Dunnhumby

Leading retail customer data science company and retail media platform provider with strong presence in grocery and retail sectors

Dunnhumby is a global customer data science company founded in 1989, best known for pioneering the Tesco Clubcard loyalty program in the UK. The company specializes in retail customer data analytics and personalized marketing solutions, helping retailers and consumer packaged goods (CPG) brands understand shopping behaviors and optimize their marketing strategies. While often categorized within the broader AdTech ecosystem, Dunnhumby is more accurately positioned as a retail media and customer data science platform that enables targeted advertising and personalized customer experiences based on transactional and behavioral data. Dunnhumby operates globally with a strong presence in retail media networks, providing solutions that include customer analytics, media activation, personalization engines, and promotional optimization. The company works with major retailers worldwide to monetize their first-party data through retail media networks while helping CPG brands reach high-intent shoppers with precision targeting. As retail media has become one of the fastest-growing segments in digital advertising, Dunnhumby has positioned itself as a critical infrastructure provider for retailers looking to build and scale their media businesses.