How to Search Connecticut Business Records

Connecticut's business entity records are maintained by the Connecticut Secretary of the State, Commercial Recording Division. Every LLC, corporation, limited partnership, and nonprofit that formally registers in Connecticut receives a public record in the state's business database.

Connecticut is a significant state for business formation despite its smaller geographic size. Located in the heart of the Northeast corridor between New York City and Boston, Connecticut is home to major corporate headquarters, a strong financial services sector, and a thriving small business community.

The Connecticut Secretary of the State is responsible for:

• Registering new business entities (LLCs, corporations, partnerships, nonprofits)
• Maintaining the business entity database with current information on all registered entities
• Processing annual reports
• Recording amendments, mergers, dissolutions, and name changes
• Providing public access to business entity records through the CONCORD online database

Key facts about Connecticut business records:

• CONCORD database: Connecticut's official online business search tool is called CONCORD (Connecticut Online Corporate Database). It is accessible at concord-sots.ct.gov.
• Business ID format: Connecticut assigns each entity a unique Business ID number, which is a numeric identifier. This is the most reliable way to find a specific entity.
• Annual report cycle: Connecticut requires most entities to file annual reports. The due date depends on the entity type and formation date.
• Strong corporate presence: Connecticut is home to major corporations in insurance (Hartford is known as the "Insurance Capital of the World"), financial services, defense, and pharmaceuticals. Companies like Aetna, United Technologies (now Raytheon Technologies), and numerous hedge funds are based in the state.

Whether you are verifying a Connecticut business, conducting due diligence on a Stamford-based hedge fund, or building an application that needs CT entity data, this guide covers the full process.

CONCORD (Connecticut Online Corporate Database) is the official public-facing database maintained by the Connecticut Secretary of the State's Commercial Recording Division. It provides free access to all business entity records filed with the state.

What you can find in CONCORD:

• Business Name — The legal name as registered with the state (e.g., "Greenwich Capital Partners LLC")
• Business ID — Connecticut's unique entity identifier
• Entity Type — The legal structure: Connecticut LLC, Stock Corporation, Nonstock Corporation, etc.
• Status — Active, Withdrawn, Dissolved, Forfeited, etc.
• Formation Date — When the entity was originally filed
• Jurisdiction — For foreign entities, the state or country of original formation
• Registered Agent — The person or company designated to receive legal documents, along with their Connecticut address
• Principal Office Address — The entity's primary business address
• Officers/Directors/Managers — Names and sometimes titles of people who manage the entity

CONCORD also tracks filing history, including amendments, annual reports, and mergers. The interface is functional, though it is designed for individual lookups rather than bulk data retrieval.

Accessing CONCORD:

The CONCORD database is available online at concord-sots.ct.gov/CONCORD/online. The search interface allows lookups by business name, Business ID, and registered agent name. It is free to use.

Here is a detailed walkthrough of how to search for a business entity using Connecticut's CONCORD database:

Step 1: Navigate to the CONCORD search page

Go to concord-sots.ct.gov/CONCORD/online. This is the main search interface for Connecticut business entity records.

Step 2: Choose your search method

CONCORD offers several search options:

• Business Name Search: The most common method. Enter the full or partial business name. CONCORD supports "starts with" and "contains" matching.
• Business ID Search: If you have the entity's Business ID, enter it for an exact match. This is the fastest and most reliable search method.
• Registered Agent Search: Search by the name of the entity's registered agent.
• Officer Search: Look up entities by officer or director name.

Step 3: Review the results list

The search returns a list of matching entities showing the business name, Business ID, type, and status. Click on an entity to view its full record.

Step 4: Review the entity detail page

The detail page contains the complete public record for the entity:

• Filing Information: Entity type, Business ID, formation date, status, and jurisdiction
• Registered Agent: Name and address of the designated agent for service of process
• Principal Office: The entity's primary business address
• Officers/Directors/Managers: Names and sometimes addresses of people managing the entity

Tips for effective CONCORD searches:

• Use the Business ID whenever possible. It is unique and returns an exact match.
• Drop entity suffixes for broader results. Search for "Greenwich Capital" instead of "Greenwich Capital Partners LLC."
• Check for both domestic and foreign registrations. A company may be registered in Connecticut as a foreign entity — meaning it was formed in Delaware or another state but is authorized to operate in CT.
• Connecticut is case-insensitive in search. You can enter the name in any case.
• Many Fairfield County businesses are Delaware incorporations. Companies in Stamford, Greenwich, and Norwalk (particularly financial services firms) often incorporate in Delaware and register as foreign entities in Connecticut.

