IL Department of Commerce & Economic Opportunity

Contact Us


Illinois Department of Commerce and Economic Opportunity (DCEO)
Springfield Office
620 East Adams
Springfield, IL 62701
Phone: 800-252-2923

About the Department


The State of Illinois has extensive websites dedicated to each of its departments with many resources to help start a business. An excellent resource for general business information is the DCEO handbook, Starting a Business in Illinois. This publication includes a list of resources as well as a feasibility check list and business plan outline.