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Illinois

Business Entity Lookup
Illinois SOS Business Entity Search

Search Illinois corporations, LLCs, and limited partnerships. Returns entity status, registered agent, and annual report filing history.

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What you can find
  • Entity status and type
  • Registered agent details
  • Annual report history
  • Officer information
  • Formation documents
Pro tip
Search by exact legal name first. If nothing returns, try a partial name or the registered agent — many portals normalize punctuation differently than what's filed.
Searchadex links directly to the official Illinois Secretary of State portal. We never store, resell, or charge for this information.