Want to learn more about DuPage County?

Sign up for County newsletters and email updates!

Search search icon

Assumed Business Name Search

To search information for Corporations, Not-for-Profit Corporations, Limited Partnerships, Limited Liability Companies, and Limited Liability Partnerships visit the Secretary of State's Business Services website.

If you are seeking information on a business license or permit, please contact the Illinois Department of Financial and Professional Regulation.

INSTRUCTIONS: To search for assumed business name, please enter either business Name OR owner's Last name and then click the Search button. All of the records can also be downloaded into Excel.

           
Sign Up