| CGChromalloy Gas Turbine LLC | Windsor | CT | Transportation Equipment Manufacturing336412 | — | ▲ REPORTED CLOSED |
| CCtang1-yucn | Groton | CT | Transportation Equipment Manufacturing336411 | 20-99 | ◐ LIKELY ACTIVE |
| DADrt Aerospace LLC | Winsted | CT | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| DADRT Aerospace- Winsted | Winsted | CT | Transportation Equipment Manufacturing336412 | 20-99 | ◐ LIKELY ACTIVE |
| EAEnjet Aero New Britain | New Britain | CT | Transportation Equipment Manufacturing336412 | 20-99 | ◐ LIKELY ACTIVE |
| EAEnjet Aero Newington | Newington | CT | Transportation Equipment Manufacturing336412 | 20-99 | ◐ LIKELY ACTIVE |
EthosEnergy Accessories and Components - 64 Prospect | East Windsor | CT | Transportation Equipment Manufacturing336412 | 20-99 | ◐ LIKELY ACTIVE |
EthosEnergy Accessories and Components - 66 Prospect | East Windsor | CT | Transportation Equipment Manufacturing336412 | 20-99 | ◐ LIKELY ACTIVE |
| FFabrication | Seymour | CT | Transportation Equipment Manufacturing336390 | 1-19 | ◐ LIKELY ACTIVE |
| FFairfield | Fairfield | CT | Transportation Equipment Manufacturing336212 | 20-99 | ◐ LIKELY ACTIVE |
| FCFluid Connectors New Britain | New Britain | CT | Fabricated Metal Product Manufacturing332911 | 1-19 | ◐ LIKELY ACTIVE |
| GAGKN Aerospace Engine Systems, Newington | Newington | CT | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| GHGoat Holdco, LLC | Bristol | CT | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| HAHanwha Aerospace USA - East Windsor | East Windsor | CT | Transportation Equipment Manufacturing336412 | 20-99 | ◐ LIKELY ACTIVE |
| HAHanwha Aerospace USA - Newington | Newington | CT | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| HLHarco LLC | Branford | CT | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| HHHartford Hub | South Windsor | CT | Transportation Equipment Manufacturing336212 | 20-99 | ◐ LIKELY ACTIVE |
| HYHinckley Yacht Services | Stamford | CT | Transportation Equipment Manufacturing336612 | 1-19 | ◐ LIKELY ACTIVE |
| ILIMIA, LLC Groton | Groton | CT | Transportation Equipment Manufacturing336611 | 20-99 | ◐ LIKELY ACTIVE |
| JVJacobs Vehicle Systems | Bloomfield, CT | CT | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| JLJonal Labs Logistics, LLC | Meriden | CT | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| KAKaman Aerospace Corporation | Bloomfield | CT | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| KRKawasaki Rail Car Inc - New Haven | New Haven | CT | Transportation Equipment Manufacturing336510 | 20-99 | ◐ LIKELY ACTIVE |
| LMLockheed Martin Corporation US CT Bridgeport South Ave (5220) | Bridgeport | CT | Transportation Equipment Manufacturing336411 | 100-499 | ◐ LIKELY ACTIVE |
| LMLockheed Martin Corporation US CT Stratford Main St (5225) | Stratford | CT | Transportation Equipment Manufacturing336411 | 500+ | ◐ LIKELY ACTIVE |
| LMLockheed Martin Corporation US CT Trumbull (5227) | Trumbull | CT | Transportation Equipment Manufacturing336411 | 100-499 | ◐ LIKELY ACTIVE |
| MMilford | Milford | CT | Transportation Equipment Manufacturing336390 | 100-499 | ◐ LIKELY ACTIVE |
| NNgsp-y798 | East Hartford | CT | Transportation Equipment Manufacturing336413 | 100-499 | ◐ LIKELY ACTIVE |
| NMNumet Machining Tech | Orange | CT | Transportation Equipment Manufacturing336411 | 20-99 | ◐ LIKELY ACTIVE |
| PWPratt & Whitney East Hartford | East Hartford | CT | Transportation Equipment Manufacturing336412 | 500+ | ◐ LIKELY ACTIVE |
| PWPratt & Whitney Middletown | Middletown | CT | Transportation Equipment Manufacturing336412 | 500+ | ◐ LIKELY ACTIVE |
| PPProdigy Power LLC | Coventry | CT | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| PAPursuit Aerospace DBA Whitcraft South Windsor | South Windsor | CT | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| PAPursuit Aerospace - Manchester | Manchester | CT | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| RDRD Dynamics Corp | Bloomfield | CT | Transportation Equipment Manufacturing336413 | 100-499 | ◐ LIKELY ACTIVE |
| RRRoll Rite Torrington | Torrington | CT | Transportation Equipment Manufacturing336390 | 1-19 | ◐ LIKELY ACTIVE |
| RCRtx Corporation | Middletown | CT | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| SNSerco - New London, CT | New London | CT | Transportation Equipment Manufacturing336611 | 20-99 | ◐ LIKELY ACTIVE |
| SASikorsky Aircraft CORP | North Haven | CT | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| SASikorsky Aircraft Corporation | Main Shelton | CT | Transportation Equipment Manufacturing336411 | — | ◐ LIKELY ACTIVE |
| TGTriumph Group | West Hartford | CT | Transportation Equipment Manufacturing336413 | 500+ | ◐ LIKELY ACTIVE |
| TMTwin MRO | South Windsor | CT | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| WLWhitcraft LLC DBA Pursuit Aerospace | Eastford, CT | CT | Transportation Equipment Manufacturing336412 | 100-499 | ◐ LIKELY ACTIVE |
| KIKtw INC | Milford | CT | Transportation Equipment Manufacturing336412 | — | ◐ LIKELY ACTIVE |
| DTDefeo Transit Manufacturing & Supply, INC. | Brookfield | CT | Transportation Equipment Manufacturing336350 | 1-19 | ◇ UNVERIFIED |
| HBH & B Tool & Eng CO | South Windsor | CT | Transportation Equipment Manufacturing336413 | 20-99 | ◇ UNVERIFIED |
| MMMeadow Manufacturing, Inc. | Kensington | CT | Transportation Equipment Manufacturing336413 | 1-19 | ◇ UNVERIFIED |
| PCPolar Corporation | New Britain | CT | Transportation Equipment Manufacturing336412 | 20-99 | ◇ UNVERIFIED |
| PCPower cover USA, LLC | Waterbury | CT | Transportation Equipment Manufacturing336399 | 1-19 | ◇ UNVERIFIED |
| AMAdmill Machine Co., LLC | New Britain | CT | Transportation Equipment Manufacturing336412 | — | ◇ UNVERIFIED |