Chicago Department of Planning and Development actively promotes growth and development in Chicago's diverse neighborhoods with a focus on the continued economic development of the City. The Department works with the existing business community and also works to attract new business to Chicago. All of this is done in the context of holistic, community-based planning, closely coordinating activities with residents and community organizations.

Illinois Department of Commerce & Community Affairs created the First-Stop Business Information Center. The goal of the Center is to enhance the state's business climate by making it easier for businesses to comply with government requirements and gain access to information they need to be competitive. Whether a start-up or existing business, this guide will inform you of various legal requirements and direct you to additional resources.

U.S. Small Business Administration offers information on starting, financing, and expanding a business. Also contains links and resources to relevant information.