Connecticut uses specific designations for different entity types in the CONCORD database. Understanding these labels helps you interpret search results correctly.

Domestic entities (formed in Connecticut):

• Connecticut Limited Liability Company — An LLC formed in Connecticut. This is the most common entity type for new formations in the state.
• Stock Corporation — A for-profit corporation formed in Connecticut. Called a "stock corporation" because it issues shares of stock to its owners.
• Nonstock Corporation — A nonprofit or membership corporation formed in Connecticut that does not issue stock. Used for charities, trade associations, and community organizations.
• Connecticut Limited Partnership — An LP formed in Connecticut, with general and limited partners.
• Connecticut Limited Liability Partnership — An LLP formed in Connecticut, commonly used by law firms and accounting practices.
• Statutory Trust — A trust entity formed under Connecticut's statutory trust act.

Foreign entities (formed outside Connecticut, registered to do business here):

• Foreign Limited Liability Company — An LLC formed in another state or country, authorized to operate in Connecticut.
• Foreign Stock Corporation — A for-profit corporation formed elsewhere, registered in Connecticut.
• Foreign Nonstock Corporation — A nonprofit formed elsewhere, registered in Connecticut.
• Foreign Limited Partnership — An LP formed elsewhere, registered in Connecticut.
• Foreign Limited Liability Partnership — An LLP formed elsewhere, registered in Connecticut.

Other designations you may encounter:

• Trade Name — Connecticut's equivalent of a DBA ("Doing Business As"). Businesses operating under a name different from their legal name must file a trade name certificate.
• Professional Corporation (PC) — For licensed professionals such as doctors, lawyers, and accountants.
• Benefit Corporation — A relatively newer entity type that allows for-profit corporations to pursue social benefit in addition to shareholder value.

Entity type distribution in Connecticut:

Domestic LLCs and Foreign Stock Corporations make up the largest share of the CONCORD database. The high number of foreign corporations reflects Connecticut's proximity to major formation states — particularly Delaware — and the tendency of financial services firms in Fairfield County to incorporate in Delaware while maintaining Connecticut operations.

Connecticut requires most registered business entities to file an annual report to maintain their active status.

Key facts about Connecticut annual reports:

• Due date: Annual reports are generally due by the last day of the month in which the entity was originally formed. For example, an LLC formed in March must file by March 31 each year.
• Filing fee: The fee varies by entity type. LLCs pay approximately $80, and corporations pay approximately $150.
• Consequence of non-filing: Entities that fail to file their annual report are subject to administrative dissolution or forfeiture. Connecticut may revoke or forfeit the entity's right to do business in the state.
• Online filing: Annual reports can be filed online through the Secretary of the State's website.

What the annual report updates:

• Connecticut annual reports confirm or update the following:
• Entity name (or confirm it remains the same)
• Registered agent name and address
• Principal office address
• Officer, director, or manager names

Checking annual report status in CONCORD:

On an entity's detail page in CONCORD, you can see the entity's current status and whether it is up to date on filings. A status of "Forfeited" typically indicates the entity has failed to file required reports.

Annual report data via the Filed API:

curl "https://api.filed.dev/v1/entity/ct-0001234567" \
  -H "Authorization: Bearer your_api_key"

{
  "id": "ct-0001234567",
  "name": "GREENWICH CAPITAL PARTNERS LLC",
  "state": "CT",
  "type": "Connecticut Limited Liability Company",
  "status": "Active",
  "filing_date": "2018-05-14",
  "filing_number": "0001234567",
  "registered_agent": {
    "name": "CT Corporation System",
    "address": "67 Burnside Ave, East Hartford, CT 06108"
  }
}

The Filed API returns the most current information from Connecticut's CONCORD database, including data from the latest annual report filing.

