The university's business school is the Haworth College of Business. It is one of the biggest business schools in the country with over 4,000 undergraduates, 500 MBA and MSA students, and over a thousand graduate students. On the main campus, Schneider Hall houses the college. Following a sizable donation made by Haworth in the 1980s, the College of Business was renamed in his honour.
- A relationship between WMU and the Thomas M. Cooley Law School was established in 2001 so that students could pursue both a law degree at Cooley and a master's in public administration at WMU. Western Michigan University and Cooley Legal School increased their collaboration in 2008, allowing WMU students enrolled in the MPA and Masters in Business Administration programmes at WMU to also pursue a law degree there.
- The university's board of trustees decided to cut ties with the Cooley Law School on November 5, 2020, showing that the board thought the relationship had started to detract from the university's primary objective. Three years are needed for the dissociation to take place.
- Medallion students stand out from their contemporaries. Through a competitive, comprehensive evaluation of the admission application file, students are chosen. There is no need to submit a separate scholarship application. To participate in an interview to choose up to 20 Medallion Scholars, up to 60 semi finalists will be chosen.