Ace Hardware Corporation (retail hardware, tools)-Headquarters
Advocate Healthcare (hospital)
Blistex Inc. (retail consumer products)-Headquarters
Chamberlain Group (garage doors)-Headquarters
Comcast (telecommunications)
Elkay Manufacturing Corporation (manufacturing)-Headquarters
Federal Signal (safety and security systems)-Headquarters
Great Lakes Dredge & Dock Corporation-Headquarters
Hub Group (transportation)-Headquarters
Inland Real Estate Group (commercial real estate)-Headquarters
Lions Clubs International (charitable)-Headquarters
McDonald’s Corporation (food)-Headquarters (headquarters moving to Chicago in 2018)
Millennium Trust (investments)-Headquarters
Molina Healthcare (health services)
Oak Brook Marriott (hotel)
Radiological Society of North America (association)-Headquarters
Tomy Corporation (toy manufacturer)-Headquarters
TreeHouse Foods, Inc. (food processing)-Headquarters
