Tim Castree

In his role as Chief Executive Officer, Tim leads MEC, one of the world's largest media agency networks, overseeing more than 6,000 people in 90 countries.

As of January 2018, he is set to lead the newly merged GroupM agency formed by MEC and Maxus with a focus on creating a strong, empowered media, content and technology agency, driven by the strength of its global frameworks coupled with a deep understanding of local nuances.

With over 20 years of industry experience, Tim’s diverse management experience spans creative, media and integrated agencies.

Prior to joining MEC, Tim was Managing Director for Videology’s USA business where he developed the company’s strategy for providing cross-screen media technology solutions for advertisers, agencies and media companies. Previously, he was Chief Operating Officer for MediaVest US, running the business and leading major client accounts including American Honda Motor Company, Mondelēz, Coca-Cola, Microsoft and Sprint. He was also President, Global Managing Director for SMG, leading the global P&G business, spanning 160 assignments in 70 countries. Earlier in his career at SMG, Tim oversaw other clients such as Mars Wrigley, Wendy’s and Heineken.