Mark Slade has 15 years’ experience working in interactive advertising and since 2006 has built the market on behalf of his premium mobile advertising agency, 4th Screen Advertising, which was acquired by Opera Mediaworks in 2012. Opera Mediaworks operates the world's biggest brand-focused mobile ad network, serving 23 of the 25 top global brands across leisure, entertainment, motoring, FMCG, finance and technology markets.