Founded by Clive Humby, dunnhumby are leading market analysts, whose blue chip client list includes major retailers: Tesco, The Kroger Co (US) and Coles Myer (Australia), global branded goods companies such as Lever Faberge, Proctor & Gamble, Gillette and other consumer brands such as Tesco Personal Finance, BMW, House of Fraser and Centrica.

Clive is the chief information architect behind Tesco Customer Management and its segmentation programme. Clive is also Visiting Professor, Integrated Marketing, at Northwestern University, Chicago, and Industrial Fellow at Kingston University.