Public Companies Headquartered in Connecticut

Summary

74 public companies headquartered in Connecticut

74 of the 3888 companies listed on U.S. exchanges that Tickerscape maps report a headquarters address in Connecticut — the 14th largest by company count. The largest sector is Manufacturing & Transport with 21. The largest concentration is in Stamford, with 17.

Sectors

Sector groupings are Tickerscape's own, derived from each company's SEC Standard Industrial Classification code — not GICS®, ICB® or any other licensed scheme, and they will disagree with those on some companies. 2 of these companies have no SIC code on file and are left out of this breakdown rather than being assigned a guessed sector. How sectors are assigned.

Largest cities

These are cities as recorded on each company's filed address, not metropolitan areas — neighbouring municipalities are counted separately.

Companies

States with a similar number of companies

• North Carolina 91
• Georgia 90
• Maryland 70
• Arizona 65

All states · View the interactive map

Data last updated 2026-09-14. This count is computed from the published headquarters dataset each time the page loads. Registered-agent addresses are excluded so incorporation services do not inflate a state, a company with two listed share classes is counted once, and companies headquartered outside the United States are counted in no state. How this count is derived.

Informational purposes only — not investment advice. Headquarters locations reflect each company's most recently recorded principal address and are approximate.