Connecticut Business Entity Search (2026)

Fact-checked by the LegalGlass editorial team against primary sources · Published Aug 6, 2026 · Last updated Aug 6, 2026

You search Connecticut companies for free using the Secretary of the State's business records search at business.ct.gov. Enter a name or business ID to return the entity's legal name, status, entity type, principal office, and registered agent — the standard way to confirm a name is available and check standing before filing.

The Connecticut Business Records Search Tool

Connecticut business filings are held by the Secretary of the State, Business Services Division, and the public search runs on the modern portal at business.ct.gov. The records search is free and needs no account. You can look up any corporation, LLC, limited partnership, or other registered entity, including domestic entities and foreign entities qualified to do business in the state.

Search by full name, by a keyword within a name, or by the entity's business ID. It is the same registry you use to check name availability before forming a company, so it is a natural first step in forming a Connecticut LLC. For the national view, see the business entity search hub.

What the Search Returns

A record typically shows the exact legal name, the business ID (Connecticut assigns an ALEI, an Administrative Legal Entity Identifier), the entity type, current status, the date of formation or registration, the principal and mailing addresses, and the name and address of the registered agent. Many records also list a business email and NAICS code.

Status matters: "Active" generally means the entity has met its obligations, while other statuses can flag an overdue annual report or a dissolved entity. Because Connecticut requires an annual report, checking status quickly gauges whether a company is current with the state.

Checking Name Availability

Before filing, use the search to confirm your name is distinguishable from existing entities. Connecticut, like other states, rejects a name that is identical or too similar to one already in use or reserved. Searching first avoids a rejected filing. If a name is available and you are not ready to file, you can reserve it with the Secretary of the State.

A clear entity search does not grant trademark rights. A name can be free in the registry yet conflict with a federal trademark. Run a separate USPTO clearance for brand names and see how to trademark a name. For the trade-name route, review Connecticut DBA filing.

Good Standing and Official Certificates

The free search shows status, but banks, lenders, or expansion into another state often require an official Certificate of Legal Existence (Connecticut's term for a certificate of good standing). You order it through business.ct.gov for a fee; it certifies the entity exists and has filed required reports. Other states call the equivalent a certificate of existence or status.

You typically need a Certificate of Legal Existence when you register as a foreign LLC elsewhere, seek financing, or sell the business. Keeping your annual report and registered agent current is what keeps the certificate available on demand.

Common Uses for the Search

Owners and the public use the search to verify a contracting party is a real, active entity; to find a registered agent for service of process; to research competitors; to confirm the spelling and legal form of a name; and for due diligence before a purchase. Researchers also trace corporate history through it.

If you are starting out, the search pairs naturally with getting an EIN, choosing a structure in our S-corporation vs LLC guide, and understanding business tax obligations administered by the Department of Revenue Services.

From Search to Registration

Once your name clears, forming a Connecticut entity is done online at business.ct.gov. A domestic LLC files a Certificate of Organization and pays the state fee; a corporation files a Certificate of Incorporation. You must list a Connecticut registered agent who agrees to accept service of process. See Connecticut Certificate of Organization for the document details.

After registration, the entity appears in the same search you started with, and it must file an annual report to stay active. Budget for ongoing costs in how to form an LLC in Connecticut, and register for state taxes where applicable.

Beyond the Basic Search

The entity search is also a due-diligence tool. Before signing a contract, taking on a vendor, or buying a business, run the counterparty through the Connecticut search to confirm it is a real, active entity in good standing, and to verify the exact legal name for your paperwork. A mismatch between the name on a contract and the registered name can create enforcement problems later.

Use the search to locate a company's registered agent when you need to serve legal process or send formal notice. The agent's name and address are part of the public record precisely so the public can reach the entity. If an agent has resigned or the record is stale, that itself can be a useful signal about the company's compliance.

For your own company, check your record periodically to confirm your filings posted correctly and your address and agent are current. Errors in the public record can delay financing, licensing, or a sale. Keeping the record accurate goes hand in hand with filing your annual report on time.

