Sam's West, Inc. is a chain of membership-only warehouse club retail stores in the United States owned by Walmart. It was founded in 1983 and named after Walmart founder Sam Walton as Sam's Wholesale Club. As of January 31, 2025, Sam's Club ranks second in sales volume among warehouse clubs with $90.2 billion in sales, ahead of BJ's Wholesale Club but behind its main rival Costco.