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US Northeast : Connecticut - Selective Company List

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Bruce Donnelly   bruce@gdi-solutions.com    (Biography)

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Introduction

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 http://www.reflexite.com   Avon CT 06001-4217
Kaman Corp. Public http://www.kaman.com   Bloomfield CT 06002
Barnes Group, Inc. Public http://www.barnesgroupinc.com   Bristol CT 06010-6376
TRUMPF Inc. US subsidiary http://www.us.trumpf.com Germany Farmington CT 06032
Otis Elevator Co. Public subunit http://www.otis.com   Farmington CT 06032
Huettinger Electronic, Inc. US subsidiary http://www.huettinger.com Germany Farmington CT 06032-2834
Open Solutions, Inc. Private http://www.opensolutions.com   Glastonbury CT 06033-4335
Carrier Corp. Public subunit http://www.carrier.com   Farmington CT 06034-2562
Northeast Utilities Public www.nu.com   Berlin CT 06037
IMS, Inc. Private http://www.imswire.com   Manchester CT 06040
Lydall, Inc. Public http://www.lydall.com   Manchester CT 06040-2378
Parker Hannifin Corp. / Skinner Valve Division Public subunit http://www.parker.com/skinner   New Britain CT 06051-4107
Stanley Works (The) Public http://www.stanleyworks.com   New Britain CT 06053-1675
Carlingswitch, Inc. Private http://www.carlingswitch.com   Plainville CT 06062-1177
GE Industrial Systems Public subunit http://www.ge.com   Plainville CT 06062-2372
Ames Department Stores Public www.amesstores.com   Rocky Hill CT 06067
Axsys Technologies, Inc. Public http://www.axsys.com   Rocky Hill CT 06067
Virginia Industries, Inc. Private http://www.hartfordball.com   Rocky Hill CT 06067-1809
Loctite Corp. US subsidiary http://www.loctite.com Germany Rocky Hill CT 06067-3910
Ensign-Bickford Company (The) Private Subunit http://www.e-bco.com   Simsbury CT 06070-2420
Veeder-Root Co. Public subunit http://www.veeder.com   Simsbury CT 06070-7684
Gerber Scientific, Inc. Public http://www.gerberscientific.com   South Windsor CT 06074
UTC Fuel Cells Public subunit http://www.internationalfuelcells.com   South Windsor CT 06074-2419
Gerber Coburn Optical, Inc. Public subunit http://www.gerberoptical.com   South Windsor CT 06074-3244
Specialized Technology Resources, Inc. Private http://www.strlab.com   Enfield CT 06082-4815
Casual Corner Group, Inc. Private http://www.casualcorner.com   Enfield CT 06083
Gerber Technology, Inc. Public subunit http://www.gerbertechnology.com   Tolland CT 06084-2806
Engelhard Surface Technologies Public subunit http://www.engelhard.com   East Windsor CT 06088-9696
Scapa North America US subsidiary http://www.scapana.com UK - England Windsor CT 06095-1527
Raytel Medical Corp. Public http://www.raytel.com   Windsor CT 06095-1540
AMS Services, Inc. Private Subunit http://www.ams-services.com   Windsor CT 06095-1548
TRC Public http://www.trcsolutions.com   Windsor CT 06095-1548
TRC Environmental Corp. Public subunit http://www.trcec.com   Windsor CT 06095-1548
ALSTOM Power, Inc. / Nuclear Power US subsidiary http://www.power.alstom.com France Windsor CT 06095-1564
Barnes Aerospace / Windsor Division Public subunit http://www.barnesaero.com   Windsor CT 06095-2043
SS&C Technologies, Inc. Public http://www.ssctech.com   Windsor CT 06095-2136
Stanadyne Corporation Private http://www.stanadyne.com   Windsor CT 06095-4209
Hamilton Sundstrand Corp. Public subunit http://www.hamiltonsundstrand.com   Windsor Locks CT 06096-1010
United Technologies Corp. Public http://www.utc.com   Hartford CT 06101-2608
HSB Group, Inc. Public subunit http://www.hsb.com   Hartford CT 06102-8900
United Technologies Public www.utc.com   Hartford CT 06103
Conning Corporation US subsidiary http://www.conning.com Switzerland Hartford CT 06103
