Tesco is a British transnational corporation founded in 1924 when Jack Cohen purchased a shipment of tea. The name comes from his initials "T.E." combined with the first two letters of his last name, Stockwell. Sainsbury's is the second largest supermarket chain in the UK known for its grocery stores. Marks & Spencer was traditionally known for clothing but has expanded into other product areas like food and household goods since the 2000s to diversify beyond fashion.