Guillaume has been appointed at Hill+Knowlton Strategies as Senior Vice President, European Affairs. A French national, Klossa works in Brussels with H+K’s clients across Europe and elsewhere, helping them anticipate strategic needs driven by the regulatory and business agenda at national and EU levels.
KIossa has an extensive knowledge of the EU. He previously served as a special adviser to Andrus Ansip, former vice president of the European Commission in charge of the Digital Single Market, with a focus on AI, blockchain and media. He was a sherpa of the European Council’s Reflection Group on the Future of Europe, and was a senior political adviser to Jean-Pierre Jouyet, the minister in charge of the last French EU presidency, for whom he defined and implemented digital, cultural, communication and inter-institutional strategies.
Besides his political roles, Guillaume was director of the European Broadcasting Union (EBU), the influential worldwide media alliance. Before that he was executive vice president for McDonald’s France in charge of public and governmental affairs, communications and sustainable development.
He has lectured at the College of Europe, France’s École Nationale d’Administration, HEC Paris and the Institut d’études politiques de Paris (Sciences Po). He is fluent in French and English.