AutoZone, Inc. (AZO) has been in the business of keeping cars on the road since 1979. The Memphis, Tennessee-based retailer and distributor of automotive parts and accessories has built its entire operation around covering virtually every mechanical need for cars, SUVs, vans, and light trucks.
With a market cap of nearly $51.1 billion, AutoZone also runs a commercial program that extends credit and delivers parts directly to repair shops, markets diagnostic and shop management software through its ALLDATA brand and pushes its own Duralast product line in a serious way.