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US Northeast : Connecticut - Selective Company List

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This selective directory of major companies in Connecticut lists headquarters or major subunits located in Connecticut, including foreign-owned subsidiaries.

It is organized by zip code and may provide links to the local economic development organizations for the area.  See also maps of the Northeast region (NY, CT, RI, MA, VT, NH, ME)

Companies in other Northeast US states are listed in separate directories  (Massachusetts, New York, Rhode Island, New Hampshire, Vermont, Maine

This directory is provided for convenience as a tool for executives and their professional advisors to find the websites of leading companies in areas of potential interest as new business locations, and to recognize at a glance regional business clusters and the economic development agencies or chambers of commerce which support direct investment projects in specific areas.  Potential investors often want to know which companies already do business in a region.

We welcome corrections or additional suggestions of major or fast-growing companies which are headquartered in Connecticut, or which have invested in major subunits there. 

Typically we will only list companies with more than 250 employees worldwide or 100 employees at the location of a major subunit, since our focus is on serving companies of sufficient size and growth rate to create more than 50 new jobs within 3 years when they set up operations in new locations.

The presence or absence of any organization on these lists, or their position on the lists, does not imply any endorsement or opinion about their products or services, nor by them about our own.  The list also does not indicate whether or not we maintain relationships with such companies, or know anything about their investment plans.

The selections are simply intended to be helpful to professionals who may be unaware where such companies are located, or how to reach their websites quickly for more information.  This can support professional services, investment promotion activities, and investor retention or "aftercare" activities to stay informed about the companies.

If you need a database of companies, many sources are listed in our Research directory to provide additional details such as key executive names, address, phone, business descriptions, etc.  It is not the purpose of this directory to publish such details.  This directory just selectively highlights major firms in business communities to visualize who is where.

