About Sam's Club
Sam's Club is an American chain of membership-only retail warehouse clubs owned and operated by Wal-Mart Stores, Inc., founded in 1983 and named after Walmart founder Sam Walton. As of 2012 Sam's Club chain serves 47 million U.S and Puerto Rican members and is the 8th largest U.S. retailer.
As of May 1, 2012, Sam's Club operated 612 membership warehouse clubs, the vast majority in the U.S., but also in Brazil, China and Mexico.