# List of Connecticut companies

The following list of Connecticut companies includes notable companies that are, or once were, headquartered in Connecticut.

## Companies based in Connecticut
### A

* Aetna
* Affinion Group
* Aircastle
* Amphenol
* AQR Capital
* ATMI

### B

* Barden Corporation
* Bevin Brothers Manufacturing Company
* Bigelow Tea Company
* BlueTriton Brands
* Bob's Discount Furniture
* Boehringer Ingelheim USA
* Branson Ultrasonics
* Breitling USA
* Bridgewater Associates
* Bristol Technology

### C

* Cadenza Innovation
* Cannondale Bicycle Corporation
* Cartus
* Charter Arms
* Charter Communications
* Cigna
* Colt Defense
* Colt's Manufacturing Company
* Conair Corporation
* Crane Co.

### D

* Datto
* Diageo
* Digital Currency Group
* Dooney & Bourke
* Duracell

### E

* Eastern Mountain Sports
* Emcor
* ESL Investments
* ESPN
* Ethan Allen
* Eversource Energy

### F

* FactSet
* Fairfield County Bank
* Farrel Corporation
* Fire-Lite Alarms
* First County Bank
* Foxwoods Resort Casino
* Frontier Communications
* Frontier Communications of Connecticut
* FuelCell Energy

### G

* Gartner
* GE Capital
* General Dynamics Electric Boat
* Gerber Scientific
* Gramercy Funds Management
* Guideposts

### H

* H/2 Capital Partners
* The Hartford
* Hartford Courant
* Henkel North American Consumer Goods
* High Precision
* Hitachi Capital America Corp.
* Hosmer Mountain Soda

### I

* IMS Health
* Interactive Brokers
* IQVIA
* ITT Inc.

### J

* J.H. Whitney & Company

### K

* Kayak.com
* Knights of Columbus

### L

* Lego USA
* Liberty Bank
* Lone Pine Capital
* LoveSac

### M

* Media Storm
* Metropolitan District of Connecticut

### N

* Nestlé Waters North America
* New Britain Dry Cleaning Corporation
* Newman's Own
* Newtown Savings Bank
* North Sails
* North Street Capital, LP

### O

* Otis Elevator Company

### P

* People's United Financial
* Pepperidge Farm
* Philip Morris International
* Photronics Inc
* Pirate Capital
* Pitney Bowes
* Playtex
* Point72 Asset Management
* Pratt & Whitney
* Praxair
* Priceline.com
* Primacy
* Purdue Pharma

### R

* Reliant Air
* Rhone Apparel

### S

* S.A.C. Capital Advisors
* Saffron Road
* Savings Bank of Danbury
* Sikorsky Aircraft
* Sikorsky Credit Union
* Silver Point Capital
* SNET America
* Spectrum
* Sperry Rail Service
* Stanley Black & Decker
* Stew Leonard's
* Sturm, Ruger & Co.
* Subway
* Synchrony Financial

### T

* Taunton Press
* Ted's Restaurant
* Terex
* Tetley USA Inc.
* Timex Group USA
* Tower Optical
* Trufresh

### U

* UBS
* Union Savings Bank
* United Rentals
* United States Rubber Company
* United Technologies
* Urstadt Biddle Properties

### V

* Ventus
* Vertrue
* Victorinox North America
* Viking Global Investors
* Vineyard Vines
* Virtus Investment Partners

### W

* W. R. Berkley Corporation
* Webster Bank
* Western Connecticut Health Network
* WorldQuant
* WWE

### X

* Xerox
* XPO, Inc.

## Companies formerly based in Connecticut
### 0-9

* 454 Life Sciences

### A

* A. C. Gilbert Company
* Ansonia Clock Company
* Applera
* Arrowhead Water

### B

* Bear Naked, Inc.
* Blue Sky Studios
* Bon Ami
* Borden
* Bridgeport Machines, Inc.
* Brooks Brothers

### C

* Caldor
* Carrier Corporation
* Cervalis
* Chemtura
* Clairol
* Coleco
* Connecticut Company
* Crabtree & Evelyn

### D

* The Daily Voice

### E

* Edible Arrangements

### F

* Fairfield Greenwich Group
* Frisbie Pie Company
* FrontPoint Partners

### G

* G. Fox & Co.
* General Electric

### H

* Hamilton Sundstrand
* Harney & Sons
* Hartford Whalers

### I

* International Paper
* Ives Manufacturing Company

### J

* JWM Partners

### L

* Long-Term Capital Management

### M

* Marlin Firearms
* Meriden Firearms Co.
* MicroWarehouse

### N

* New York, New Haven and Hartford Railroad
* NewAlliance Bank

### P

* Pequot Capital Management
* PerkinElmer
* Peter Paul Candy Manufacturing Company
* Plainfield Asset Management
* Pope Manufacturing Company
* Praxair
* Price Rite

### R

* Remington Arms
* Russell Trust Association

### S

* Schick
* Sharps Rifle Manufacturing Company
* Southern Air
* Swisher International Group

### T

* Time Warner Cable
* Tobin Arms
* Towers Perrin
* The Travelers Companies

### U

* U.S. Smokeless Tobacco Company
* United Natural Foods
* UPS

### W

* Weekly Reader
* Winchester Repeating Arms Company