CORPORATE HEADQUARTERS LOCATED IN CONNECTICUT
Office of Legislative Research
Research Report
December 23, 2022
2015-R-0205
CORPORATE HEADQUARTERS LOCATED IN
CONNECTICUT
By: Rute Pinho, Principal Analyst
ISSUE
FORTUNE 1000
COMPANIES
Fortune magazine annually
ranks U.S. companies by
total revenues. Its survey
includes companies that are
incorporated in the United
States, operate here, and
file financial statements
with a government agency.
How many companies are headquartered in
Connecticut? This report has been updated by
OLR Report 2020-R-0160.
We identified 532 companies headquartered in
Connecticut, including 29 listed on the Fortune
1000 list. We compiled this data using the
ReferenceUSA database, which is a web-based
business research service. The list includes all of the Connecticut companies
Reference USA classifies as headquarters, except government agencies and
nonprofit organizations.
Table 1 lists the 532 companies by name and provides their headquarters location
and primary standard industrial classification (SIC) code. Table 2 lists the 29
companies on the Fortune 1000 list by their Fortune ranking.
Table 1: Companies Headquartered in Connecticut
Company
3GTMS
Town
Primary SIC Code
Computer Software-Manufacturers
A/Z Corporation
Shelton
North
Stonington
Achillion Pharmaceuticals Inc.
New Haven
Drug Millers (Manufacturers)
ACMAT Corporation
Farmington
Insurance-Liability
Acme Monaco Corporation
New Britain
Fabricated Wire Products-Miscellaneous (Manufacturers)
Acme United Corporation
Fairfield
Physicians & Surgeons Equip & Supplies-Manufacturers
Action Appliance Repair Services
Glastonbury
Appliances-Household-Major-Repairing
Adaco Inc.
Norwalk
Computer Software
Advantage Dental Group LLC
East Lyme
Dentists
Aetna Inc.
Hartford
Insurance
Phone (860) 240-8400
olr@cga.
Construction Management
Connecticut General Assembly
Office of Legislative Research
Stephanie A. D'Ambrose, Director
Room 5300
Legislative Office Building
Hartford, CT 06106-1591
(Table 1 continued)
Company
Town
Primary SIC Code
Ahlstrom Nonwovens LLC
Windsor Locks
Paper-Manufacturers
Aircastle Limited
Stamford
Aircraft Charter Rental & Leasing Services
Air-Vac Engineering
Seymour
Soldering Service
Alexion Pharmaceuticals Inc.
Cheshire
Pharmaceutical Consultants
Alinabal Holdings Corporation
Milford
Metal Stamping (Manufacturers)
Alinda Capital Partners LLC
Greenwich
Investments
All Star Transportation LLC
Waterbury
Buses-Charter & Rental
All-Star Driver
Watertown
Driving Instruction
Alpha Q Inc.
Colchester
Machine Shops (Manufacturers)
ALSTOM Power Inc.
Windsor
Electric Companies
Altus Capital Partners
Wilton
Venture Capital Companies
American Customer Care Inc.
Bristol
Call Centers
American Energy Group LTD
American Institute for Foreign
Study
Westport
Oil & Gas Exploration & Development
Stamford
Student Exchange Programs
American Metaseal Of CT Inc.
Hamden
Impregnating (Manufacturers)
American Total Protection
Hamden
Burglar Alarm Systems (Wholesale)
Amherst Pierpont Securities
Stamford
Investment Securities
Amphenol Corporation
Wallingford
Fiber Optics-Equipment & Systems (Manufacturers)
Anastasio Group
New Haven
Trucking
Angel Commercial LLC
Southport
Real Estate Consultants
Annapurna Capital Management
Greenwich
Loans
Apple Rehabilitation Inc.
Avon
Rehabilitation Services
APS Technology Inc.
Wallingford
Oil Field Equipment (Wholesale)
Aptuit LLC
Greenwich
Laboratories-Pharmaceutical (Manufacturers)
Aquarion Water Company
Bridgeport
Water & Sewage Companies-Utility
Assa Abloy Americas
New Haven
Hardware-Manufacturers
Athena Real Estate LLC
Atlantic Street Capital
Management
Danbury
Real Estate Buyers & Brokers
Stamford
Venture Capital Companies
Atlas Holdings LLC
Greenwich
Venture Capital Companies
Automotive Technologies Inc.
Middletown
Cellular Telephones (Services)
BAL Holdings Inc.
Stamford
Metal-Distributors (Wholesale)
Balance Point Capital Partners
Westport
Private Equity Companies
Bankwell Financial Group Inc.
