Groom joins the agency as senior account manager and is the first appointment since the merger was announced last month.
At Dunnhumby, Groom led customer acquisition and retention campaigns for clients such as BMW and Hyundai, and managed the build and launch of first customer segmentation of behalf of Tesco Personal Finance.
The agency is headed up by five founding partners: Gareth John, Hywel Davies, Don Cowley and Tim Sykes from DLCF; and MBO's Jeremy Taylor. It employs 30 staff.
Its clients include Chrysler Jeep UK, Tesco Personal Finance, The Telegraph Group, The Consumers Association and DFDS Seaways.
If you have an opinion on this or any other issue raised on Brand Republic, join the debate in the .