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
Madison Company	Branford	20–99	● ACTIVE
Mercury Scientific INC.	Newtown	1–19	● ACTIVE
Microboard Processing, INC.	Seymour	—	● ACTIVE
MIMicrotech INC	Cheshire	20–99	● ACTIVE
MTMirion Technologies (canberra), INC.	Meriden	100–499	● ACTIVE
Naiad Dynamics US INC	Shelton	20–99	● ACTIVE
NENortheast Electronics CORP	Milford	20–99	● ACTIVE
Orange Research INC	Milford	20–99	● ACTIVE
Pearse-bertram LLC	Bloomfield	20–99	● ACTIVE
Perkinelmer U.s. LLC	Shelton	—	● ACTIVE
Photronics INC	Brookfield	100–499	● ACTIVE
Plug-in Storage Systems, INC.	West Haven	1–19	● ACTIVE
PCPmp CORP	Avon	20–99	● ACTIVE
Pratt & Whitney Measurement Systems, INC.	Bloomfield	20–99	● ACTIVE
PXPrecision X-ray, INC.	Madison	20–99	● ACTIVE
Prime Technology LLC	North Branford	20–99	● ACTIVE
Pro Scientific, INC.	Oxford	1–19	● ACTIVE
Radeco, INC.	Plainfield	1–19	● ACTIVE
RHRamar Hall, INC.	Middlefield	20–99	● ACTIVE
Redco Audio, INC.	Monroe	—	● ACTIVE
Scott Electrokrafts INC	Andover	20–99	● ACTIVE
Siemon Company the	Watertown	100–499	● ACTIVE
Sonics & Materials INC	Newtown	20–99	● ACTIVE
Space Electronics, LLC	Berlin	20–99	● ACTIVE
Spectral LLC	Putnam	1–19	● ACTIVE
Technical Allied Products, INC.	Wallingford	1–19	● ACTIVE
Technical Manufacturing Corporation	Durham	1–19	● ACTIVE
TLTest Logic, INC.	Middletown	1–19	● ACTIVE
Thayermahan, INC	Groton	100–499	● ACTIVE
The Phoenix Company of Chicago, INC.	Naugatuck	20–99	● ACTIVE
The Sibley Company	Haddam	1–19	● ACTIVE
TMTimes Microwave Systems, INC	Wallingford	100–499	● ACTIVE
Trans Tek INC	Ellington	20–99	● ACTIVE
Weigh & Test Systems, INC.	Riverside	1–19	● ACTIVE
Whitman Controls LLC	Bristol	1–19	● ACTIVE
Winchester Interconnect Corporation	Milford	—	● ACTIVE
901 D, LLC	New London	1–19	● ACTIVE
Ab Electronics LLC	Danbury	—	● ACTIVE
APAb Photonics Incorporated	Guilford	—	● ACTIVE
Ampvisions LLC	Orange	—	● ACTIVE
AXAssociated X-ray Corporation	East Haven	—	● ACTIVE
Attalon Solutions, INC.	Bloomfield	—	● ACTIVE
Bad Elf LLC	West Hartford	—	● ACTIVE
Biowave Corporation	Westport	—	● ACTIVE
Buck Scientific Instruments, LLC	Ansonia	—	● ACTIVE
Calmare Therapeutics Incorporated	Shelton	—	● ACTIVE
Cmb Circuits LLC	Quaker Hill	—	● ACTIVE
CNCommunication Networks, LLC	Danbury	—	● ACTIVE
CICyvek INC	Wallingford	—	● ACTIVE
Delcom Products INC.	Danbury	—	● ACTIVE

Search all 303 facilities