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CT — Official registry guide

Connecticut business information

Find the official registration authority for Connecticut and company profiles incorporated in this jurisdiction within our current collection.

Secretary of the State

Use the official authority to verify a state registration number, current status and available certified documents. The authority’s access terms and fees apply.

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Understand the record

A company’s incorporation jurisdiction can differ from its principal business address. Registration to do business in another state does not necessarily create a new company.

OpenBase USA is independent of Secretary of the State. Our CIK and EIN fields do not substitute for a Connecticut registration number.

Search imported Connecticut business registrations →

Available SEC company profiles

8 profiles incorporated in Connecticut. These profiles come from SEC filings. State registration records, where available, are presented separately.

CompanyCIKIncorporated inIndustry (SIC)
ACME UNITED CORPACU0000002098ConnecticutCutlery, Handtools & General Hardware
CONNECTICUT LIGHT & POWER COCNTHP · CNLPL · CNTHO · CNTHN · CNLHP · CNLTP · CNLTL · CNPWM · CNLHO · CNPWP · CNLPM · CNLTN · CNLHN0000023426ConnecticutElectric Services
EASTERN COEML0000031107ConnecticutCutlery, Handtools & General Hardware
HUBBELL INCHUBB0000048898ConnecticutElectronic Components & Accessories
MBIA INCMBI0000814585ConnecticutSurety Insurance
PATRIOT NATIONAL BANCORP INCPNBK0001098146ConnecticutNational Commercial Banks
PHOTRONICS INCPLAB0000810136ConnecticutSemiconductors & Related Devices
STANLEY BLACK & DECKER, INC.SWK0000093556ConnecticutCutlery, Handtools & General Hardware