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Business

Manage Your Business

Manage Your Employees

Consumers

Registrations, Licenses & Permits

Services

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IDOR

Business Registration

Learn more about registration requirements for Illinois businesses.

GOV

Illinois Business Information

Links to information and resources for starting, running, expanding, relocating, or closing a business

SOS

Corporate & Limited Liability Company (LLC) Name Search

Corp and LLC Certificate of Good Standing allows you to search for information regarding corporations, not-for-profit corporations, limited partnerships, limited liability companies and limited liability partnerships, as well as, other business-related information.

IDOR

Verify a Registered Business

Verify an Illinois Business Registration here.

CMS

Become a Vendor & sell to state government

Learn how to do business with the state and sell products and services as a vendor

IDOR

Certificate of Resale

Learn more about Certificate of Resale requirements for Illinois businesses.

SOS

Corporation & Limited Liability Corporation Online Filings

Business Services Home Page allows you to access the areas of Business Services and their forms.

SOS

Locate Registered Business Names

On here twice: Corp and LLC Certificate of Good Standing allows you to search for information regarding corporations, not-for-profit corporations, limited partnerships, limited liability companies and limited liability partnerships, as well as, other business-related information.