Koichiro Naganuma was appointed a director of WPP in 2004. He is President and Group Chief Operating Officer of Asatsu-DK. Nagauma joined Asatsu-DK in 1981. His roles there have included Executive Director of the International Division, Managing Director of Asatsu Worldwide Company and President of the Overseas Network. Asatsu-DK is Japan's third largest advertising and communications company, in which WPP took a 20% interest in 1998.
- WPP 1999-2007 WPP leadership