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Manufacturing facilities in Connecticut

The register lists 3649 facilities in Connecticut. The Bureau of Labor Statistics counted 4395 establishments in Connecticut in 2025. Transportation Equipment Manufacturing is an industry with 45961 employees in Connecticut, according to the Bureau of Labor Statistics.

SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE

Map, counties and cities
Map of United States manufacturing facilities

Biggest counties

Capitol1,057South Central Connecticut636Naugatuck Valley541Western Connecticut398Greater Bridgeport244Lower Connecticut River Valley183Southeastern Connecticut179Northeastern Connecticut152
All 9 counties

Biggest cities

Federal labor statistics counted at least 4,395 manufacturing establishments in Connecticut in 2025, employing about 152,632 people, counting only the industry subsectors the Bureau of Labor Statistics discloses at this level. This registry lists 3,649, about 83% of that figure.

Facilities in Connecticut2,569 FACILITIES

Listing 2,569 of 3,649: the facilities with a website, a size band or two sources on record. The rest are in site search.

FacilityCityIndustryNAICSEmployeesStatus
Hyperfine Operations, INCGuilfordComputer and Electronic Product Manufacturing334510— ACTIVE
Imperial Electronic Assembly, INC.BrookfieldComputer and Electronic Product Manufacturing334418100–499 ACTIVE
Industrial Heater CORPCheshireFabricated Metal Product Manufacturing33232220–99 ACTIVE
Infini-d Alchemy, INC.BrookfieldFabricated Metal Product Manufacturing3328131–19 ACTIVE
Inline Plastics Inc. (Connecticut)SheltonPlastics and Rubber Products Manufacturing326113100–499 ACTIVE
Integra-cast, LLC.New BritainPrimary Metal Manufacturing3315241–19 ACTIVE
Integrated Illumination Systems INCMorrisElectrical Equipment, Appliance & Component Manufacturing335122100–499 ACTIVE
Integrity Mfg., LLCFarmingtonFabricated Metal Product Manufacturing33271020–99 ACTIVE
International Cordage East, LimitedColchesterTextile Product Mills314994100–499 ACTIVE
Intrasonics, INC.ThomastonComputer and Electronic Product Manufacturing3344191–19 ACTIVE
Ivanhoe Tool & Die Company, Inc.ThompsonMachinery Manufacturing33351120–99 ACTIVE
Ivy Biomedical Systems, INC.BranfordComputer and Electronic Product Manufacturing33451020–99 ACTIVE
Jammar Mfg. CO. INC.NianticMiscellaneous Manufacturing3399201–19 ACTIVE
Jarvis Airfoil INC.PortlandTransportation Equipment Manufacturing33641220–99 ACTIVE
Jarvis Products CorporationMiddletownMachinery Manufacturing3332411–19 ACTIVE
Jenray ProductsBrookfieldChemical Manufacturing32561220–99 ACTIVE
Jensen Industries INC.North HavenMiscellaneous Manufacturing33911420–99 ACTIVE
Jeskey, LLCNorth HavenFabricated Metal Product Manufacturing33271020–99 ACTIVE
Jet Process CORPWallingfordComputer and Electronic Product Manufacturing3344131–19 ACTIVE
J.f.d. Tube & Coil Products, INCHamdenMachinery Manufacturing33399420–99 ACTIVE
J. Joiners, LLCHamdenWood Product Manufacturing3219111–19 ACTIVE
John M. Dean CompanyPutnamFabricated Metal Product Manufacturing3326181–19 ACTIVE
Jonal Laboratories INCMeridenPlastics and Rubber Products Manufacturing32629920–99 ACTIVE
Jornik Manufacturing AcquisitionsStamfordMiscellaneous Manufacturing339999100–499 ACTIVE
Joval Machine CO INCYalesvilleTransportation Equipment Manufacturing336412— ACTIVE
J. R. Merritt Controls, INC.StratfordMachinery Manufacturing33392320–99 ACTIVE
J. Steele Services LLCMysticMiscellaneous Manufacturing3399991–19 ACTIVE
Juniper Design Group Inc.SouthigntonElectrical Equipment, Appliance & Component Manufacturing33512220–99 ACTIVE
J.v. Precision Machine CO.SeymourFabricated Metal Product Manufacturing33271020–99 ACTIVE
K4 Machining LLCWaterburyFabricated Metal Product Manufacturing3327101–19 ACTIVE
Kaman CORPBloomfieldTransportation Equipment Manufacturing336413500+ ACTIVE
Kaman Measuring & Memory, LLCNew BritainComputer and Electronic Product Manufacturing334112— ACTIVE
Kamatics CorporationBloomfieldFabricated Metal Product Manufacturing332721— ACTIVE
Kammetal INC.NaugatuckFabricated Metal Product Manufacturing3329991–19 ACTIVE
Kanthal CorporationBethelPrimary Metal Manufacturing33122120–99 ACTIVE
Kell-strom Tool International, INC.WethersfieldFabricated Metal Product Manufacturing33299920–99 ACTIVE
Kenneth Lynch & Sons, IncorporatedOxfordNonmetallic Mineral Product Manufacturing327390— ACTIVE
Keno Graphic Services, Inc.SheltonPrinting and Related Support Activities32311120–99 ACTIVE
Kenyon International INC.ClintonElectrical Equipment, Appliance & Component Manufacturing33521020–99 ACTIVE
Kenyon Laboratories, LLCHigganumMiscellaneous Manufacturing339999— ACTIVE
Kimberly-clark CORPNew MilfordPaper Manufacturing322120— ACTIVE
Kimchuk, IncorporatedDanburyComputer and Electronic Product Manufacturing33441820–99 ACTIVE
Kimtron, INC.OxfordComputer and Electronic Product Manufacturing3345171–19 ACTIVE
King Industries, INC.NorwalkChemical Manufacturing325199100–499 ACTIVE
Kochek Company, LLCPutnamFabricated Metal Product Manufacturing33271020–99 ACTIVE
Koster KeunenWatertownChemical Manufacturing32561220–99 ACTIVE
Kub Technologies INC.StratfordComputer and Electronic Product Manufacturing334517— ACTIVE
Laticrete Int'l INCBethanyChemical Manufacturing325510500+ ACTIVE
Laurel Wire Company Inc.PlainvilleFabricated Metal Product Manufacturing3326181–19 ACTIVE
Lavatec Laundry Technology INC.Beacon FallsMachinery Manufacturing33331020–99 ACTIVE

Search all 3,649 Connecticut facilities