Every licensed contractor in Connecticut. One free list.
36,451 businesses, straight from state records. Free to be listed. Free to stay listed. No lead fees, and we never charge you for a job.
Connecticut registers home improvement and new home construction contractors and licenses electrical, plumbing, heating and cooling and other trades.
Find a contractor by county and trade, then check the license on the state's license lookup (DCP).
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What's in this list
Registered and licensed contractors
Home Improvement22,719
New Home Builders2,683
Major (Commercial) Contractors806
Electrical5,334
Plumbing3,487
Heating & Air3,577
Demolition537
Fire Protection345
Asbestos & Lead231
Glass149
Elevators80
Solar & Geothermal58
Wells112
Specialty Trades107
Active contractor registrations and licenses with a Connecticut address, from the Department of Consumer Protection's open data. Listed under the county of their mailing ZIP code. Data as of 2026-10-21.