Surender has worked extensively in client and agency-side retail financial services and FMCG, having set up her own consultancy two years.
Ewart joins from Australasian data agency Baycorp Advantage, having recently returned to the UK. Previously, he worked as database manager for Experian and head of businesss solutions at Strategic Research.
Surender will take on responsibilty for the data intelligence unit, while Ewart will be leading recently won database and analytics projects.
Patrick Sargeant, managing director of Response One, said: "With Sandra and Adrian on board we can continue to grow our expertise in insight-driven marketing. Their skills knowledge and make-it-happen approach complement our commitment to adding value through innovation."
If you have an opinion on this or any other issue raised on Brand Republic, join the debate in the .