Key Takeaways
- Search tool: Connecticut Business Records Search, free, run by the Connecticut Secretary of the State, Business Services Division
- Search by business name, authoritative legal entity identifier (alei), filing number
- Name reservation available for $60 (120 days)
- Connecticut lists LLC members/owners in the public record
- New LLC names must include a designator such as "Limited Liability Company," "LLC," "L.L.C.," "Limited Liability Co.," "Ltd. Liability Company," or "Ltd. Liability Co."
- Same-day name-availability confirmation and formation filing available through LLC Attorney at no markup on state fees
Searching Connecticut's Business Records Search is free and simple on its face, but Connecticut is genuinely one of the trickier states to self-assess — the Secretary of the State doesn't publish an official definition of what counts as "distinguishable," and the DBA system is actively transitioning from town-clerk filings to a new statewide registry in 2026.
This guide covers exactly how to search for a Connecticut business or check LLC name availability in 2026 — the Business Records Search tool, Connecticut's broader distinguishability standard, paper-only name reservation, the mid-transition DBA system under Public Act 24-111, and what a search actually reveals about an existing company.
How to Search for a Business in Connecticut
Use the Connecticut Secretary of the State, Business Services Division's Connecticut Business Records Search to search for an existing business or check whether a new LLC name is available. Search by business name, authoritative legal entity identifier (alei), filing number. The search is free.
Search directly at service.ct.gov/business/s/onlinebusinesssearch.
Connecticut's Secretary of the State notably doesn't publish an official definition of "distinguishable" the way Colorado or Georgia do — there's no public list of what does or doesn't count as a conflict, so a search result that looks borderline is genuinely harder to interpret here than in most peer states. When in doubt, call the Business Services Division directly before relying on your own read of a close match.
A result shows the business name, ALEI, filing status, and basic filing information tied to the entity. Because Connecticut's Certificate of Organization itself requires at least one principal's (member's or manager's) name, title, and address, the public record typically displays that information for at least the first several principals listed on the filing.
Checking Name Availability Before You File
The same free Business Records Search doubles as your pre-filing availability check, but because Connecticut hasn't published explicit non-distinguishing criteria, treat any borderline result as genuinely uncertain rather than a clear yes or no — a phone call to confirm can save you a rejected filing.
Connecticut's Distinguishability Standard
Conn. Gen. Stat. §34-243k requires a name to be "distinguishable and unique" on the Secretary of the State's database — a broader standard, since it applies against all other active business names, not just other LLCs. Unlike states that publish detailed examiner criteria (which words are ignored, which variations don't count), Connecticut's guidance leaves the standard largely undefined in public materials, so filers are advised to confirm directly with the Business Services Division rather than relying solely on a self-search.
Reserving a Name in Connecticut Before You Form
Name reservation available: For $60, you can reserve your chosen name for 120 days before filing.
File an Application for Reservation of Name by mail or in person with the Commercial Recording Division — Connecticut is one of the few states that doesn't offer online reservation filing. It's optional, not required to form an LLC, holds the name for 120 days, and is not renewable, so file your Articles of Organization before it lapses if the name matters to you.
Searching for DBAs and Fictitious Names in Connecticut
Connecticut's DBA (trade name) system is in the middle of a genuine structural change: historically, trade names were filed at the town clerk level (not the state), costing roughly $20 plus $5–15 for notarization, with a notarized signature required and a 5-year term with no renewal grace period. Public Act 24-111 is transitioning Connecticut to a centralized, statewide trade-name registry effective January 1, 2026 — meaning the process may be actively shifting from town-clerk to state-run during 2026. Confirm with your town clerk or the Secretary of the State's office which system currently governs your filing before you submit.
Connecticut LLC Naming Requirements
Your new LLC's name must include a designator such as "Limited Liability Company," "LLC," "L.L.C.," "Limited Liability Co.," "Ltd. Liability Company," or "Ltd. Liability Co.".
