Potbelly Corporation, through its subsidiary Potbelly Sandwich Works LLC, owns and operates Potbelly Sandwich Works sandwich shops in the United States. The company also sells and administers franchises of new Potbelly Sandwich Works sandwich shops. As of June 30, 2013, it had 280 company-operated shops in 18 states and the District of Columbia, as well as 6 franchised shops in the United States and 12 franchised shops in the Middle East. The company was formerly known as Potbelly Sandwich Works, Inc. and changed its name to Potbelly Corporation in 2002. Potbelly Corporation was founded in 1977 and is headquartered in Chicago, Illinois.