Remember the limits of a search. It shows what is filed with the state, not everything about a business: it does not reveal pending litigation, tax liens outside the registry, or trademark conflicts. Pair the entity search with a USPTO trademark search and, for major deals, a broader background check.

When you are ready to move from research to launch, the same portal that hosts the search handles formation. Reserve or register your cleared name, appoint your agent, and file. From there, getting an EIN and registering for state taxes with the Department of Revenue Services complete the setup. See how to form an LLC in Connecticut for the full path.

Understand the difference between a search result and a certified record. The free online search is perfect for quick verification, but courts, banks, and other states often insist on a certified copy or a Certificate of Legal Existence bearing the Secretary of the State's seal. Order those official documents through the portal when a counterparty specifically requires certification rather than a screenshot.

Use the search to catch impersonation and typos early. Confirming the exact registered spelling, entity type, and business ID before you print contracts, checks, or marketing materials prevents small errors that are expensive to correct later. It also helps you spot look-alike names that could confuse customers or signal a competitor operating close to your brand.

Pair the entity search with the right follow-on filings. Once your name clears, you will typically reserve or register it, appoint a Connecticut registered agent, and file your formation document, then obtain an EIN and open a bank account. Treat the search as step one of a short, ordered checklist rather than a stand-alone task.

Finally, build entity searches into your ongoing operations. Vendors dissolve, agents resign, and companies fall out of good standing over time, so re-checking a key partner's status periodically is sound practice. The Connecticut registry is free and updated as filings post, making it a low-effort, high-value tool for continuous due diligence across the life of your business.

Frequently Asked Questions

Is the Connecticut business entity search free?

Yes. The Secretary of the State's business records search at business.ct.gov is free and needs no account. Official certificates, such as a Certificate of Legal Existence, carry a separate fee.

What information does the search show?

It returns the entity's legal name, business ID (ALEI), entity type, status, formation date, principal and mailing addresses, and the registered agent's name and address.

How do I check if a business name is available in Connecticut?

Search the name at business.ct.gov. If no identical or confusingly similar active or reserved name appears, the name is generally available to register.

What is a Certificate of Legal Existence?

It is Connecticut's certificate of good standing, ordered through business.ct.gov for a fee. It certifies the entity exists and is current with filings, often needed for banking or foreign registration.

Which agency maintains Connecticut business records?

The Connecticut Secretary of the State, Business Services Division, maintains the registry and runs the search at business.ct.gov.

Related

• Business entity search (hub)
• How to form an LLC in Connecticut
• Connecticut registered agent
• Connecticut annual report
• Connecticut Certificate of Organization
• How to trademark a name

Sources

1. Connecticut Secretary of the State — Business Records Search (free public entity search).
2. Connecticut Secretary of the State — Business Services (filings and records).
3. Connecticut — Order Documents and Certificates (Certificate of Legal Existence).
4. Connecticut — Start Your Business (online registration).
5. Connecticut Dept. of Revenue Services — Business Tax Overview (state business taxes).
6. Connecticut — Annual Report Filing (keeping status active).
7. Connecticut General Assembly — Chapter 613a, Uniform LLC Act (Connecticut LLC statute).
8. IRS — Limited Liability Company (LLC) (federal default classification).
9. IRS — Business Structures (entity types overview).
10. IRS — Get an Employer Identification Number (EIN is free; issued by the IRS).
11. Cornell LII — 26 CFR § 301.7701-3 (entity classification election).
12. USPTO — Search Trademark Database (clearance search before filing).
13. Cornell LII — Registered Agent (role and service of process).
14. Cornell LII — Good Standing (certificate of existence).

LegalGlass provides general information for educational purposes and is not a law firm or a substitute for advice from a licensed attorney or tax professional. Laws, fees, and thresholds change; verify current requirements with the Connecticut Secretary of the State and the Department of Revenue Services before acting.