CNG Corp. Public subunit http://www.cngcorp.com   Hartford CT 06103
CTG Resources, Inc. Public subunit http://www.cngcorp.com   Hartford CT 06103
Insurity Public subunit http://www.insurity.com   Hartford CT 06105-1906
Pratt & Whitney Public subunit http://www.pratt-whitney.com   East Hartford CT 06108-0968
United Technologies Research Center Public subunit http://www.utrc.utc.com   East Hartford CT 06108-1127
Wiremold Co. (The) US subsidiary http://www.wiremold.com France West Hartford CT 06110-2383
Hartford Financial Services Public www.thehartford.com   Hartford CT 06115
Goodrich Corporation / Pump and Engine Control Sys Public subunit http://www.aerospace.goodrich.com   West Hartford CT 06133
Colt's Manufacturing Co., Inc. Private http://www.colt.com   Hartford CT 06144-1868
Aetna Public www.aetna.com   Hartford CT 06156
Spirol International Corp. Private http://www.spirol.com   Danielson CT 06239-1434
Rogers Corp. Public http://www.rogerscorporation.com   Rogers CT 06263-0188
Pfizer Inc. / Global Research and Development Cent Public subunit http://www.pfizer.com   Groton CT 06340
Electric Boat Public subunit http://www.gdeb.com   Groton CT 06340-4989
Davis-Standard Corp. Public subunit http://www.davis-standard.com   Pawcatuck CT 06379-2313
C&M Corp. Private http://www.cm-corp.com   Wauregan CT 06387-0348
Farrel Corp. Public http://www.farrel.com   Ansonia CT 06401-1600
Seton Identification Products Private http://www.seton.com   Branford CT 06405-2899
Dual-Lite Public subunit http://www.dual-lite.com   Cheshire CT 06410-1212
Edwards Signaling Products Public subunit http://www.edwards-signals.com   Cheshire CT 06410-1212
Whelen Engineering Co. Private http://www.whelen.com   Chester CT 06412
IMS Health, Inc. Public http://www.imshealth.com   Fairfield CT 06430-5940
General Electric Company Public http://www.ge.com   Fairfield CT 06431-0001
CUNO, Inc. Private http://www.cuno.com   Meriden CT 06450-7161
Canberra Industries US subsidiary http://www.canberra.com France Meriden CT 06450-7169
Radio Frequency Systems, Inc. US subsidiary http://www.rfsworld.com France Meriden CT 06450-7195
ADC Telecommunications, Inc. / ADC Broadband Commu Public subunit http://www.adc.com   Meriden CT 06450-8323
AGC, Inc. Private http://www.agcincorporated.com   Meriden CT 06451-5135
Zygo Corp. Public http://www.zygo.com   Middlefield CT 06455
Kaman Aerospace / Raymond Engineering Operations Public subunit http://www.raymond-engrg.com   Middletown CT 06457-1766
GL&V / Dorr-Oliver Inc. US subsidiary http://www.dorr-oliver.com Canada Milford CT 06460-1676
Hubbell Inc. / Wiring Device-Kellems Public subunit http://www.hubbell-wiring.com   Milford CT 06460-2473
Alinabal Holdings Corp. Private http://www.alinabal.com   Milford CT 06460-2872
Circuit-Wise, Inc. Private http://www.circuit-wise.com   North Haven CT 06473-3194
Hubbell Inc. Public http://www.hubbell.com   Orange CT 06477-2204
Hubbell Electrical Products Public subunit http://www.hubbell.com   Orange CT 06477-2204
Microboard Processing, Inc. Private http://www.microboard.com   Seymour CT 06483-3921
Baldwin Technology Company, Inc. Public http://www.baldwintech.com   Shelton CT 06484
GE Supply Public subunit http://www.gesupply.com   Shelton CT 06484
PerkinElmer Instruments Public subunit http://www.perkinelmer.com   Shelton CT 06484-0003
TranSwitch Corp. Public http://www.transwitch.com   Shelton CT 06484-4694
OEM Controls, Inc. Private http://www.oemcontrols.com   Shelton CT 06484-6111
ASCOM Hasler Mailing Systems, Inc. US subsidiary http://www.ascomhasler.com Switzerland Shelton CT 06484-6140
Johnson Electric North America, Inc. US subsidiary http://www.johnsonmotor.com Hong Kong Shelton CT 06484-6216
Raytech Corp. Public http://www.raytech.com   Shelton CT 06484-6240
