Business entity filings — corporations, LLCs, partnerships — are registered at the state level with the Secretary of State. There is no single national business registry.
What this page covers: Federal business databases (SEC filings, SBA) and links to multi-state corporate search tools. What it does not cover: Individual state business entity searches (those are on each state page).
Where to start: For publicly traded companies, start with SEC EDGAR. For general business searches, go to the Secretary of State for the state of incorporation.
Common mistake: A business can be incorporated in one state and operate in another. Check Delaware — many companies incorporate there for legal reasons.
