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Name availability · CT

Connecticut business name search

In Connecticut, search the Secretary of the State's Business Records Search on CT.gov Business. You can search by business name, Business ALEI or filing number, with an option to match the exact name. Because DBAs are filed with town clerks, also check the Connecticut Trade Name Registry before you commit.

How to check if a name is available in Connecticut

  1. 01

    Open Business Records Search

    Go to the Online Business Search on service.ct.gov and enter your proposed name. You can also search by Business ALEI or filing number.

  2. 02

    Try it with and without "exact name"

    Leave "Search on exact name" unchecked first to see close variations, then check it to confirm whether your precise wording is in use.

  3. 03

    Search the Trade Name Registry

    Connecticut keeps a separate Trade Name Registry search on CT.gov. Run your name there to catch DBAs filed with town clerks.

  4. 04

    Check against active names

    Connecticut's LLC filing instructions say the name has to be distinguishable from all other active business names on record. Focus on active results when judging conflicts.

  5. 05

    Review trademarks and digital handles

    Search https://tmsearch.uspto.gov/ for registered or pending federal marks, and make sure you can get the matching domain and social handles.

  6. 06

    Generate more options

    If your first pick is taken, our free generator at /business-name-generator/ can help you build a backup list.

Connecticut business naming rules

  • An LLC name must include a designation such as Limited Liability Company, LLC, L.L.C., Limited Liability Co., Ltd. Liability Company or Ltd. Liability Co.
  • A professional LLC must use P.L.L.C., PLLC or Professional Limited Liability Company.
  • The name must be distinguishable from all other active business names on record with the Secretary of the State.
  • Trade names are filed in one town only, either where the trade name address is or (for registered businesses) where the principal place of business is.

Reserving a name

Connecticut lets you reserve a business name online for 120 days, and the day you file counts as day one. Check the current fee on the agency's site.

DBAs and trade names

Connecticut trade names (DBAs) are filed with the local town clerk where the business is primarily transacted, in one town only. The state also has a searchable Connecticut Trade Name Registry on CT.gov.

Still looking for the right name?

Brainstorm dozens of options with the free generator, then run your shortlist through the Connecticut search above.

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Frequently asked questions

How do I look up a business name in Connecticut?

Use the Business Records Search on CT.gov Business. Search by name with and without the exact-name option, then search the Connecticut Trade Name Registry for DBAs.

Where do I file a DBA in Connecticut?

With the town clerk in the town where the business is primarily transacted. File in one town only, even if you work in several.

How long does a Connecticut name reservation last?

120 days, counting the filing day as day one.

Does my LLC need to be in good standing to file a trade name?

Yes. Connecticut asks business organizations to confirm active status and current annual reports before filing a trade name application.

General information, not legal advice. Name approval is decided by the Connecticut Secretary of the State (Business Services Division); a name showing as available in a search is not a guarantee it will be accepted.