Companies Founded in Chicago

List of notable businesses founded in Chicago, listed alphabetically with corporate logos when available. This list includes some of the largest, most profitable companies that were founded in Chicago. The famous Chicago companies and corporations on this list include both public and private corporations. You can find information about the popular companies on this list, such as what industry they're part of. When available you can click on the successful Chicago company's names to find out even more about them.

Companies here include everything from Motorola to Sears, Roebuck and Company.

This list answers the questions, "What companies were founded in Chicago?" and "What are the biggest Chicago companies?"

If you're a Chicago native then this list of the biggest Chicago companies will make you proud. This list is also an excellent resource if you're doing research on reputable businesses from Chicago.
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  • Basecamp
    Web development, Collaborative software
    37signals is a privately held web application company based in Chicago, Illinois, United States. The firm was co-founded in 1999 by CEO Jason Fried, Carlos Segura, and Ernest Kim as a web design ...more
  • Adbot
    Online advertising
    Adbot, Inc. was a privately held Internet advertising company in Chicago owned and operated by James R. Frith, Jr. The company was a pioneer in the delivery of display advertising on the Internet and ...more
  • Aon
    Management Consulting Services, Accident and Health Insurance
    Aon plc is a British multinational corporation headquartered in London, England, that provides risk management, insurance and reinsurance brokerage, human resource solutions and outsourcing services. ...more
  • Argo Tea
    Restaurant
    Argo Tea is a chain of tea cafes that was founded in the Lincoln Park community area in Chicago, Illinois, in June 2003. It is now headquartered in Chicago's Loop community area. It had more than a ...more