Environmental Data Resources, Inc. Private http://www.edrnet.com   Southport CT 06490-1169
GKN Aerospace US subsidiary http://www.gknwa.com Russia Wallingford CT 06492-1843
Pharmaceutical Research Institute (The) Public subunit http://www.bms.com   Wallingford CT 06492-1951
Amphenol Corp. Public http://www.amphenol.com   Wallingford CT 06492-3555
Times Fiber Communications, Inc. Public subunit http://www.timesfiber.com   Wallingford CT 06492-3555
Enthone, Inc. US subsidiary http://www.enthone.com UK - England New Haven CT 06508-1900
Southern New England Telecommunications Corp. Public subunit http://www.snet.com   New Haven CT 06510-1719
CuraGen Corp. Public http://www.curagen.com   New Haven CT 06511-5901
DSL.net, Inc. Public http://www.dsl.net   New Haven CT 06511-5960
TransPro, Inc. Public http://www.transpro.com   New Haven CT 06513-1049
Aquarion Company US subsidiary http://www.aquarion.com UK - England Bridgeport CT 06604
BHC Company US subsidiary http://www.bhcco.com UK - England Bridgeport CT 06604
Producto Corp. Private http://www.producto.com   Bridgeport CT 06606-5716
Casco Products Corp. Public subunit http://www.cascoproducts.com   Bridgeport CT 06610-1903
Lacey Manufacturing Co., Inc. US subsidiary http://www.laceymfg.com Germany Bridgeport CT 06610-2794
Oxford Health Plans Public www.oxhp.com   Trumbull CT 06611
Nash Engineering Co. Private http://www.nasheng.com   Trumbull CT 06611-1330
Imagistics International, Inc. Public http://www.imagistics.com   Trumbull CT 06611-4784
Dresser Measurement Private Subunit http://www.dresserinstruments.com   Stratford CT 06614
Dictaphone Corp. Private http://www.dictaphone.com   Stratford CT 06614-2559
Dianon Systems, Inc. Public http://www.dianon.com   Stratford CT 06615-7127
Radiall, Inc. US subsidiary http://www.radiallusa.com France Stratford CT 06615-7153
MacDermid, Inc. Public http://www.macdermid.com   Waterbury CT 06702-1802
PerkinElmer Optoelectronics, Inc. Public http://www.perkinelmer.com   Waterbury CT 06705-3811
Timex Corporation Private http://www.timex.com   Middlebury CT 06762
Katy Industries, Inc. Public http://www.katyindustries.com   Middlebury CT 06762
Eastern Company (The) Public http://www.easterncompany.com   Naugatuck CT 06770-2903
General DataComm Industries, Inc. Public http://www.gdc.com   Naugatuck CT 06770-4117
VITAL Network Services Private http://www.vitalnetsvc.com   Naugatuck CT 06770-4186
Vision Engineering, Inc. Private http://www.visioneng.com   New Milford CT 06776-4398
Torrington Co. (The) Public subunit http://www.torrington.com   Torrington CT 06790-4900
Bristol Babcock, Inc. US subsidiary http://www.bristolbabcock.com UK - England Watertown CT 06795-1631
Eyelematic Manufacturing Co., Inc. Private http://www.eyelematic.com   Watertown CT 06795-1638
Northrop Grumman Component Technologies / Winchest Public subunit http://www.litton-wed.com   Watertown CT 06795-1678
Duracell North Atlantic Group Public subunit http://www.duracell.com   Bethel CT 06801
Wentworth Laboratories, Inc. Private http://www.wentworthlabs.com   Brookfield CT 06804-3400
Photronics, Inc. Public http://www.photronics.com   Brookfield CT 06804-3937
ATMI, Inc. Public http://www.atmi.com   Danbury CT 06810-4169
Praxair, Inc. Public http://www.praxair.com   Danbury CT 06810-5103
Amphenol RF Public subunit http://www.amphenolcnp.com   Danbury CT 06810-5815
Hologic, Inc. / LORAD Division Public subunit http://www.loradmedical.com   Danbury CT 06810-7301
FAG Bearings Corp. US subsidiary http://www.bearingsfag.com Germany Danbury CT 06810-7553
Druck, Inc. US subsidiary http://www.pressure.com UK - England New Fairfield CT 06812-4033
Branson Ultrasonics Corp. Public subunit http://www.branson-plasticsjoin.com   Danbury CT 06813-1967
INT Media Group, Incorporated Public http://www.internet.com   Darien CT 06820
