Sears Holdings Corporation is an American holding company headquartered in Hoffman Estates, Illinois. It is the owner of retail store brands Sears and Kmart, and was founded after the latter purchased the former in 2005. Sears Holdings owns the brands Craftsman, Kenmore, and DieHard. Sears Holdings operates 1,725 retail locations under the mastheads of Sears, Kmart, and their subsidiaries, such as auto centers and pharmacies. Since 2013, the company is the 13th largest retailer by annual revenue in the United States behind Walmart, Costco, Kroger, Target, Walgreens, The Home Depot, CVS Caremark, Lowe's, and Best Buy.