1. Establish the name you are researching
A brand, website name and legal entity name can be different. Begin with the legal name shown in a company’s documents, together with a location, stock ticker or registration identifier. Keep spelling variants in mind, but do not assume similar names refer to the same organization.
2. Choose the source that answers your question
To research state registration, use the relevant official business registry. To research published securities filings, use SEC EDGAR. A company may be registered in more than one state. Its business address does not, by itself, tell you where it was incorporated.
3. Search and compare identifiers
Use this directory to search by name, ticker or SEC CIK. Open a result and compare the identifier, reported address and incorporation jurisdiction, where available. A CIK identifies an SEC filer. State registration numbers belong to their own registries; keep the jurisdiction together with the number.
4. Read the original documents
Follow the source links. Look at filing dates and reporting periods, and consider whether newer documents are available. A record may reflect an earlier address or name. For SEC records, an annual report, quarterly report or current report can help explain the business beyond its directory listing.
5. Record what you found and what remains unknown
Keep the source link and the date you checked it. Separate recorded facts from your conclusions. If a company is absent from this directory, search its state registry rather than concluding that it does not exist. Confirm licensing, ownership or other specialized questions with the appropriate source.