Asda Stores Limited, trading as Asda and often styled as ASDA, is a British supermarket chain. Its headquarters are in Leeds, England. The company was incorporated as Associated Dairies and Farm Stores in 1949. It expanded into Southern England during the 1970s and 1980s, and acquired Allied Carpets, 61 large Gateway Supermarkets and other businesses, such as MFI Group. It sold these acquisitions during the 1990s to concentrate on the supermarkets. It was listed on the London Stock Exchange until 1999 when it was acquired by Walmart for £6.7 billion. Asda was the second-largest supermarket chain in the United Kingdom between 2003 and 2014 by market share, at which point it fell into third place.

Walmart Inc. is an American multinational retail corporation that operates a chain of hypermarkets, discount department stores, and grocery stores in the United States, headquartered in Bentonville, Arkansas. The company was founded by brothers Sam and James "Bud" Walton in nearby Rogers, Arkansas in 1962 and incorporated under Delaware General Corporation Law on October 31, 1969. It also owns and operates Sam's Club retail warehouses.