Illinois Secretary of State Business Search

Start using the Illinois Secretary of State business search functionality and the database of Illinois-based entities if you are seeking to register or partner with a business in the state.

The State of Illinois has compiled an official database of businesses within their boundaries and the contact information to facilitate partnerships.

The Illinois Secretary of State is a popularly elected constitutional office of the State of Illinois and compiles databases of information pertaining to Illinois-based corporate entities through the Business Services Division.

In addition to the Business Services Division, the Illinois Secretary of State’s office also maintains Administrative Services Division, Elections Division, and a Government Records Section.

The SOS database provided by the Illinois Secretary of State Business Services Division is tasked with compiling information on all of the businesses incorporated within the state of Illinois, so all entries are exhaustive and up-to-date. Users can search the database based upon a range of search criteria that are both specific and vague, and even obscure information such as the incorporating agent.

How to conduct an Illinois Secretary of State Business Search

Users can access the Illinois SOS corporation search for the following types of companies that are currently or were incorporated in the state of Illinois:

Start Illinois Registry Search

• Corporations – 17%
• Cooperatives – 30%
• Limited Liability Companies – 34%
• Limited Partnerships – 6%
• Limited Companies – 2%
• Limited Liability Partnerships – 11%

Any business within Idaho that is registered with the Illinois Secretary of State Business Services division can be searched for based upon the following criteria:

• Entity Name
• Entity ID
• Officer, Agent or Incorporator Name
• Reservation by ID
• Date
• Month and Year

For example, if the user wants to search for a corporation based in Illinois by name, the user will be prompted to enter the company’s name in the “Entity Name” field on the Illinois Secretary of State business search page.

In addition, the user will be asked to provide (if available though not required*) the “Entity Type,” “Place of Formation,” “City of Principal Address,” and “Status.”

If this information is available it may help refine the search in the case of multiple results but this information is not necessary for conducting an initial inquiry or you can contact the department for more information:

llinois Secretary of State Business Services
CyberDrive System
213 State Capitol Springfield, IL 62756
Corporations Phone: 1 (217) 782-6875
LLC’s/LP’s/LLP’s/LLLP’s Phone: 1 (217) 524-8008

You should know that having such information may help them more accurately located the desired corporation or service.

If the business is located within Illinois, it is located within the official database. After clicking on the search button, the user will be provided with a list of results that most closely match the criteria entered in the preceding page.

Clicking on any entry in the search results will lead the user to a detailed information page that contains the relevant information for the business entity to which it is attached.

In the search, users can also search for Illinois-based entities by business identification number, agent, officer, or incorporation, if this information is known.

Our quick SOS Corporation Search provides users with relevant and actionable results to register or partner with a business in the State of Illinois.

Illinois Secretary of State CORP:LLC - CERTIFICATE OF GOOD STANDING