Sam's Club is a premium membership store owned by Walmart, a Fortune 500 company, named after the retail legend, Sam Walton, the founder of Walmart. Sam's has been in business for more than 30 years, since its first store opened in April 1983 in Midwest City, Oklahoma, U.S.A. Sam's entered the international market in the early 1990s and has grown to more than 800 stores worldwide, making it one of the largest membership stores in the world, providing a superior shopping experience for more than 50 million personal and business members.