Anheuser-Busch Companies, Inc. /ˈænhaɪzər ˈbʊʃ/ is a brewing company founded and based in Saint Louis, Missouri. Since 2008 it has been a wholly owned subsidiary of Anheuser-Busch InBev (AB InBev). The company operates 12 breweries in the United States. Until December 2009, it also was one of the largest theme park operators in the United States, operating ten theme parks through the company's family entertainment division, Busch Entertainment Corporation. St.