AAP was founded in 1932 and had 2015 sales of approximately $9.74 billion. The combined enterprise of AAP (including Carquest branded stores) operates over 5,200 company-owned and 1,300 independently owned stores covering every U.S. state, the Virgin Islands, Puerto Rico, and Canada with more than 70,000 employees. It is the auto parts company with most stores after acquiring General Parts Incorporated in October 2013.
The first major expansion of Advance Auto Parts was in 1998 when the company acquired the remaining operations of Western Auto, an auto parts and general store retailer. In April 2001, Advance Auto Parts acquired Carport Auto Parts, a regional retail chain with 29 stores in Alabama and Mississippi.On November 28, Advance acquired Discount Auto Parts, Inc., a regional auto parts chain with 671 stores in Florida, Alabama, Georgia, South Carolina, and Louisiana.Upon completion of this merger, Advance Auto Parts became a publicly traded company, listed as a common stock on the New York Stock Exchange under the symbol AAP. The year ended with 2,484 stores in 38 states.
Advance Auto Parts is the largest automotive aftermarket retailer in the United States based on sales and store count. The company premiered on the Fortune 500 list of companies in 2003 at No. 466 and has remained on the list since that time. As of June 2014, it was ranked at No. 1,412 on the Forbes magazine "World's Biggest Public Companies" list.
According to wikipedia