Belgium, UK (England & Wales)
Will holds an M.A. history and an M.Phil. in international relations from Cambridge University as well as a master’s in EU competition law from King’s College, London.
Will is a Partner in the Antitrust & Foreign Investment Group in Brussels and co-heads the firm’s technology sector team. He is also co-chair of BritCham EU’s competition section.
He advises multinational corporates on EU and UK competition law. He has a particular focus on merger control as well as antitrust investigations and litigation. Will is a member of the Brussels Bar (A list), as well as being qualified as a solicitor (England and Wales). He has worked in Brussels, London and Paris.
Will regularly publishes and speaks on competition law topics and won this year’s Concurrences Jury Award for Best Business Article on Unilateral Conduct.
Will regularly publishes on competition law. Recent examples include:
Christian Ahlborn, Gerwin van Gerven and Will Leslie “Bronner revisited: Google Shopping and the Resurrection of Discrimination Under Article 102 TFEU” JECLAP, Volume 13, Issue 2, 2022
Gerwin van Gerven, Annamaria Mangiaracina, Will Leslie, Lodewick Prompers, “Data and privacy in EU Merger Control” in GCR’s Digital Markets Guide - First Edition (2021)
Christian Ahlborn and Will Leslie, '“Jack of all trades, master of none”: the ever-increasing ambit of the market investigation regime’ in A. MacCulloch, B. Rodger and P. Whelan (eds), The UK Competition Regime: A Twenty-Year Retrospective (OUP: 2021)
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