Connecticut Business Entity Search: How to Look Up LLCs & Corporations (2026)

Need to look up a business in Connecticut? The Connecticut Secretary of State maintains a free online database where you can search for LLCs, corporations, partnerships, and other business entities registered in the state. Whether you’re checking if a business name is available, verifying a company’s legal status, or conducting due diligence before a transaction, the Connecticut Business Entity Search tool gives you instant access to public records.

This guide shows you exactly how to use Connecticut’s official business entity search, what information is available, and how to interpret the results.

Connecticut Business Entity Search: Key Facts

Detail	Information
Search Tool	Connecticut Business Entity Search
Agency	Connecticut Secretary of State
Search By	Business Name, Business Id
Cost	Free
Filing Portal	Connecticut Business One-Stop

How to Search for a Business Entity in Connecticut

Step 1: Go to the Connecticut Business Entity Search

Navigate to the official Connecticut business entity search page at https://service.ct.gov/business/s/onlinebusinesssearch. This is the Connecticut Secretary of State’s official search tool — make sure you’re on the correct government website to avoid third-party services that may charge unnecessary fees.

Step 2: Choose Your Search Method

The search tool lets you look up businesses by business name, business ID. For most searches, entering the business name is the quickest approach. If you have the entity’s filing number or ID, using that will return an exact match.

Tip: When searching by business name, use partial names if you’re not sure of the exact legal name. For example, searching for “Smith” will return all entities with “Smith” in the name, including “Smith Consulting LLC,” “Smith & Associates Inc.,” and similar variations.

Step 3: Review the Search Results

The search results will display a list of matching entities. Each listing shows the entity name, type (LLC, corporation, etc.), and current status. Click on an entity name to view its full details, including formation date, registered agent information, and filing history.

Step 4: Interpret the Entity Status

Pay close attention to the entity status, which indicates whether the business is currently authorized to operate:

• Active / Good Standing — The entity is current on all filings and authorized to do business in Connecticut
• Inactive / Dissolved — The entity has been voluntarily dissolved or failed to meet compliance requirements
• Revoked / Forfeited — The entity’s authority has been revoked, typically for failure to file required reports or pay fees
• Cancelled / Withdrawn — The entity has been cancelled or withdrawn from registration in Connecticut

Step 5: Download or Save the Results

Once you find the entity you’re looking for, save or print the results for your records. Some states allow you to download filing documents directly from the search results. For certified copies or certificates of good standing, you may need to submit a separate request (often for a small fee).

What Information Is Available in the Connecticut Business Search?

The Connecticut Business Entity Search provides the following public information for registered business entities:

• Entity Name And Type — entity name and type
• Business Id — business ID
• Status — status
• Formation Date — formation date
• Registered Agent — registered agent
• Principal Office — principal office
• Annual Report History — annual report history

Connecticut recently modernized its online business filing system. The Business One-Stop portal provides a streamlined experience for searching entities and managing business filings.

Why Search for a Business Entity in Connecticut?

Check If a Business Name Is Available

Before forming an LLC or corporation in Connecticut, you must choose a name that is distinguishable from existing registered entities. The business entity search tool is the fastest way to check name availability. If your desired name is already taken, you’ll need to choose a different name or modify it sufficiently to be considered unique.

Verify a Company’s Legal Status

If you’re considering doing business with a company, the entity search confirms whether that company is legally authorized to operate in Connecticut. A company that shows as dissolved, revoked, or inactive may not be able to enter into enforceable contracts or conduct business legally in the state.

Conduct Due Diligence

Whether you’re a potential investor, partner, vendor, or customer, verifying a company’s registration status is a basic due diligence step. The search results show when the company was formed, whether it’s current on filings, and who the registered agent is — all important pieces of information for business decisions.

Find Registered Agent Information

If you need to serve legal documents to a business entity in Connecticut, the entity search provides the registered agent’s name and address. The registered agent is the official point of contact for receiving legal notices and service of process.

Research Competitors

The business entity search can help you understand the competitive landscape. You can see when competitors were formed, whether they’re in good standing, and in some states, who the officers or managers are.

Need to Start Your Own LLC in Connecticut?

If you’ve searched the Connecticut Business Entity Search and confirmed your desired business name is available, the next step is forming your LLC. You can file directly with the Connecticut Secretary of State, or use a professional formation service to handle the paperwork for you.

A formation service takes care of filing your formation documents, providing a registered agent, and setting up compliance reminders — so you can focus on building your business instead of navigating government forms.

Tips for Using the Connecticut Business Entity Search

• Try multiple search variations — Search for “LLC,” “L.L.C.,” and the name without any suffix to cast a wider net
• Use the entity number for exact results — If you have the filing number or entity ID, use it for a precise match
• Check the status date — An “active” status only means the entity is current as of the last update. Database updates may lag a few days behind actual filings
• Bookmark the search page — Save https://service.ct.gov/business/s/onlinebusinesssearch for quick access to future searches
• Understand “similar” vs. “identical” — Most states require names to be “distinguishable,” not just different. Names that are very similar to existing entities may be rejected even if they’re not identical

Frequently Asked Questions

Is the Connecticut business entity search free?

Yes, the Connecticut Business Entity Search is completely free to use. You can search for any registered business entity at https://service.ct.gov/business/s/onlinebusinesssearch without creating an account or paying a fee. Certified copies of documents or certificates of good standing may require a small fee.

What types of businesses can I find in the Connecticut business search?

The Connecticut Business Entity Search includes all business entities registered with the Connecticut Secretary of State, including LLCs (limited liability companies), corporations, limited partnerships (LPs), limited liability partnerships (LLPs), and other entity types. Both domestic (formed in Connecticut) and foreign (formed elsewhere but registered in Connecticut) entities are included.

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

Go to https://service.ct.gov/business/s/onlinebusinesssearch and search for your desired business name. If no active entity appears with the same or a very similar name, the name is likely available. For a definitive name availability check, you can file a formal name reservation with the Connecticut Secretary of State.

How often is the Connecticut business entity database updated?

The Connecticut Business Entity Search database is typically updated within 1-3 business days of a filing being processed. New entity registrations, annual reports, and status changes are reflected after processing. For the most current information on a specific entity, contact the Connecticut Secretary of State directly.

Can I file my LLC formation documents through the Connecticut business search tool?

The search tool itself is for looking up existing entities. However, the Connecticut Business One-Stop typically provides a link to the filing system where you can submit formation documents, annual reports, and other filings. Alternatively, you can use a formation service like Northwest Registered Agent or ZenBusiness to handle the filing for you.

Related Guides

• How to Start an LLC in Connecticut
• Best LLC Formation Services 2026
• Best Registered Agent Services 2026
• New York Business Entity Search
• Massachusetts Business Entity Search
• Rhode Island Business Entity Search

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