Howmet Corp. Public subunit http://www.howmet.com   Darien CT 06820-4505
BenefitPort Private http://www.benefitport.com   Greenwich CT 06830
NewRoads, Inc. Private http://www.newroads.com   Greenwich CT 06830
NFO WorldGroup, Inc. Public subunit http://www.nfow.com   Greenwich CT 06830-5530
JJI Lighting Group, Inc. Private http://www.jjilightinggroup.com   Greenwich CT 06830-6072
FactSet Research Systems Inc. Public http://www.factset.com   Greenwich CT 06830-6352
Crompton Corp. Public http://www.cromptoncorp.com   Greenwich CT 06831-2560
Peppers and Rodgers Group Private http://www.1to1.com   Norwalk CT 06850
Emcor Group Public www.emcorgroup.com   Norwalk CT 06851
ABB Inc. US subsidiary http://www.abb.com/us Switzerland Norwalk CT 06851-7000
Arch Chemicals, Inc. Public http://www.archchemicals.com   Norwalk CT 06851-7000
Olin Corp. Public http://www.olin.com   Norwalk CT 06851-7000
Trans-Lux Corp. Public http://www.trans-lux.com   Norwalk CT 06854-1622
Modem Media Public http://www.modemmedia.com   Norwalk CT 06855-1935
United States Surgical Corp. Public subunit http://www.ussurg.com   Norwalk CT 06856-1346
Applera Corporation Public http://www.applera.com   Norwalk CT 06856-5435
Soundview Technology Group, Inc. Public http://www.soundview.com   Old Greenwich CT 06870
VitalWorks, Inc. Public http://www.vitalworks.com   Ridgefield CT 06877
Boehringer Ingelheim Pharmaceuticals, Inc. US subsidiary http://www.boehringer-ingelheim.com Germany Ridgefield CT 06877-1059
LifeCare, Inc. Private http://www.lifecare.com   Westport CT 06880
Terex Corp. Public http://www.terex.com   Westport CT 06880-4431
Euro RSCG Circle US subsidiary http://www.circle.com France Wilton CT 06897-2523
SVG Lithography Systems, Inc. US subsidiary http://www.svg.com Netherlands Wilton CT 06897-4407
Mercator Software Public http://www.mercator.com   Wilton CT 06897-4445
Deloitte & Touche Private http://www.us.deloitte.com   Wilton CT 06897-4522
PanAmSat Corp. Public subunit http://www.panamsat.com   Wilton CT 06897-4522
GeneralCologne Re Public subunit http://www.genre.com   Stamford CT 06901
Hexcel Corp. Public http://www.hexcel.com   Stamford CT 06901-3284
ACNielsen US subsidiary http://www.acnielsen.com Netherlands Stamford CT 06901-5003
Rosco Laboratories, Inc. Private http://www.rosco.com   Stamford CT 06902
Xerox Corp. Public http://www.xerox.com   Stamford CT 06902-1288
Information Holdings, Inc. Public http://www.informationholdings.com   Stamford CT 06902-4310
Crane Co. Public http://www.craneco.com   Stamford CT 06902-6740
Startech Polycast Public subunit http://www.polycast.com   Stamford CT 06902-7630
Gartner, Inc. Public http://www.gartner.com   Stamford CT 06902-7700
Xerox Public www.xerox.com   Stamford CT 06904
Citizens Communications Public http://www.czn.com   Stamford CT 06905
MeadWestvaco Public www.meadwestvaco.com   Stamford CT 06905
SE Technologies, Inc. Private http://www.se-tech.com   Stamford CT 06905-4310
Omega Engineering, Inc. Private http://www.omega.com   Stamford CT 06907-2390
META Group, Inc. Public http://www.metagroup.com   Stamford CT 06912-7467
International Paper Co. Public http://www.internationalpaper.com  www.ipaper.com   Stamford CT 06921
Pitney Bowes, Inc. Public http://www.pitneybowes.com   Stamford CT 06926-0700
General Electric Capital Corporation Public subunit http://www.gecapital.com   Stamford CT 06927
General Electric Capital Corporation / Global Cons Public subunit http://www.ge.com/capital/globalfinance.com   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

Massachusetts

separate page

Connecticut

above

Rhode Island

Northeast page

Maine

Northeast page

New Hampshire

Northeast page

Vermont

Northeast page


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