Grey Group ranks among the largest global communications companies. Under the banner of “Grey Famously Effective Since 1917”, the agency serves a blue-chip client roster of many of the world’s best known companies: Procter & Gamble, GlaxoSmithKline, Diageo, Pfizer, Canon, 3M and Boehringer Ingelheim. In Asia, Grey Group covers 28 cities in 16 countries and works with some of the biggest brands in the region: Hong Kong Tourism Board, HSBC, Volvo, Lenovo, Mengniu, and Qatar Airways.