How to Do a Connecticut LLC Name Search (2026 Guide)

Last Updated April 30, 2026 by the LLCForge Editorial Team. Verified against current state filing data and official Secretary of State sources.

Before you file your Certificate of Organization with the Connecticut Secretary of the State, your LLC name has to clear two tests: it must include a proper designator, and it has to be distinguishable from every other active business name on record. You can run that check yourself in about two minutes using the CONCORD business search at concord-sots.ct.gov. Get this wrong and your filing gets rejected, costing you days of processing time and a re-do.

How to Search Connecticut LLC Names: Step-by-Step

Step 1: Open the CONCORD business inquiry portal

Go to concord-sots.ct.gov/CONCORD. This is the Connecticut Secretary of the State’s official business records system. From the homepage, click “Business Inquiry” in the menu. You don’t need an account to search.

The portal covers every active and historical business entity registered in Connecticut, including LLCs, corporations, LPs, and registered foreign entities. That’s the complete dataset you’re checking against.

Step 2: Choose your search type

You’ll see options to search by business name, business ID, or filing number. Pick “Business Name Search.” For a name availability check, this is the only one that matters.

The search defaults to a “starts with” match, which is too narrow. Switch it to “contains” if the option is available, or run multiple searches with different keyword fragments from your proposed name.

Step 3: Type the core name without the designator

Enter just the distinctive part of your name. If you want “Maple Ridge Consulting LLC,” search for “Maple Ridge” first, then “Maple Ridge Consulting.” Leave the LLC off, since adding a designator is what makes a name a business name, not what makes it distinguishable.

Connecticut treats designator differences as legally insignificant. “Maple Ridge LLC” and “Maple Ridge Inc.” are considered the same name for distinguishability purposes.

Step 4: Review the results carefully

The system returns a list with entity name, status, and entity type. Pay attention to the status column. Active, in-good-standing, and recently dissolved names within a protected window all block your filing. Names marked “Withdrawn,” “Forfeited,” or “Dissolved” for an extended period may be available, but confirm with the Secretary’s office before banking on it.

Step 5: Test obvious variations

Run the search again with plurals, abbreviations, and punctuation differences. “Bay Street Holdings” and “Bay St. Holdings” can both exist. “The Coffee Co.” and “Coffee Company” likely can’t. Connecticut law looks past minor punctuation, articles (“the,” “a”), and entity designators when comparing names.

Step 6: Confirm trademark and domain availability

Run your top candidate through the USPTO trademark database and check that the .com domain isn’t owned by an unrelated business in your industry. State name approval doesn’t protect you from a federal trademark lawsuit.

Connecticut LLC Naming Rules

Designator requirement

Your name must end with one of: “Limited Liability Company,” “L.L.C.,” “LLC,” “Limited Liability Co.,” “Ltd. Liability Company,” or “Ltd. Liability Co.” Most filers use “LLC” because it’s clean and saves space on contracts and business cards.

Distinguishability standard

Connecticut requires your name to be “distinguishable upon the records” from every other active or reserved name. The Secretary of the State ignores these when comparing:

• Entity designators (LLC vs. Inc. vs. Corp.)
• The articles “a,” “an,” “the”
• Punctuation, capitalization, and spacing
• Singular vs. plural forms in some cases

Adding a single descriptive word, a geographic identifier, or a different industry term usually does the job. “Hartford Builders LLC” and “Hartford Custom Builders LLC” are different. “Builders LLC” and “Builders Inc.” are not.

Prohibited words

You can’t use language that implies your LLC is a government agency. Words like “FBI,” “Treasury,” “State Department,” or anything suggesting federal or state affiliation are off-limits.

Restricted words requiring approval

Certain regulated industry terms need additional licensing or approval before they can appear in your name:

• Bank, banker, banking, trust: Approval from the Connecticut Department of Banking
• Insurance, insurer, assurance: Department of Insurance review
• Engineer, engineering, surveyor, architect: Licensing board sign-off
• Attorney, lawyer, law office: Restricted to licensed practitioners
• CPA, accountant: State Board of Accountancy approval
• Doctor, medical, pharmacy: Department of Public Health

What If Your Connecticut LLC Name Is Already Taken?

