In May 2018, pharma and consumer-health giant GlaxoSmithKline started reviewing its massive global media account. The review included Dentsu and two incumbents – Omnicom’s PHD and GroupM. It has now decided to consolidate its estimated $1.7 billion global media buying assignment with Publicis Media effective next year. A bit of history In 2010, GroupM’s MediaCom – the then […]