Walmart is an American Walmart is a global retail chain founded by Sam Walton in 1962 and headquartered in Bentonville, Arkansas, USA. The company has been ranked as one of the top 500 companies in the world for three consecutive years. Wal-Mart has four main types of business: Wal-Mart Mall, Sam's Club, Wal-Mart Stores, and Wal-Mart Communities. Wal-Mart has four main business formats: Wal-Mart Mall, Sam's Club, Wal-Mart Stores, and Wal-Mart Communities, etc.