Tesco plc (LSE: TSCO) is a global grocery and general merchandising retailer headquartered in Cheshunt, United Kingdom.It is the third-largest retailer in the world measured by revenues (after Wal-Mart and Carrefour) and the second-largest measured by profits (after Wal-Mart).
It has stores in 14 countries across Asia, Europe and North America and is the grocery market leader in the UK (where it has a market share of around 30%), Malaysia, the Republic of Ireland and Thailand.