Boston Beer Co Acquires Dogfish Head Brewery For $300 Million SAN FRANCISCO, CALIFORNIA - MAY 10: Bottles of Samuel Adams beer are displayed on a shelf at grocery store on May 10, 2019 in San Francisco, California. Boston Beer Company, the second largest craft brewer in the United States and the maker of Samuel Adams beer, announced plans to buy Delaware based Dogfish Head brewing for $300 million. (Photo by Justin Sullivan/Getty Images) (Justin Sullivan/Getty Images)