Tesco is one of the largest food retailers in the world, operating thousands of stores in the United Kingdom, Ireland, and Europe. According to Kantar, Tesco is the market leader in the U.K. with a share of more than 27%, roughly double that of Asda or Sainsbury's. Tesco operates a core supermarket business in addition to convenience and neighborhood outlets. With a 35% digital market share in the U.K., the company holds a dominant position online. Tesco gained exposure to the cash-and-carry and out-of-home delivering industries with the landmark GBP 4 billion acquisition of Booker in 2018.