Secretary of State, SEC EDGAR, USASpending, Senate lobbying disclosures.
Every US state maintains a public registry of businesses. Filed.dev lets you search across all 50 states from one place — enter a company name and state to find entity details, filing status, and formation date.
Check that the business has an active registration with its state. Look for "Active" or "Good Standing" status, a reasonable formation date, and a registered agent on file.
LLCs offer flexible structure with pass-through taxation — popular for small businesses. Corporations are more formal with shareholders and directors — required for companies planning to go public or raise venture capital.