Terms implying banking or government affiliation, and licensed-profession titles (attorney, doctor, and similar) without proof of licensure, are restricted and typically require additional documentation before the Secretary of the State will accept the filing.
An Available LLC Name Isn't the Same as a Trademark-Safe Name
Connecticut's trademark and service mark registration program details weren't independently confirmed as part of this research; most states maintain a state-level trademark registration under the Model State Trademark Law framework separate from LLC entity naming, and Connecticut is understood to follow that general pattern — confirm current fees and terms directly with the Secretary of the State before relying on specifics.
Connecticut's Business Records Search only checks against other Connecticut business filings — it has no connection to federal trademark rights. Search the USPTO's Trademark Electronic Search System (TESS) separately before committing to a name, since an available Connecticut entity name provides no protection against an existing federal trademark.
What a Connecticut Business Search Reveals
Unlike many states, Connecticut's Certificate of Organization itself requires at least one member or manager's full name, title, business address, and residence address at the time of initial formation — not just a later periodic filing. The public search typically displays the first several principals listed on the record.
Connecticut lists LLC members/owners in the public record, so a search can reveal ownership information.
Getting a Connecticut Certificate of Good Standing
You can confirm an LLC's good standing status and request a Certificate of Good Standing through the same Connecticut Business Records Search, for $50 ($40 for LLPs) (not confirmed — contact the Business Services Division for current turnaround).
How to Search and Reserve Your Connecticut LLC Name
If You Do It Yourself
Step 1 — Search the Connecticut Business Records Search at service.ct.gov/business/s/onlinebusinesssearch.
Search by business name, authoritative legal entity identifier (alei), filing number to confirm your desired name isn't already taken.
Step 2 — Apply the state's distinguishability standard, not just an exact-match check.
Conn. Gen. Stat. §34-243k requires a name to be "distinguishable and unique" on the Secretary of the State's database — a broader standard, since it applies against all other active business names, not just other LLCs. Unlike states that publish detailed examiner criteria (which words are ignored, which variations don't count), Connecticut's guidance leaves the standard largely undefined in public materials, so filers are advised to confirm directly with the Business Services Division rather than relying solely on a self-search.
Step 3 — Check your name against restricted/regulated words.
Terms implying banking or government affiliation, and licensed-profession titles (attorney, doctor, and similar) without proof of licensure, are restricted and typically require additional documentation before the Secretary of the State will accept the filing.
Step 4 — Confirm your name includes a required LLC designator.
Your name must include a designator such as "Limited Liability Company," "LLC," "L.L.C.," "Limited Liability Co.," "Ltd. Liability Company," or "Ltd. Liability Co.".
Step 5 — Reserve your name for $60 if you're not ready to file yet.
File an Application for Reservation of Name by mail or in person with the Commercial Recording Division — Connecticut is one of the few states that doesn't offer online reservation filing. It's optional, not required to form an LLC, holds the name for 120 days, and is not renewable, so file your Articles of Organization before it lapses if the name matters to you.
Step 6 — Run a separate USPTO trademark search before you commit.
Connecticut's Business Records Search only checks against other Connecticut business filings — it has no connection to federal trademark rights. Search the USPTO's Trademark Electronic Search System (TESS) separately before committing to a name, since an available Connecticut entity name provides no protection against an existing federal trademark.
Step 7 — File your formation documents promptly once you've confirmed availability.
If you didn't reserve the name, nothing holds it for you — another filer could take it first.
Step 8 — Watch for Connecticut-specific search quirks.
Connecticut's Certificate of Organization requires listing at least one member or manager's name and address at formation — earlier and more directly than most states, which typically defer that disclosure to a later annual filing. The DBA system is also mid-transition: Public Act 24-111 moves Connecticut from town-clerk-level trade name registration to a centralized statewide registry effective January 1, 2026, so double-check which system is live before you file.
If LLC Attorney Does It for You
- Submit your desired business name at llcattorney.com along with one or two backup options.
