Sam's West, Inc. was founded in 1983 and is a membership-only retail warehouse chain owned by Walmart that serves over 47 million members. To promote diversity, the Walmart Foundation committed $100 million to non-profits in the U.S. and aims to train 1 million women globally by the end of 2016 through initiatives like job training programs and grants to help low-income individuals enter the retail industry. Sam's Club also ranks as the second largest retailer in the U.S. based on volume despite having larger individual store sizes than competitor Costco.