Illinois Business Search

Where the Illinois details come from

Updated 2026-10-12

Pages we opened

Search methods were read on apps.ilsos.gov/businessentitysearch. The $25 and $5 certificate prices and the bulk-download warning were read on the department’s business-search page. The $75 LLC-50.1 fee was read on the LLC publications list. Addresses and phones were read on the LLC division page. The due-date rule is the anniversary-month rule stated in the department’s LLC report instructions.

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