City of Rochester 400 Sixth Street, Rochester, MI 48307, 248-651-9061, Provides information on local city services and local government offices in the Rochester area. more... 

Downtown Rochester Development Authority 308 1/2 Main Street, Rochester, MI 48307, 248-656-0060, This organization is dedicated to promoting businesses and events in the downtown area of Rochester. more... 

Rochester Regional Chamber of Commerce 71 Walnut Boulevard, Suite 110, Rochester, MI 48307, 248-651-6700, Promotes and supports local businesses and industries in the Rochester area plus provides relocation information.