Guillaume Rougier-Brierre is a partner in the Corporate/Mergers & Acquisitions team in Paris and London. He specialises in acquisitions, privatisations, foreign investments and joint ventures, both in France and abroad.

He works with leading banks, asset managers, brokers and investment funds on their strategic transactions. It also regularly advises the main players in the world of infrastructure and energy, both public and private, on their investments and portfolio transactions. He regularly advises the French government and the Directorate-General for Energy and Climate, and advises infrastructure funds and private groups alike.

He advised the French government on the privatisation of Nice and Lyon airports and on the takeover of the management of the Donges-Melun-Metz pipeline. He acted for Infravia on the sale of the Seine Musicale to 3i and for Meridiam on its acquisitions of stakes in Lisea (Tours-Bordeaux high-speed rail link), Voltalis and Madagascar airports. He regularly acts for Société Générale, BoursoBank, Crédit Agricole, CNP, Sogecap, Santander and Crédit Logement.

Guillaume worked in the Warsaw office (Poland) and headed the Istanbul office (Turkey). He was also based in Beijing (China), where he was responsible for mergers and acquisitions. He now divides his time between Paris and London.