New Canaan
Holding Companies (Bank)
Barn Yard/Great Country Garage
Ellington
Sheds-Tool & Utility
Barnes Group Inc.
Bristol
Aerospace Industries (Manufacturers)
Barteca Restaurant Group
Norwalk
Restaurant Management
Battea Class Action Services LLC
Stamford
Collection Agencies
BDC Partners LLC
Greenwich
Investments
Beacon Industries
Bloomfield
Aerospace Industries (Manufacturers)
December 23, 2022
Page 2 of 16
2015-R-0205
(Table 1 continued)
Company
Town
Primary SIC Code
Beauty Enterprises Inc.
Hartford
Beauty Salons-Equipment & Supplies (Wholesale)
Beazley USA Inc.
Farmington
Insurance
Beiersdorf Inc.
Wilton
Skin Treatments
Beirne Wealth Consulting LLC
Berlin Steel Construction
Company
Milford
Financial Planning Consultants
Kensington
Steel-Structural (Manufacturers)
Best Cleaners & Company
Middletown
Cleaners
Betteridge
Between Rounds Franchise
Corporation
Greenwich
Jewelers-Retail
South Windsor
Bagels
BIC Corporation
Shelton
Office Supplies-Manufacturers
Bidwell Industrial Group Inc.
Middletown
Time Stamps (Manufacturers)
Bio Metrics Inc.
Trumbull
Orthopedic Appliances
Biodel Inc.
Danbury
Drug Millers (Manufacturers)
Bird Bonette Stauderman Inc.
Black Diamond Capital
Management LLC
Westport
Marketing Consultants
Greenwich
Venture Capital Companies
Blue Buffalo
Wilton
Night Clubs
Blue Buffalo Pet Products Inc.
Wilton
Pet Supplies & Foods-Retail
Blum Shapiro
West Hartford
Accountants
Blyth Inc.
Boehringer Ingelheim
Corporation
Greenwich
Interior Decorators/Designers Supplies-Manufacturers
Ridgefield
Drug Millers (Manufacturers)
Bow Tie Cinemas LLC
Ridgefield
Theatres-Movie
Bozzuto's Inc.
Braxton Manufacturing Company
Inc.
Cheshire
Distribution Centers (Wholesale)
Watertown
Metal Goods-Manufacturers
Brooks Brothers Group
Enfield
Clothing-Retail
Brooks Todd & Mc Neil
Torrington
Insurance
Brookside Group
Stamford
Investments
Brynwood Partners LP
Greenwich
Venture Capital Companies
Bts USA Inc.
Stamford
Business Management Consultants
Cadent Energy Partners LLC
Stamford
Private Equity Companies
Calmare Theraputics Inc.
Fairfield
Patent Agents
Camuto Group
Greenwich
Shoes-Retail
Canaan Partners
Westport
Venture Capital Companies
Cantor Colburn LLP
Capewell Components Company
LLC
Hartford
Attorneys
South Windsor
Airline Support Services
Cara Therapeutics Inc.
Carlyle Johnson Machine
Company LLC
Shelton
Bolton
Pharmaceutical Preparation (Manufacturers)
Mechanical Power Trans Equip (not elsewhere classified)
(Manufacturers)
Carmody Torrance Sandak
Waterbury
Attorneys
December 23, 2022
Page 3 of 16
2015-R-0205
(Table 1 continued)
Company
Town
Primary SIC Code
Carter Mario Injury Lawyers
Milford
Attorneys
CAS Medical Systems Inc.
Castleton Commodities
International
Branford
Physicians & Surgeons Equip & Supplies-Manufacturers
Stamford
Commodity Exchanges
Catterton Partners Corporation
Greenwich
Private Equity Companies
Cell Mark Inc.
Norwalk
Recycling Centers (Wholesale)
Cell-Nique Corporation
Norwalk
Beverages-Manufacturers
Cenveo Inc.
Stamford
Printers (Manufacturers)
Charter Communications Inc.
Stamford
Telecommunications Services
Chase Enterprises LLC
Hartford
Real Estate Developers
Chefs' Warehouse Inc.
Ridgefield
Food Products (Wholesale)
Chelsea Groton Bank
Groton
Chessco Industries Inc.
Fairfield
Banks
Industrial Inorganic Chemicals (not elsewhere classified)
(Manufacturers)
Chief Executive Group LLC
Greenwich
Business Management Consultants
Chilton Investment Company LLC
Stamford
Financial Planning Consultants
Choice Pet Supply
Danbury
Pet Supplies & Foods-Retail
Cigna Corporation
Bloomfield
Medical Insurance Plans
Clearview Capital LLC
Old Greenwich
Venture Capital Companies
CNC Software Inc.
