Blackburn spent five years with the credit card and savings account provider where he served as consumer insight manager and was responsible for developing the firm’s segmentation strategy.

Prior to Capital One he worked on the agencyside with firms including Corporate Edge, HPI Research Group and ORC International.

At Nunwood he will work with clients including Bank of America, Nationwide and AXA.

Nunwood Europe managing director Sarah Houghton said: “We are dedicated to building on our understanding of the consumer and using this insight to deliver long term ROI for our clients. We’re continuing to grow exponentially and David’s addition to the account director network has been welcomed across the board.”