- LLC Attorney runs the Connecticut name-availability search, checks it against restricted-word rules, and confirms your designator is correctly formatted before filing.
- Receive confirmation once your name is filed, plus access to flat-fee attorney consultations (no retainer) if a trademark conflict or distinguishability question comes up.
When Should You Talk to an Attorney About Your Connecticut LLC Name?
Talk to an attorney before finalizing your Connecticut LLC name if a search result looks like a borderline conflict — since Connecticut doesn't publish explicit distinguishability criteria the way some states do, a professional read (or a call to the Business Services Division) is genuinely more valuable here than in most states. Also consult if you're registering a DBA during 2026 and want to confirm whether the town-clerk process or the new statewide registry under Public Act 24-111 currently applies to your filing.
Is Connecticut a State Where Name Clearance Complexity Matters More?
Connecticut is one of the more genuinely complicated states to search right now. The Secretary of the State doesn't publish an official definition of "distinguishable," so a borderline result is harder to self-assess than in states with published examiner criteria. Name reservation is paper-only — no online filing option, unusual among peer states — and costs more than most at $60. On top of that, Connecticut's DBA system is actively transitioning from a town-clerk-based process to a centralized statewide registry under Public Act 24-111, effective January 1, 2026, so the correct filing process may differ depending on exactly when you're reading this.
What You Actually Get With LLC Attorney's Connecticut Name Search
Connecticut's undefined distinguishability standard means a self-assessed "close enough" call is riskier here than in states with published criteria. LLC Attorney treats borderline Connecticut names with extra scrutiny as part of every formation order, rather than assuming a clean self-search settles it.
- A Connecticut name-availability search run for you before you pay any state filing fee.
- Restricted-word and distinguishability screening, so your filing isn't rejected for a naming issue you didn't know about.
- Formation starting at $49, with your confirmed name filed the same day where the state allows it.
- Access to professionally trained Business Success Advisors at no charge, plus flat-fee attorney consultations (no retainer) for trademark-conflict questions.
Connecticut's paper-only reservation and shifting DBA rules make timing and process matter more than usual — LLC Attorney keeps your filing aligned with whichever system is currently in effect.
Ready to Form Your Connecticut LLC?
Once you've confirmed your name is available, LLC Attorney can handle the rest of your Connecticut LLC formation, starting at $49. See our full pricing for all service tiers.
Frequently Asked Questions
Yes. Connecticut's Business Records Search through the Secretary of the State is free, with no account required.
Search the same free Business Records Search, but treat a borderline result with real caution — Connecticut doesn't publish an official definition of "distinguishable" the way several peer states do, so calling the Business Services Division to confirm is genuinely worthwhile before you file.
Yes, though it's paper-only. An Application for Reservation of Name costs $60, must be filed by mail or in person (no online option), lasts 120 days, and is not renewable.
Yes — Connecticut's Certificate of Organization requires at least one member or manager's full name, title, and address at initial formation, and that information typically appears in the public search results.
Order a Certificate of Legal Existence through the Secretary of the State for $50 ($40 for LLPs). Confirm current turnaround directly with the Business Services Division, since it wasn't consistently published at the time of this research.
It depends on timing. Connecticut's trade name registration has historically run through individual town clerks, but Public Act 24-111 transitions the state to a centralized statewide registry effective January 1, 2026 — confirm with your town clerk or the Secretary of the State which system currently applies before filing.
Your Connecticut LLC name must include "Limited Liability Company," "LLC," or an approved abbreviation, and be "distinguishable and unique" from all other active business names on record — a broader comparison than states that only check against other LLCs.
No. Connecticut's Business Records Search only checks against other Connecticut business filings, not the USPTO's federal trademark database. Search TESS separately before committing to a name that matters to your brand.
Yes. LLC Attorney runs a Connecticut name-availability search as part of every formation order, and flags any restricted-word or distinguishability issue before you pay a filing fee.