Rob joined WPP and GroupM following the acquisition of Tempus Group PLC where he founded CIA Interactive and Outrider in 1994 creating the world's first interactive specialist owned by a media agency. Rob has worked across every significant category from automotive to packaged goods, from financial services to technology and is a frequent speaker and writer on industry topics.

GroupM is the parent company of Mediaedge:cia, Mindshare, Mediacom and Maxus and is the world's largest Media investment management company. GroupM Interaction represents the largest volume of online advertising billings and is the world leader in video on demand and other emerging channels.