The State of Connecticut requires all businesses to hold some form of business registration which is dependent on the business structure and if the company has employees. In addition, some professions or trades require licensing. Use our license database look-up to determine if a license is required and the administering agency.
Business Formation Verification
- Sole proprietorships and general partnerships require a tradename certificate with the Town Clerk in the town in which the business is based. Currently there is no centralized look-up and requires you to contact the town directly.
- Corporations, LLCs, LLPs and LPs file with the Connecticut Secretary of the State. Search Connecticut Business Registration Data.
Professional or Trade License Verification
- The Connecticut eLicense web portal provides real-time access to over 600 credential types issued and regulated by the following State agencies. These credential types include licenses, registrations, permits, or certifications for individuals, organizations and facilities.
- To view a list of the licenses administered by the agencies click on the agency link provided below.
* Consumer Protection
* Public Health
* Agriculture
* Connecticut Agricultural Experiment Station
* Office of Early Childhood & Youth Camp
* Developmental Services
* State Fire Marshal
* Revenue Services
- To view a list of the licenses administered by the agencies click on the agency link provided below.
- Additional agencies offer their own verification systems. Use the links below:
* Insurance
* Banking