Company HQ/Sub Website Location
Connecticut       Local contacts City State Postal
Reflexite Corp. Private   Avon CT 06001-4217
Kaman Corp. Public   Bloomfield CT 06002
Barnes Group, Inc. Public   Bristol CT 06010-6376
TRUMPF Inc. US subsidiary Germany Farmington CT 06032
Otis Elevator Co. Public subunit   Farmington CT 06032
Huettinger Electronic, Inc. US subsidiary Germany Farmington CT 06032-2834
Open Solutions, Inc. Private   Glastonbury CT 06033-4335
Carrier Corp. Public subunit   Farmington CT 06034-2562
Northeast Utilities Public   Berlin CT 06037
IMS, Inc. Private   Manchester CT 06040
Lydall, Inc. Public   Manchester CT 06040-2378
Parker Hannifin Corp. / Skinner Valve Division Public subunit   New Britain CT 06051-4107
Stanley Works (The) Public   New Britain CT 06053-1675
Carlingswitch, Inc. Private   Plainville CT 06062-1177
GE Industrial Systems Public subunit   Plainville CT 06062-2372
Ames Department Stores Public   Rocky Hill CT 06067
Axsys Technologies, Inc. Public   Rocky Hill CT 06067
Virginia Industries, Inc. Private   Rocky Hill CT 06067-1809
Loctite Corp. US subsidiary Germany Rocky Hill CT 06067-3910
Ensign-Bickford Company (The) Private Subunit   Simsbury CT 06070-2420
Veeder-Root Co. Public subunit   Simsbury CT 06070-7684
Gerber Scientific, Inc. Public   South Windsor CT 06074
UTC Fuel Cells Public subunit   South Windsor CT 06074-2419
Gerber Coburn Optical, Inc. Public subunit   South Windsor CT 06074-3244
Specialized Technology Resources, Inc. Private   Enfield CT 06082-4815
Casual Corner Group, Inc. Private   Enfield CT 06083
Gerber Technology, Inc. Public subunit   Tolland CT 06084-2806
Engelhard Surface Technologies Public subunit   East Windsor CT 06088-9696
Scapa North America US subsidiary UK - England Windsor CT 06095-1527
Raytel Medical Corp. Public   Windsor CT 06095-1540
AMS Services, Inc. Private Subunit   Windsor CT 06095-1548
TRC Public   Windsor CT 06095-1548
TRC Environmental Corp. Public subunit   Windsor CT 06095-1548
ALSTOM Power, Inc. / Nuclear Power US subsidiary France Windsor CT 06095-1564
Barnes Aerospace / Windsor Division Public subunit   Windsor CT 06095-2043
SS&C Technologies, Inc. Public   Windsor CT 06095-2136
Stanadyne Corporation Private   Windsor CT 06095-4209
Hamilton Sundstrand Corp. Public subunit   Windsor Locks CT 06096-1010
United Technologies Corp. Public   Hartford CT 06101-2608
HSB Group, Inc. Public subunit   Hartford CT 06102-8900
United Technologies Public   Hartford CT 06103
Conning Corporation US subsidiary Switzerland Hartford CT 06103
CNG Corp. Public subunit   Hartford CT 06103
CTG Resources, Inc. Public subunit   Hartford CT 06103
Insurity Public subunit   Hartford CT 06105-1906
Pratt & Whitney Public subunit   East Hartford CT 06108-0968
United Technologies Research Center Public subunit   East Hartford CT 06108-1127
Wiremold Co. (The) US subsidiary France West Hartford CT 06110-2383
Hartford Financial Services Public   Hartford CT 06115
Goodrich Corporation / Pump and Engine Control Sys Public subunit   West Hartford CT 06133
Colt's Manufacturing Co., Inc. Private   Hartford CT 06144-1868
Aetna Public   Hartford CT 06156
Spirol International Corp. Private   Danielson CT 06239-1434
Rogers Corp. Public   Rogers CT 06263-0188
Pfizer Inc. / Global Research and Development Cent Public subunit   Groton CT 06340
Electric Boat Public subunit   Groton CT 06340-4989
Davis-Standard Corp. Public subunit   Pawcatuck CT 06379-2313
C&M Corp. Private   Wauregan CT 06387-0348
Farrel Corp. Public   Ansonia CT 06401-1600
Seton Identification Products Private   Branford CT 06405-2899
Dual-Lite Public subunit   Cheshire CT 06410-1212
Edwards Signaling Products Public subunit   Cheshire CT 06410-1212
Whelen Engineering Co. Private   Chester CT 06412
IMS Health, Inc. Public   Fairfield CT 06430-5940
General Electric Company Public   Fairfield CT 06431-0001
CUNO, Inc. Private   Meriden CT 06450-7161
Canberra Industries US subsidiary France Meriden CT 06450-7169
Radio Frequency Systems, Inc. US subsidiary France Meriden CT 06450-7195
ADC Telecommunications, Inc. / ADC Broadband Commu Public subunit   Meriden CT 06450-8323
AGC, Inc. Private   Meriden CT 06451-5135
Zygo Corp. Public   Middlefield CT 06455
Kaman Aerospace / Raymond Engineering Operations Public subunit   Middletown CT 06457-1766
GL&V / Dorr-Oliver Inc. US subsidiary Canada Milford CT 06460-1676
Hubbell Inc. / Wiring Device-Kellems Public subunit   Milford CT 06460-2473
Alinabal Holdings Corp. Private   Milford CT 06460-2872
Circuit-Wise, Inc. Private   North Haven CT 06473-3194
Hubbell Inc. Public   Orange CT 06477-2204
Hubbell Electrical Products Public subunit   Orange CT 06477-2204
Microboard Processing, Inc. Private   Seymour CT 06483-3921
Baldwin Technology Company, Inc. Public   Shelton CT 06484
GE Supply Public subunit   Shelton CT 06484
PerkinElmer Instruments Public subunit   Shelton CT 06484-0003
TranSwitch Corp. Public   Shelton CT 06484-4694
OEM Controls, Inc. Private   Shelton CT 06484-6111
ASCOM Hasler Mailing Systems, Inc. US subsidiary Switzerland Shelton CT 06484-6140
Johnson Electric North America, Inc. US subsidiary Hong Kong Shelton CT 06484-6216
Raytech Corp. Public   Shelton CT 06484-6240
Environmental Data Resources, Inc. Private   Southport CT 06490-1169
GKN Aerospace US subsidiary Russia Wallingford CT 06492-1843
Pharmaceutical Research Institute (The) Public subunit   Wallingford CT 06492-1951
