Plainville Electrical Products Company, the | Bristol | — | ● ACTIVE |
Point Lighting Corporation | Bloomfield | — | ● ACTIVE |
Power Edge, INC. | Bethel | — | ● ACTIVE |
| PCPrysmian Cables and Systems Usa, LLC | Willimantic | 100–499 | ● ACTIVE |
Safestart Systems, LLC | Weston | — | ● ACTIVE |
| SRSylvan R Shemitz Designs LLC | West Haven | — | ● ACTIVE |
The Carlyle Johnson Machine Co, LLC | Bolton | — | ● ACTIVE |
Transformer Technology, INC. | Durham | — | ● ACTIVE |
Winchester Interconnect Cm Corporation | Dayville | — | ● ACTIVE |
| WIWiretek, INC. | Bloomfield | — | ● ACTIVE |
| ASAmphenol Spectra Strip | Hamden | — | ◐ LIKELY ACTIVE |
| BMBirk Manufacturing, INC. | East Lyme | 100–499 | ◐ LIKELY ACTIVE |
| FEFuelcell Energy INC | Danbury | 100–499 | ◐ LIKELY ACTIVE |
Nufern | East Granby | — | ◐ LIKELY ACTIVE |
| EMElectric Motion CO INC | Winsted | — | ◇ UNVERIFIED |
| GCGeneral Cable | Willimantic | — | ◇ UNVERIFIED |
| SDSchneider-square D Field Service | East Haven | — | ◇ UNVERIFIED |
| VTVoltarc Technologies INC | Waterbury | — | ◇ UNVERIFIED |
Electrodes, Incorporated | Milford | — | ◐ LIKELY ACTIVE |
Powered Armor Technologies LLC | Norwich | — | ◐ LIKELY ACTIVE |
| YTYardney Technical Products, INC. | Pawcatuck | — | ◇ UNVERIFIED |
| CICoherent, Inc - East Granby | East Granby | 1–19 | ◐ LIKELY ACTIVE |
| CVConnecticut Valley Industries, LLC | Old Saybrook | — | ◐ LIKELY ACTIVE |
| EAEmerson / Appleton GRP LLC | East Granby | 20–99 | ◐ LIKELY ACTIVE |
| GAGkn Aerospace Services Structures LLC | Cromwell | — | ◐ LIKELY ACTIVE |
| JDJuniper Design Group Inc. | Southignton | 20–99 | ◐ LIKELY ACTIVE |
| MCM Cubed Technology Inc | Monroe | 100–499 | ◐ LIKELY ACTIVE |
| OFOfs Fitel, LLC | Avon | — | ◐ LIKELY ACTIVE |
| PCPQ Controls, Inc | Bristol | 20–99 | ◐ LIKELY ACTIVE |
| BCBaldor/boehm CO | New Milford | — | ◇ UNVERIFIED |
| CPCasco Products Corporation | Bridgeport | — | ◇ UNVERIFIED |
| CMC & M CORP | Wauregan | — | ◇ UNVERIFIED |
| CACrouse-hinds Airport Lighting Products | Windsor | — | ◇ UNVERIFIED |
| DCDossert Corporation | Waterbury | — | ◇ UNVERIFIED |
| DTDrs Technologies | Bridgeport | — | ◇ UNVERIFIED |
| GEGeneral Electric Consumer & Industrial | Plainville | — | ◇ UNVERIFIED |
| GEGeneral Electric Electrical Components | Bridgeport | — | ◇ UNVERIFIED |
| KAKaman Aerospace Corp, Raymond Eng Operations | Middletown | — | ◇ UNVERIFIED |
| LPLex Products CORP | Shelton | — | ◇ UNVERIFIED |
| MCMontgomery CO | Windsor Locks | — | ◇ UNVERIFIED |
| CSCo-Create - Stamford, CT | Stamford | 20–99 | ◐ LIKELY ACTIVE |
| DPDigatron Power Electronics INC | Shelton | — | ◐ LIKELY ACTIVE |
DVM Manufacturing, LLC - Naugatuck | Naugatuck | 1–19 | ◐ LIKELY ACTIVE |
| ECEast Coast Lightning Equipment Inc. | Torrington | 20–99 | ◐ LIKELY ACTIVE |
| FPForest Parkway | Shelton | 20–99 | ◐ LIKELY ACTIVE |
| GSGroup Six Marketing LLC | Simsbury | — | ◐ LIKELY ACTIVE |
| HSHartford Satellite | Windsor | 20–99 | ◐ LIKELY ACTIVE |
| HEHubbell - EMC | Winsted | 20–99 | ◐ LIKELY ACTIVE |
| HPHubbell Power Systems INC | Shelton | — | ◐ LIKELY ACTIVE |
| HRHubbell - Ripley | Cromwell | 20–99 | ◐ LIKELY ACTIVE |