Tesco is a multinational retailer owned by Tesco PLC from the United Kingdom. It was started by Jack Cohen in 1919 . He had a stall at Well Street Market, in Hackney. He opened the first Tesco grocery store in 1931 in Edgware. His business grew very quickly and there were 100 Tesco stores by 1939. Jack Cohen's business motto was "pile it high and sell it cheap".