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- The company was formed by husband and wife team Edwina Dunn and Clive Humby. Humby was a University of Sheffield trained mathematician and the couple both worked at Caci. Wanting to start his own business, Humby resigned from Caci and left on the day that Dunn was dismissed. The couple started dunnhumby in 1989, in the kitchen of their Chiswick, West London home.
- The company began working with clients, including Cable & Wireless and BMW.
- In May 2018, dunnhumby acquired marketing and promotions management company Aptaris.
Tesco Clubcard triggered for dunnhumby to drive data science products.
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