Leading The ROI Agency in North America, CEO Tim Jones is committed to ensuring that each agency client receives a better return per media dollar invested than any of their competitors. Managing ZO's industry-leading North American media brands, Tim also serves as a member of the ZO worldwide executive committee. Under Tim's leadership since 2005, ZO has experienced unprecedented growth. Tim's career started in 1978 and has included service at Ogilvy and Mather, Bates and ZO International.