Potbelly Corporation, through its subsidiaries, owns, operates, and franchises Potbelly sandwich shops. As of December 26, 2021, it had 443 shops in 33 states and the District of Columbia, which included 397 shops and 46 franchisees operated shops. 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.