Computer and Electronic Product Manufacturing in Connecticut

NAICS 334 · CT

The register lists 303 facilities in Connecticut. The Bureau of Labor Statistics counted 310 establishments in the Computer and Electronic Product Manufacturing industry in Connecticut during 2025. Honeywell Fire Safety in Northford employed 506 people in 2025.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Plants in Connecticut248 FACILITIES

Listing 248 of 303: the facilities with a website, a size band or two sources on record. The rest are in site search.

Facility	City	Employees	Status
DPDesigns & Prototypes, LTD.	Simsbury	—	● ACTIVE
Dne Technologies, INC	Wallingford	—	● ACTIVE
DNDrs Naval Power Systems INC	Danbury	100–499	● ACTIVE
Ens Microwave, LLC	Danbury	—	● ACTIVE
Environmental Monitor Service, INC.	Meriden	1–19	● ACTIVE
FCFutec CORP.	Guilford	—	● ACTIVE
Gerber Technology LLC	Tolland	100–499	● ACTIVE
High Energy X-rays International CORP.	Wallingford	—	● ACTIVE
KIKahn Industries, INC	East Hampton	—	● ACTIVE
Nanoengineering Corporation	New Haven	—	● ACTIVE
New England Hemolytics, INC.	Branford	—	● ACTIVE
Oriolum LLC	Hartford	—	● ACTIVE
Owlstone INC.	Darien	—	● ACTIVE
PAPeak Antennas LLC	Monroe	—	● ACTIVE
Quadrex Corporation	Bethany	—	● ACTIVE
Quality Coils, Incorporated	Bristol	—	● ACTIVE
Quantum Circuits, INC.	New Haven	20–99	● ACTIVE
RURadiall USA INC	Wallingford	20–99	● ACTIVE
Raptor Photonics, INC.	Glastonbury	—	● ACTIVE
Resonance Micro Technologies, INC.	Hamden	—	● ACTIVE
Samarius Precision Instruments, INC.	Wallingford	—	● ACTIVE
SEScavin Equipment CO LLC	Southington	—	● ACTIVE
SASpectrum Associates, INC.	Milford	20–99	● ACTIVE
Tectonic Technologies LLC	Salem	—	● ACTIVE
Verotec INC	Durham	—	● ACTIVE
Vista Group International, INC	Darien	—	● ACTIVE
Xsoptix LLC	Madison	—	● ACTIVE
3dconnexion INC.	Norwalk	—	● ACTIVE
Acknowledgement Circuit Professional Limited Liability CO	Bristol	—	● ACTIVE
A.c.t. Audio, LLC	Vernon Rockville	—	● ACTIVE
American Computer Development, Incorporated	Branford	—	● ACTIVE
ASAmg Systems INC	Trumbull	—	● ACTIVE
Amphenol Corporation	Stamford	—	● ACTIVE
Cf Neuromedics, INC.	Coventry	—	● ACTIVE
Charge Solutions INC	North Haven	—	● ACTIVE
Connecticut Radio INC	Rocky Hill	—	● ACTIVE
Dalcomm Tech LLC	Torrington	—	● ACTIVE
Detech, LLC	Hebron	—	● ACTIVE
EAEaton Aerospace LLC	Bethel	100–499	● ACTIVE
Ellington Valley Technologies, INC.	East Windsor	—	● ACTIVE
Frontier Vision Technologies, INC.	Rocky Hill	—	● ACTIVE
Hamar Laser Instruments, INC.	Danbury	—	● ACTIVE
Hipotronics INC	Shelton	—	● ACTIVE
HPHi-rel Products, LLC	Essex	—	● ACTIVE
I. F. Engineering, CORP.	North Grosvenordale	—	● ACTIVE
Ipc Systems INC	Fairfield	—	● ACTIVE
Jks Systems LLC	Glastonbury	—	● ACTIVE
Johnson Gage Company the	Bloomfield	—	● ACTIVE
Lucca Ventures, INC.	Southington	—	● ACTIVE
Microphase CORP	Shelton	—	● ACTIVE

Search all 303 facilities