Variation strategies that work

Add a meaningful descriptor before or after the conflicting word. “Northeast” plus the original name. A specific service (“Consulting,” “Logistics,” “Studio”) added to the back. A founder’s initials. Geographic markers like “New Haven” or “Fairfield County” are particularly effective in Connecticut because they signal location and create real distinguishability.

What doesn’t work: changing “and” to “&,” swapping LLC for L.L.C., or adding “The” at the front. The state will reject those as functionally identical.

Reserve the name while you finalize paperwork

If your name clears but you’re not ready to file your Certificate of Organization, you can reserve it for 120 days by filing an Application for Reservation of Name with the Secretary of the State. The fee is $60. This is worth doing if you’re still drafting your operating agreement, lining up funding, or coordinating with co-owners on a launch date.

DBA / trade name option

Connecticut LLCs can operate under a trade name (also called a DBA or fictitious name) that’s different from the legal LLC name. Trade names are filed at the town clerk’s office in the town where you do business, not at the state level. This is useful if you formed “Smith Holdings LLC” but want the storefront to say “Riverside Bakery.” A trade name doesn’t replace your legal name on contracts, tax filings, or court documents.

Trademark considerations

State name approval is a clerical check, not a legal clearance. The Secretary of the State doesn’t compare your name against federal trademarks, common law trademarks, or names registered in other states. If you plan to operate beyond Connecticut or sell branded products, search the USPTO database and consider filing your own federal trademark once you’re established.

After You Confirm Your Connecticut LLC Name

Once your name clears, the next move is filing your Certificate of Organization with the Connecticut Secretary of the State. The state filing fee is $120, and standard processing is typically 3 to 5 business days for online filings. You’ll also need a Connecticut registered agent with a physical address in the state.

Walk through the full filing sequence in our Connecticut LLC formation guide, review the broader requirements in the Connecticut LLC state guide, compare options in the Connecticut registered agent guide, and draft your internal rules using our Connecticut operating agreement guide.

Frequently Asked Questions

How do I know if a Connecticut LLC name is actually available?

Run it through the CONCORD business inquiry, then test variations with different spellings, punctuation, and pluralizations. If nothing active comes back as a close match, you’re likely clear. The only way to get a binding answer is to file the Certificate of Organization or a Name Reservation and let the Secretary of the State review it.

How long does a Connecticut name reservation last?

120 days from the date of filing. The fee is $60. If you need more time, you can reapply, but you can’t simply renew the same reservation indefinitely.

Can my LLC’s legal name be different from my brand or trade name?

Yes. Your legal LLC name goes on state filings, contracts, and tax documents. Your trade name (DBA) is what customers see on signage, websites, and marketing. File trade names at the town clerk’s office where you do business, not with the state.

Does my LLC name have to match my domain name?

No, but it helps. A matching .com builds trust and makes you easier to find. If your exact name isn’t available as a domain, consider adding “co,” “hq,” or your city. Don’t pick a Connecticut LLC name based purely on domain availability if it weakens your brand.

What makes two Connecticut business names “distinguishable”?

Different distinctive words. Adding “the” or changing punctuation isn’t enough. Adding a real word (“North,” “Premier,” “Coastal,” “Digital”) or a clearly different service descriptor is. The Secretary of the State applies this test based on what a reasonable person reading the records would see as a separate business.

Can I use the same name as a dissolved or forfeited Connecticut LLC?

Sometimes. If the prior entity has been dissolved or forfeited for long enough, the name may be available again. The CONCORD search will show the status. Before you commit, contact the Secretary of the State’s business services division to confirm the name is releasable, since some statuses still block reuse.

This content is for informational purposes only and does not constitute legal or tax advice. Always consult a qualified professional for guidance specific to your situation.