Largest Breweries in Massachusetts

List includes Massachusetts-based breweries. Total beer barrel production for Samuel Adams represents all brands of Boston Beer Co., which is the parent company of Sam Adams. Seasonal/specialty count for Samuel Adams is an estimate that includes taproom exclusives and releases. Mass. Bay Brewing Co. is the parent company of Harpoon, UFO, Clown Shoes, Arctic Chill hard seltzer and City Roots hard cider.