Dairy Queen, often abbreviated DQ, is a chain of soft serve and fast food restaurants owned by International Dairy Queen, Inc, which also owns Orange Julius and Karmelkorn. The name "Dairy Queen" is taken from the name of their soft serve product, which the company refers to as "Dairy Queen" or "DQ". The first Dairy Queen store opened in 1940 in Joliet, Illinois. The company's corporate offices are located in Edina, Minnesota.