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Companies in Connecticut

1,000 companies in Connecticut.

Discover 1,000 companies headquartered in Connecticut, spanning manufacturing, construction, and industrial sectors. Browse by city — including Stamford, Hartford, New Haven or by industry, and open any profile for its location, website, size, and NAICS/SIC classification.

American Industrial Sales, LlcBerlin, Connecticut, United States American Industries, Inc.Griswold, Connecticut, United States American IndustriesJewett City, Connecticut, United States · Construction American Interactive MarketingStamford, Connecticut, United States American Irrigation Systems, Inc.Ridgefield, Connecticut, United States American Landscape Maintenance Assoc.Waterbury, Connecticut, United States American Landscape And Lawn Science LlcFranklin, Connecticut, United States American League Of Functional Therapists, Llc.Stratford, Connecticut, United States American Leisure ProductsStamford, Connecticut, United States American Life GroupBerlin, Connecticut, United States American Machinery CoBridgeport, Connecticut, United States American Marketing Association Southern Connecticut ChapterFairfield, Connecticut, United States American Merchant Financial ServicesDanbury, Connecticut, United States American Mosaic Tile CoMilford, Connecticut, United States American Mortgage Affiliates Company, LlcFarmington, Connecticut, United States American Mural ProjectWinchester, Connecticut, United States American Music & SoundBloomfield, Connecticut, United States American Nuclear InsurersGlastonbury, Connecticut, United States · Financial American Overhead Doors, Inc.Middletown, Connecticut, United States American Pet Containment, LlcWoodbury, Connecticut, United States American Pet Products Association (appa)Stamford, Connecticut, United States American Professional Educational ServicesNorwich, Connecticut, United States American Quality Roofing & Siding, LlcDanbury, Connecticut, United States American Railway TechnologiesGlastonbury, Connecticut, United States

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Frequently asked questions

How many companies are based in Connecticut?

1,000 companies in the directory are headquartered in Connecticut, browsable by city or by industry.

What information is included for each company?

Every listing includes the company name, location, website, employee size, revenue range where available, and NAICS/SIC classification, with a link to the full profile.

Where does this directory come from?

Listings are compiled and maintained by Factur, a sales and marketing firm for B2B manufacturers. Any company can request an update or removal from its profile page.