Drawing on 20 years’ experience as a journalist and manager in newsrooms, Guillaume advises companies across sectors in their interactions with the media, financial markets and all their stakeholders. He has a particular interest in Finance as well as the broader reputational questions facing business.

Guillaume joined Brunswick in 2019 from Les Echos, the French leading newspaper for economics where he held several senior management roles, including Editor in Chief for Finance & Markets for six years. He has also been a TV and radio columnist (CNews, France 5, Radio Classique, Europe 1) and a regular speaker at conferences. He published in 2020 “Les Seigneurs de l’Argent” (Lords of Money: From the Medici to Bitcoin). He’s graduated from the University of Paris IV Sorbonne.