Illinois Business Entity & Corporation Search

Illinois-State-ShapeIn Illinois, Department of Business Services (a subdivision of Secretary of State), maintains the database of all the registered business entities in the state. It includes information about Limited liability companies, Limited liability partnerships, corporations etc. Information such as business status, type,  registered agent details, and members information can be found on the database. One can search the database using the online business entity search tool hosted on the Secretary of State website.

Using the business search one can find out:

  • Check availability of a business name
  • Information about any business,
  • Business owners/agents can file relevant documents

Below we have described how one can search for a business registered in the state of Illinois.

Illinois Business Entity Search

Below we have described step by step instructions on how to search for a  business in Illinois.

Step 1: Open Illinois Department of Business Services page – Link (opens in new tab).

Step 2: Select whether you are looking to search for LLC or Corporation or both. If you are unsure simply select ‘Corporate and LLC‘ option.

Step 3: Click on ‘Continue‘ button.

Step 4: On the next page, you can choose from any of the following options to conduct the search:

  • Name – Business name starting with the entered search term will be shown.
  • Key Word – Business names containing the entered word.
  • Partial Word – Shows business name containing the partial word anywhere in the name.

For example: if we were to search for a business – ‘Happy Go Lucky LLP‘, the search combination can be:

  • Name – ‘Happy’
  • Keyword – ‘Go’
  • Partial Word – ‘Luck’

Step 5: Enter the name of the business in the text box.

Step 6: Click on ‘Continue‘ button.

Step 7: On the next page, you can view the search result with following information about each business entity:

  • Entity Type
  • File Number
  • Corporation/LLC Name

From the information on the page, select the business you were looking for. In case you are not able to find out the business, try searching again with a more specific search query.

Step 8: On the next page, you will be able to view business details.

File NumberUnique 8 digit Business Identifier
Entity NameBusiness Entity Name
StatusCurrent Status of the Business
Entity TypeBusiness Entity Type – LLC/Corporation/Partnership etc.
Type of CorpType of Corporation – Domestic/Foreign
Incorporation Date (Domestic)Date of Incorporation
StateState of business formation
Duration DateBusiness Expiry Date
Annual Report Filing DateDate of filing of Annual Report
Agent DetailsRegistered Agent name and contact details
Officer(s) Name & AddressName and contact details of officers/directors

Business owners/agents can purchase a certificate of good standing by paying a fee of $45 plus 2.5% payment processing charges.

Additionally one can file following documents/amendments:

  • File Annual Report
  • Adopting Assumed Name
  • Articles of Amendment Effecting a Name Change
  • Change of Registered Agent and/or Registered Office Address
 Contact Information
Address213 State Capitol
Springfield, IL 62756
Phone NumberToll Free: 1800-252-8980
Outside Illinois: 217-785-3000
Office Hours8:00 AM – 5:00 PM  Monday – Friday (except for Official State Holidays)

Links & References


Last Updated on: 05/10/2018

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