Tesco Media and Insight Platform is a partnership between Tesco, the UK’s largest grocery retailer, and dunnhumby, a global leader in Customer Data Science. Together, we always put the customer first. We understand your frustration at trying to get to grips with what's really driving sales for your brand. Fuelled by data from over 20 million Clubcard holders, our closed-loop measurement helps you understand this and ensures not one pound of your budget is wasted. Tesco Media and Insight Platform: Shape What Britain Buys