Amphenol Corp. Public   Wallingford CT 06492-3555
Times Fiber Communications, Inc. Public subunit   Wallingford CT 06492-3555
Enthone, Inc. US subsidiary UK - England New Haven CT 06508-1900
Southern New England Telecommunications Corp. Public subunit   New Haven CT 06510-1719
CuraGen Corp. Public   New Haven CT 06511-5901, Inc. Public   New Haven CT 06511-5960
TransPro, Inc. Public   New Haven CT 06513-1049
Aquarion Company US subsidiary UK - England Bridgeport CT 06604
BHC Company US subsidiary UK - England Bridgeport CT 06604
Producto Corp. Private   Bridgeport CT 06606-5716
Casco Products Corp. Public subunit   Bridgeport CT 06610-1903
Lacey Manufacturing Co., Inc. US subsidiary Germany Bridgeport CT 06610-2794
Oxford Health Plans Public   Trumbull CT 06611
Nash Engineering Co. Private   Trumbull CT 06611-1330
Imagistics International, Inc. Public   Trumbull CT 06611-4784
Dresser Measurement Private Subunit   Stratford CT 06614
Dictaphone Corp. Private   Stratford CT 06614-2559
Dianon Systems, Inc. Public   Stratford CT 06615-7127
Radiall, Inc. US subsidiary France Stratford CT 06615-7153
MacDermid, Inc. Public   Waterbury CT 06702-1802
PerkinElmer Optoelectronics, Inc. Public   Waterbury CT 06705-3811
Timex Corporation Private   Middlebury CT 06762
Katy Industries, Inc. Public   Middlebury CT 06762
Eastern Company (The) Public   Naugatuck CT 06770-2903
General DataComm Industries, Inc. Public   Naugatuck CT 06770-4117
VITAL Network Services Private   Naugatuck CT 06770-4186
Vision Engineering, Inc. Private   New Milford CT 06776-4398
Torrington Co. (The) Public subunit   Torrington CT 06790-4900
Bristol Babcock, Inc. US subsidiary UK - England Watertown CT 06795-1631
Eyelematic Manufacturing Co., Inc. Private   Watertown CT 06795-1638
Northrop Grumman Component Technologies / Winchest Public subunit   Watertown CT 06795-1678
Duracell North Atlantic Group Public subunit   Bethel CT 06801
Wentworth Laboratories, Inc. Private   Brookfield CT 06804-3400
Photronics, Inc. Public   Brookfield CT 06804-3937
ATMI, Inc. Public   Danbury CT 06810-4169
Praxair, Inc. Public   Danbury CT 06810-5103
Amphenol RF Public subunit   Danbury CT 06810-5815
Hologic, Inc. / LORAD Division Public subunit   Danbury CT 06810-7301
FAG Bearings Corp. US subsidiary Germany Danbury CT 06810-7553
Druck, Inc. US subsidiary UK - England New Fairfield CT 06812-4033
Branson Ultrasonics Corp. Public subunit   Danbury CT 06813-1967
INT Media Group, Incorporated Public   Darien CT 06820
Howmet Corp. Public subunit   Darien CT 06820-4505
BenefitPort Private   Greenwich CT 06830
NewRoads, Inc. Private   Greenwich CT 06830
NFO WorldGroup, Inc. Public subunit   Greenwich CT 06830-5530
JJI Lighting Group, Inc. Private   Greenwich CT 06830-6072
FactSet Research Systems Inc. Public   Greenwich CT 06830-6352
Crompton Corp. Public   Greenwich CT 06831-2560
Peppers and Rodgers Group Private   Norwalk CT 06850
Emcor Group Public   Norwalk CT 06851
ABB Inc. US subsidiary Switzerland Norwalk CT 06851-7000
Arch Chemicals, Inc. Public   Norwalk CT 06851-7000
Olin Corp. Public   Norwalk CT 06851-7000
Trans-Lux Corp. Public   Norwalk CT 06854-1622
Modem Media Public   Norwalk CT 06855-1935
United States Surgical Corp. Public subunit   Norwalk CT 06856-1346
Applera Corporation Public   Norwalk CT 06856-5435
Soundview Technology Group, Inc. Public   Old Greenwich CT 06870
VitalWorks, Inc. Public   Ridgefield CT 06877
Boehringer Ingelheim Pharmaceuticals, Inc. US subsidiary Germany Ridgefield CT 06877-1059
LifeCare, Inc. Private   Westport CT 06880
Terex Corp. Public   Westport CT 06880-4431
Euro RSCG Circle US subsidiary France Wilton CT 06897-2523
SVG Lithography Systems, Inc. US subsidiary Netherlands Wilton CT 06897-4407
Mercator Software Public   Wilton CT 06897-4445
Deloitte & Touche Private   Wilton CT 06897-4522
PanAmSat Corp. Public subunit   Wilton CT 06897-4522
GeneralCologne Re Public subunit   Stamford CT 06901
Hexcel Corp. Public   Stamford CT 06901-3284
ACNielsen US subsidiary Netherlands Stamford CT 06901-5003
Rosco Laboratories, Inc. Private   Stamford CT 06902
Xerox Corp. Public   Stamford CT 06902-1288
Information Holdings, Inc. Public   Stamford CT 06902-4310
Crane Co. Public   Stamford CT 06902-6740
Startech Polycast Public subunit   Stamford CT 06902-7630
Gartner, Inc. Public   Stamford CT 06902-7700
Xerox Public   Stamford CT 06904
Citizens Communications Public   Stamford CT 06905
MeadWestvaco Public   Stamford CT 06905
SE Technologies, Inc. Private   Stamford CT 06905-4310
Omega Engineering, Inc. Private   Stamford CT 06907-2390
META Group, Inc. Public   Stamford CT 06912-7467
International Paper Co. Public   Stamford CT 06921
Pitney Bowes, Inc. Public   Stamford CT 06926-0700
General Electric Capital Corporation Public subunit   Stamford CT 06927
General Electric Capital Corporation / Global Cons Public subunit   Stamford CT 06927
Companies in other Northeast US region states are on separate pages  (Massachusetts, Connecticut, Rhode Island, New Hampshire, Vermont, Maine)
New York

separate page


separate page



Rhode Island

Northeast page


Northeast page

New Hampshire

Northeast page


Northeast page

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Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009  Global Direct Investment Solutions, Inc.      Last modified: 01/27/09