Sharrock, who joined the company in 2012 from Trinity Mirror, where he was managing director of MEN Media, will begin his new role with immediate effect.
He has been leading the team since the departure of Barry Day in December 2013. Sharrock will help the company to expand its clients, employee base and international footprint.
"Having managed the business throughout 2014, I’m now very much looking forward to taking WRG to even greater success as we expand, employ and engage in more ways than ever before throughout 2015 and beyond," he said.
Jim Faulds, WRG chairman, added: "David is a hugely respected and experienced leader within WRG and the industry at large. Under his guidance, WRG has seen great success over the last 12 months, and I am delighted to announce his appointment as the company’s new chief executive."
WRG currently employs more than 200 people across Europe, Middle East, Asia-Pacific and North America. Last month,
In October,
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