Guillaume has been Chief Executive Officer of Proximus since 1st December 2019. He joined the Proximus Executive Committee as Chief Consumer Market Officer in August 2017. With a very strong mix of strategic, financial and marketing experiences in the telecom and the media sectors in France, he has gained a very deep knowledge and understanding of new market dynamics and business models of these sectors.
Guillaume started his career as strategy consultant and as web entrepreneur. He then joined SFR where he successively held the positions of Director Chairman Office, Chief Financial Officer and Chief Marketing Officer, until he joined Canal+ Group in 2015 as Chief Marketing Officer. He is a member of the Board of directors of Scarlet Belgium. Since 1 January 2019, he is also member of the Board of Directors of Proximus Luxembourg which is the surviving entity after the merger between Tango and Telindus Luxembourg.
Guillaume holds a Master’s degree in Business Management from HEC Business School and followed a Corporate program for executives “CSP” at INSEAD.