The Pep Boys: Manny, Moe & Jack, frequently abbreviated to just Pep Boys, is a full-service and tire aftermarket chain. Based out of East Falls, Pennsylvania, Pep Boys specializes in servicing vehicles that require maintenance and repair services as well as holding a position within the commercial auto parts market as a delivery service. In 2005 it was named one of the fastest-growing companies in the United States. Founded in Philadelphia, Pennsylvania, in 1921, Pep Boys started out as four friends owning one auto shop. By the early 1930s, they had 40 stores in Philadelphia and one of their relatives opened the first West Coast Pep Boys store. Today, Pep Boys operate over 800 stores along with 7,500 service bays in 35 states and Puerto Rico.