Potbelly Corporation, through its subsidiaries, owns, operates, and franchises Potbelly Sandwich Works sandwich shops in the United States. The company offers toasty warm sandwiches, salads, soups, chili, sides, desserts, breakfast sandwiches, and steel cut oatmeal. As of February 25, 2019, the company operated approximately 400 shops in the United States; and approximately 50 franchisees operated shops in the United States, the Middle East, Canada, and India. 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.