William De Catelle

William De Catelle joined White & Case in 2019 and is an associate in the EU law practice.

William advises on all aspects of competition law including on State aid, horizontal and vertical agreements, abuse of dominance and merger control. His practice is also focused on EU trade and regulatory issues, including in the field of environmental and climate change law, and he is a member of the Firm's ESG & Sustainability Associate Working Group. William also assists clients in proceedings before the Court of Justice of the European Union.

Prior to joining White & Case, William was a Blue Book Trainee at the European Commission, where he worked in merger control and assisted in reviewing some of the largest transactions of 2019. In 2018, he was U.K. National Champion of the Philip C. Jessup International Law Moot Court Competition with the King's College London team.