If you need Connecticut business data programmatically — for application integrations, bulk verification, compliance workflows, or CRM enrichment — the Filed API provides a direct alternative to the CONCORD website.

Example: Search Connecticut businesses by name

curl "https://api.filed.dev/v1/search?q=Greenwich+Capital&state=CT" \
  -H "Authorization: Bearer your_api_key"

Response:

{
  "results": [
    {
      "id": "ct-0001234567",
      "name": "GREENWICH CAPITAL PARTNERS LLC",
      "state": "CT",
      "type": "Connecticut Limited Liability Company",
      "status": "Active",
      "filing_date": "2018-05-14",
      "filing_number": "0001234567",
      "registered_agent": {
        "name": "CT Corporation System",
        "address": "67 Burnside Ave, East Hartford, CT 06108"
      }
    }
  ]
}

Example: Cross-state search for a company in CT and Delaware

# Many CT companies are incorporated in Delaware
curl "https://api.filed.dev/v1/search?q=Greenwich+Capital&state=CT,DE" \
  -H "Authorization: Bearer your_api_key"

Why use the API instead of CONCORD:

• Structured JSON output. CONCORD returns HTML pages. The API returns clean JSON you can parse and store.
• Normalized across states. Connecticut entity types are returned in the same schema as every other state.
• Bulk lookups. Verify thousands of CT entities without manual searches.
• Cross-state search. Search Connecticut and Delaware simultaneously — essential for finding DE-incorporated companies operating in CT.
• Same API for every state. One integration covers Connecticut and all other supported states.

Use the CONCORD database when:

• You need to look up a single Connecticut business as a one-off task.
• You need to file documents with the Connecticut Secretary of the State.
• You need official certificates or certified copies.
• You need to search trade name registrations.

Use the Filed API when:

• You are building an application that requires Connecticut business verification.
• You need to search CT entities alongside other states in a single workflow.
• You process more than a few CT lookups per week and need structured data.
• You want to integrate Connecticut business data into your CRM, ERP, compliance system, or onboarding flow.
• You need consistent data formatting without scraping HTML.

Feature comparison:

For developers and businesses that need Connecticut entity data at scale, the API is the practical choice. For occasional research or filing paperwork, CONCORD works fine.

Here are real-world scenarios where you would search Connecticut business records:

Scenario 1: Verifying a Stamford-based financial services firm

You are conducting due diligence on a hedge fund or financial firm based in Stamford or Greenwich.

1. Search CONCORD (or the API) by the company name.
2. Confirm the entity exists and its status is "Active."
3. Note whether it is a domestic or foreign entity — many Fairfield County financial firms are Delaware LLCs or corporations registered as foreign entities in Connecticut.
4. Check the registered agent and principal office address.
5. Review officers and directors listed in the record.

Scenario 2: Service of process on a Connecticut LLC

You need to serve legal papers on a Connecticut LLC.

1. Search for the entity by name or Business ID.
2. Find the registered agent name and address.
3. Serve the registered agent at the listed address.
4. If the registered agent has resigned or cannot be found, Connecticut law allows substituted service through the Secretary of the State.

Scenario 3: Checking name availability before forming a Connecticut LLC

You want to register a new LLC in Connecticut.

1. Search CONCORD by entity name.
2. Connecticut requires each entity name to be distinguishable from existing names.
3. Also check trade name registrations for conflicts.

Scenario 4: Bulk verification of Connecticut businesses

Your compliance team needs to verify hundreds of CT-based entities.

# Verify multiple CT businesses programmatically
for company in "HARTFORD INSURANCE GROUP" "GREENWICH ADVISORY LLC" "NEW HAVEN BIOTECH"; do
  curl -s "https://api.filed.dev/v1/search?q=$(echo $company | tr ' ' '+')&state=CT" \
    -H "Authorization: Bearer your_api_key" | jq '.results[0] | {name, status, filing_number}'
done

Connecticut's business database, combined with the Filed API for programmatic access, provides all the data you need for entity verification, legal research, and compliance workflows. For the latest Connecticut entity data and field coverage, see our Connecticut state coverage page.