McKenzie will take on the position of senior account manager and brings with her more than six years' client services experience specific to the direct marketing sector.
She joins Celerity from Acxiom, where she managed the accounts of a number of high-profile blue-chips, including Which?, AXA PPP, Imperial Tobacco and Office World.
Jason Lark, managing director at Celerity, said: "We are delighted to welcome Gillian to the team. Her wide skill set is a perfect match for our comprehensive data services offering. Gillian joins at an exciting time of growth for Celerity and her expertise will be vital in ensuring we continue to exceed expectations in helping our clients combat complex data-led business issues."
Celerity has been operating since 2002 from Dartford and its portfolio of clients includes Sainsbury's, Boots, Nectar and Cancer Research UK.
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