M.K.
There are so many wonderful private colleges in the Chicagoland area with terrific business schools: Loyola, DePaul, Northwestern, etc. As for Public Universities, Northern Illinois University has a good business school and has campuses in the suburban area (Naperville, Hoffman Estates, etc.) Also, University of Illinois has a campus in Chicago. You can't go wrong with an Undergraduate Degree in Business from any of the schools!