EntitySearchus

There is no single national company registry in the United States. EntitySearch.us is a free, independent directory of business entity search guides for all 50 states and Washington, D.C. Each guide links to the official Secretary of State (or equivalent) registry so you can check LLC name availability, verify an existing company, or prepare due diligence. Optional Chrome extension: EntitySearch.us Business Name Checker. Independent reference not a government agency and not affiliated with any state office.