Tolland
Computer-Software Developers
Coburn Technologies Inc.
South Windsor
Ophthalmic Goods-Manufacturers
Cohen & Wolf PC
Bridgeport
Attorneys
Colony Hardware Corporation
Orange
Hardware-Retail
Colt Defense LLC
West Hartford
Manufacturers
Com Net Communications LLC
Bethel
Telecommunications Services
Commission On The Arts
Hartford
Organizations
Commonfund
Wilton
Investments
Compass Diversified Holdings
Westport
Venture Capital Companies
Computil Corporation
Shelton
Computer Services
Conair Corporation
Stamford
Electric Appliances-Small-Manufacturers
Connecticut Gastroenterology
Connecticut Mutual Holding
Company
New Haven
Physicians & Surgeons
Winsted
Holding Companies (Bank)
Connecticut Stone Supplies Inc.
Milford
Marble Products-Natural-Manufacturers
Connecticut Water Service Inc.
Clinton
Water & Sewage Companies-Utility
Conning & Company
Hartford
Financial Advisory Services
Consumers Petroleum
Trumbull
Petroleum Products (Wholesale)
Continuity Control
New Haven
Computer Software
Conval Inc.
Cornell Scott Hill Health
Corporation
Somers
Industrial Valves (Manufacturers)
New Haven
Clinics
COWI Marine North America
Trumbull
Engineers-Marine
December 23, 2022
Page 4 of 16
2015-R-0205
(Table 1 continued)
Company
Town
Primary SIC Code
Crabtree & Evelyn LTD
Woodstock
Cosmetics & Perfumes-Retail
Cramer & Anderson LLP
New Milford
Attorneys
Crane Company
Stamford
Valves-Manufacturers
Crystal Rock Holdings Inc.
Watertown
Water Companies-Bottled, Bulk, Etc
Cummings & Lockwood LLC
Attorneys
CUR Media Inc.
Stamford
South
Glastonbury
Custom Vault Corporation
Bethel
Safes & Vaults (Wholesale)
Cycling Sports Group
Wilton
Bicycle Fabricators (Manufacturers)
Cyient Inc.
East Hartford
Information Technology Services
D'Addario Industries
Bridgeport
Real Estate Management
Dan Perkins Subaru
Milford
Automobile Dealers-New Cars
DATTCO Inc.
New Britain
Buses-Charter & Rental
Datto Inc.
Norwalk
Computer Programming Services
Davis-Standard LLC
Pawcatuck
Plastics-Extruders (Manufacturers)
Day Pitney LLP
Stamford
Attorneys
Daymon Worldwide Inc.
Stamford
Product Development & Marketing
De Met's Candy Company
Stamford
Candy & Confectionery-Manufacturers
Decor & You
Southbury
Interior Decorators Design & Consultants
Defentect Group Inc.
New Canaan
Security Control Equip & Systems-Manufacturers
Dental Associates Of CT
Danbury
Dentists
Dermatologic Cosmetic Lab
East Haven
Cosmetics-Wholesale
Diageo North America Inc.
Norwalk
Liquors-Wholesale
Dime Bank
Norwich
Banks
Diserio Martin O'Connor
Stamford
Attorneys
Dmg Events USA
Stamford
Information & Referral Services
Doctor's Associates Inc.
Milford
Restaurant Management
Doncasters North America
Farmington
Machine Shops (Manufacturers)
Donghia Inc.
Milford
Furniture-Dealers-Showrooms
Dorian LPG LTD
Stamford
Deep Sea-Foreign Transport Of Freight
Dubin Clark & Company Inc.
Greenwich
Investments
Dymax Corporation
Torrington
Coatings-Protective-Manufacturers
E Way Direct Inc.
Fairfield
Marketing Programs & Services
Early Lucarelli Sweeney
New Haven
Attorneys
Eastern Company
Naugatuck
Hardware-Manufacturers
Eastern Savings Bank
Norwich
Banks
Eb Lens Inc.
Torrington
Clothing-Retail
EDGE Fitness Clubs
Fairfield
Health Clubs Studios & Gymnasiums
Edible Arrangements INTL Inc.
Wallingford
Fruit Baskets-Gift
Elixir Juice Bars
Ridgefield
Restaurant Management
Ellington Financial LLC
Old Greenwich
Real Estate Investments
December 23, 2022
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2015-R-0205
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