Netto was a discount supermarket chain in the United Kingdom. Netto arrived in the United Kingdom in December 1990, as part of an internationalisation process by its Danish owner, Salling Group. By May 2010, it operated 193 stores, before it was sold to Asda. In June 2014, Salling Group returned Netto to the United Kingdom, as a 50:50 joint venture with Sainsbury's.

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.