AutoZone is the largest specialty retailer of automotive parts and accessories to do-it-yourself individuals and professional installers. As of August 2009, the firm had 4,229 stores in the United States and 188 in Mexico. The company operates its commercial program out of 2,303 of its stores, offering delivery of parts to local, regional, and national repair garages, dealers, and service stations. The firm also sells ALLDATA automotive diagnostic and repair software.
