Family owned and operated for over 43 years, John P. O'Sullivan Distributing is proud to offer an incredible variety of premium, craft, specialty and import beers as well as an extensive portfolio of non-alcoholic products to retail establishments, restaurants, and neighborhood taverns across eleven counties in mid-Michigan including: Genesee, Saginaw, Midland, Bay, Shiawassee, Gratiot, Lapeer, Tuscola, Huron, Sanilac and St. Clair counties.