| AEAlloy Engineering Company, INC. | Bridgeport | CT | Computer and Electronic Product Manufacturing334513 | 20-99 | ▲ REPORTED CLOSED |
| ANAmphenol Nexus Technologies, INC. | Stamford | CT | Computer and Electronic Product Manufacturing334417 | 20-99 | ◐ LIKELY ACTIVE |
| AAAragra - AB Electronics LLC | Brookfield | CT | Computer and Electronic Product Manufacturing334418 | 20-99 | ◐ LIKELY ACTIVE |
| CICoherent, Inc - East Granby | East Granby | CT | Computer and Electronic Product Manufacturing334510 | 1-19 | ◐ LIKELY ACTIVE |
| MAMax Analytical Instruments | East Windsor | CT | Computer and Electronic Product Manufacturing334513 | 1-19 | ◐ LIKELY ACTIVE |
| NMNewmark Medical Components, INC. | Waterbury | CT | Computer and Electronic Product Manufacturing334510 | — | ◐ LIKELY ACTIVE |
Microboard Processing INC. | Seymour | CT | Computer and Electronic Product Manufacturing334418 | — | ◐ LIKELY ACTIVE |
| PEPerkin Elmer Health Sciences | Shelton | CT | Computer and Electronic Product Manufacturing334516 | — | ◐ LIKELY ACTIVE |
| SCSiemon CO | Watertown | CT | Fabricated Metal Product Manufacturing332116 | — | ◐ LIKELY ACTIVE |
| SASmiths Aerospace Components | Manchester | CT | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
| KIKrell Industries LLC | Orange | CT | Computer and Electronic Product Manufacturing334310 | — | ◇ UNVERIFIED |
| NCNorwalk Center LLC | Norwalk | CT | Computer and Electronic Product Manufacturing334511 | — | ◇ UNVERIFIED |
| OOOx Owner, LLC. | Uncasville | CT | Computer and Electronic Product Manufacturing334514 | — | ◇ UNVERIFIED |
| PPParallax Power Components, LLC | Bridgeport | CT | Computer and Electronic Product Manufacturing334414 | — | ◇ UNVERIFIED |
| PEPerkin Elmer Chrom Division | Norwalk | CT | Computer and Electronic Product Manufacturing334516 | — | ◇ UNVERIFIED |
| TCTwenty-five Commerce INC Dba Crystal Ice | Norwalk | CT | Computer and Electronic Product Manufacturing334512 | — | ◇ UNVERIFIED |
| UEUltra Electronics Measurement Systems | Wallingford | CT | Computer and Electronic Product Manufacturing334290 | — | ◇ UNVERIFIED |
| VVVishay Vitramon, Incorporated | Monroe | CT | Computer and Electronic Product Manufacturing334414 | — | ◇ UNVERIFIED |
| 9D908 Danbury | Danbury | CT | Computer and Electronic Product Manufacturing334516 | 20-99 | ◐ LIKELY ACTIVE |
| BVBi-Metallix Vishay Dale Electronics | East Windsor | CT | Computer and Electronic Product Manufacturing334416 | 20-99 | ◐ LIKELY ACTIVE |
| BBrookfield | Brookfield | CT | Chemical Manufacturing325193 | 100-499 | ◐ LIKELY ACTIVE |
| CICoherent, Inc - Bloomfield | Bloomfield | CT | Computer and Electronic Product Manufacturing334510 | 100-499 | ◐ LIKELY ACTIVE |
| CHCt112 Haydon Kerk | Waterbury | CT | Computer and Electronic Product Manufacturing334513 | 100-499 | ◐ LIKELY ACTIVE |
| CACt194 Ametek Magnetrol Usa, LLC | Naugatuck | CT | Computer and Electronic Product Manufacturing334514 | 20-99 | ◐ LIKELY ACTIVE |
| EMESCO Maritime Solutions | Wallingford | CT | Computer and Electronic Product Manufacturing334416 | 20-99 | ◐ LIKELY ACTIVE |
| GDGeneral Datacomm, INC. | Oxford | CT | Computer and Electronic Product Manufacturing334290 | — | ◐ LIKELY ACTIVE |
| LLabCorp | Bloomington | CT | Computer and Electronic Product Manufacturing334516 | 20-99 | ◐ LIKELY ACTIVE |
| MTMicrochip Technology Inc. Simsbury | Simsbury | CT | Computer and Electronic Product Manufacturing334413 | 20-99 | ◐ LIKELY ACTIVE |
| MAMicromod Automation & Controls LLC | Cromwell | CT | Computer and Electronic Product Manufacturing334513 | — | ◐ LIKELY ACTIVE |
| MCMicrosemi CORP. - Rf Signal Processing | Simsbury | CT | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| OEOmega Engineering - CT | Norwalk | CT | Computer and Electronic Product Manufacturing334513 | 20-99 | ◐ LIKELY ACTIVE |
| OIOSDA Inc | Milford | CT | Computer and Electronic Product Manufacturing334418 | 20-99 | ◐ LIKELY ACTIVE |
| PMParker Medical | Danbury | CT | Computer and Electronic Product Manufacturing334517 | 20-99 | ◐ LIKELY ACTIVE |
| PSPrecision Sensors | Milford | CT | Computer and Electronic Product Manufacturing334513 | 100-499 | ◐ LIKELY ACTIVE |
| SSSetra Systems, INC. | Plainville | CT | Computer and Electronic Product Manufacturing334513 | — | ◐ LIKELY ACTIVE |
| SASpectrum Associates INC. | Milford | CT | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| SCStratford Connecticut | Stratford | CT | Computer and Electronic Product Manufacturing334513 | 100-499 | ◐ LIKELY ACTIVE |
| TSThe Siemon Company- Assembly | Watertown | CT | Computer and Electronic Product Manufacturing334210 | 100-499 | ◐ LIKELY ACTIVE |
| TSThe Siemon Company- Dynamic | Watertown | CT | Computer and Electronic Product Manufacturing334210 | 20-99 | ◐ LIKELY ACTIVE |
| TAThinklogical, A Belden Brand | Milford | CT | Computer and Electronic Product Manufacturing334418 | 20-99 | ◐ LIKELY ACTIVE |
| TSTibidabo Scientific Industries (usa), INC. | Madison | CT | Computer and Electronic Product Manufacturing334419 | — | ◐ LIKELY ACTIVE |
| TLTrafftek, LLC | New Britain | CT | Computer and Electronic Product Manufacturing334290 | — | ◐ LIKELY ACTIVE |
TTM Technologies SS Division | Stafford Springs | CT | Computer and Electronic Product Manufacturing334418 | 100-499 | ◐ LIKELY ACTIVE |
| VAVishay Americas | Shelton | CT | Computer and Electronic Product Manufacturing334416 | 20-99 | ◐ LIKELY ACTIVE |
| VVjct | East Haven | CT | Computer and Electronic Product Manufacturing334517 | 1-19 | ◐ LIKELY ACTIVE |
| VCVjis Ct | East Haven | CT | Computer and Electronic Product Manufacturing334517 | 1-19 | ◐ LIKELY ACTIVE |
| WWallingford | Wallingford | CT | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| CSCyber-hack Solutions LLC | Middletown | CT | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |
| MMMelanin Microchips. INC. | New Haven | CT | Computer and Electronic Product Manufacturing334413 | — | ◐ LIKELY ACTIVE |
| SSSine Strategic Group, INC. | Cos Cob | CT | Computer and Electronic Product Manufacturing334511 | — | ◐ LIKELY ACTIVE |