERIFIED |
| AAnsonia | Ansonia | 20–99 | ◐ LIKELY ACTIVE |
| BRBBM Railway Equipment, LLC. | Oxford | 20–99 | ◐ LIKELY ACTIVE |
| DCD'Ambruoso Construction Company Inc | Oxford | 20–99 | ◐ LIKELY ACTIVE |
| EDElevator Door Manufacturing | Oxford | 20–99 | ◐ LIKELY ACTIVE |
| TUTreif USA INC. | Shelton | — | ◐ LIKELY ACTIVE |
| ALArivang LLC | Cheshire | — | ◇ UNVERIFIED |
| BIBalfor Industries, INC. | Oxford | — | ◇ UNVERIFIED |
| BMBen-art Manufacturing CO. INC. | Prospect | — | ◇ UNVERIFIED |
| BWBroadstar Wind Systems, LP | Cheshire | — | ◇ UNVERIFIED |
| DLD & L Tool, INC. | Waterbury | — | ◇ UNVERIFIED |
| ECEastcoast Centerless Grinding, LLC | Waterbury | — | ◇ UNVERIFIED |
| EPEnvipco (environmental Products Corporation) | Naugatuck | — | ◇ UNVERIFIED |
| EEEtter Engineering Company, INC. | Bristol | — | ◇ UNVERIFIED |
| FIFutureswiss International LLC | Thomaston | — | ◇ UNVERIFIED |
| JMJ. M. INC. | Oxford | — | ◇ UNVERIFIED |
| JPJ.m. Products, INC. | Oxford | — | ◇ UNVERIFIED |
| LULamor USA Corporation | Seymour | — | ◇ UNVERIFIED |
| MBMachine Builders of New England, LLC | Shelton | — | ◇ UNVERIFIED |
| PMPlainville Machine and Tool Company, INC. | Bristol | — | ◇ UNVERIFIED |
| RCRay-Jurgen Co., LLC | Bristol | — | ◇ UNVERIFIED |
| RMRios Machine & Tool | Shelton | — | ◇ UNVERIFIED |
| STSpecialty Thermal Services LLC | Terryville | — | ◇ UNVERIFIED |
