To find where a company is incorporated, search the business registry of the state where it was likely formed, or, for a publicly traded company, look at the cover page of its most recent Form 10-K on the SEC’s EDGAR system. Both sources are free and public. The catch is that a company’s state of incorporation is often not the state where it has its headquarters or employees, so you may need to search more than one registry before you find the right one.
Check Delaware Before Anywhere Else
More than 60% of Fortune 500 companies and over half of all publicly traded U.S. companies are incorporated in Delaware, even though most have no physical presence there. Delaware’s Court of Chancery uses judges who specialize in corporate disputes rather than juries, and its corporate statutes and tax treatment on out-of-state revenue make it the default choice for large and venture-backed companies.
So a company headquartered in California with all its employees in Texas might be incorporated in Delaware. If the state where a company operates turns up nothing, check Delaware next. Nevada and Wyoming are also common choices for smaller companies looking for privacy protections and low fees, so try those if Delaware comes up empty.
Search the State Business Registry
Every state maintains a searchable online database of business entities registered within its borders, and these registries are the authoritative source for state of incorporation. The National Association of Secretaries of State keeps a directory of links to each state’s business search portal at nass.org, which saves time hunting for the right agency.
Most states put these records under the Secretary of State’s office, but not all. Arizona uses its Corporation Commission. New York uses the Department of State. Virginia uses the State Corporation Commission. Hawaii assigns the job to its Department of Commerce and Consumer Affairs. If a search for “[state] Secretary of State business search” leads nowhere, the filing agency probably goes by a different name.
Once you’re on the right site, look for a link labeled “Business Search,” “Entity Search,” or “Corporation and Business Entity Database.” You can usually search by legal name, and some states also allow searches by entity number or registered agent name. A typical result shows:
- Entity type (corporation, LLC, limited partnership, or another form)
- State of formation
- Date of formation
- Current status (active, inactive, or dissolved)
- Registered agent, meaning the person or company designated to receive legal documents on the entity’s behalf
Basic searches are free in most states. Certified copies of formation documents or a Certificate of Good Standing carry a fee that varies by state.
Domestic Versus Foreign Registration
This is where people get tripped up. A company is “domestic” only in its state of incorporation. In every other state where it operates, it registers as a “foreign” entity through a process called foreign qualification. If you find a company listed as a foreign corporation, it was incorporated somewhere else, and the registry entry will usually name the original state of incorporation and the date it was formed there.
A company registered in three different states did not incorporate three times. It almost certainly incorporated once and then registered as foreign in the other two. Look for the one state where it appears as a domestic entity to find its true state of incorporation.
Use SEC EDGAR for Publicly Traded Companies
If the company trades on a stock exchange, EDGAR is faster than any state registry. The SEC’s filing search gives free access to millions of regulatory filings.1U.S. Securities and Exchange Commission. Search Filings
Enter the company’s name or ticker symbol. Each publicly traded company has a Central Index Key (CIK), a unique identifier that stays the same even if the company changes its name, so it’s the most reliable way to track filings over time.2U.S. Securities and Exchange Commission. CIK Lookup
Open the company’s most recent Form 10-K, the annual report every publicly traded company must file. The state of incorporation appears on the cover page in a field labeled “State or other jurisdiction of incorporation or organization.”3U.S. Securities and Exchange Commission. Form 10-K You don’t need to read any further into the document. If a company recently changed its state of incorporation or amended its charter, that change also appears in a Form 8-K, which companies use to report significant corporate events.4U.S. Securities and Exchange Commission. 8-K Amendment to Restated Certificate of Incorporation
Non-Profit Organizations
Non-profits incorporate at the state level like for-profits, so state registries work the same way. They also have an extra public source: their IRS filings.
The IRS requires tax-exempt organizations to file Form 990 annually, and that form includes a field labeled “State of legal domicile” on its first page.5Internal Revenue Service. Return of Organization Exempt From Income Tax – Form 990 You can access these filings through the IRS Tax Exempt Organization Search tool, which lets you look up organizations by name or Employer Identification Number and view copies of their 990s.6Internal Revenue Service. Tax Exempt Organization Search
When You Can’t Find Any Record
Not every business is a corporation or LLC. If a company doesn’t turn up in any state’s business registry or on EDGAR, it may not be incorporated at all. Sole proprietorships and general partnerships don’t file incorporation documents because they are not separate legal entities from their owners. They operate under the owner’s name or a “doing business as” (DBA) name.
DBA filings, sometimes called fictitious business name filings, are typically recorded at the county level rather than the state level. Searching the county clerk’s office where the business operates may turn up a DBA filing that reveals the owner’s legal name. But a DBA is not incorporation. It just links a business name to a person or an existing legal entity, and it offers no separation between the owner’s personal assets and business liabilities. If you’re doing legal due diligence and can’t find incorporation records anywhere, the business may simply be a sole proprietorship.
Industry Regulators and Other Fallbacks
Some regulated industries maintain their own databases that include charter details. Banks and other financial institutions are tracked by the FDIC’s BankFind Suite, which lets you search FDIC-insured institutions back to 1934 by name, location, or charter number.7FDIC. BankFind Suite – Find Insured Banks Insurance companies are typically registered with their home state’s department of insurance, and broker-dealers can be looked up through FINRA’s BrokerCheck.
If likely state registries and EDGAR turn up nothing, a few other approaches help narrow things down. A company’s own website sometimes discloses its state of incorporation in its terms of service or privacy policy, usually in the governing law or dispute resolution clause. A sentence like “this agreement shall be governed by the laws of the State of Delaware” is a strong hint, though governing law does not always match incorporation state.
Third-party aggregators like OpenCorporates pull business entity data from government registries in all 50 states and more than 140 jurisdictions into a single search interface. Searching there can save you from checking state registries one at a time when you have no idea where to start. Treat what you find as a lead and confirm it through the official state registry, because aggregated data can lag behind real-time government records.
The registered agent listed in a state filing is another useful clue. Every state requires a business entity to designate someone to receive lawsuits and legal notices on its behalf.8Legal Information Institute (LII) / Cornell Law School. Agent for Service of Process If you find a company’s registered agent in one state, that agent’s records or website may list other states where the same company is registered, which can help you trace back to where it was originally incorporated.