Banking, Financial services Tesco Bank are part of Tesco PLC, the largest retailer in the UK and the third biggest retailer worldwide. So we know our customers. We are also the UK's most successful supermarket bank, and still growing. We bring simplicity to a sometimes overly complicated market and an approach that puts the customer firmly at the heart of everything we do. We aim to give our banking customers the same excellent value they have come to associate with Tesco stores - it's a fresh approach to banking and offers a fresh start both for our customers and for our staff.