The search is on for a new managing director in Canada as Stewart is promoted to VP of media partnerships for North America at the company.
Alexandra Reid, director of growth, tells MiC about the new launch, which aims to create client campaigns that go beyond click-through rates online.
The company has promoted six people working out of its Toronto office to facilitate further growth globally.
Steve Williams has brought Jonathan Adams (pictured) onto the team as chief digital officer, his first major appointment since joining the GroupM agency in June.
New roles for Dana Toering and Susan Byng as the company updates its sales model to focus more of its efforts on the supply side.