Jenner & Block

Ronan O’Reilly is an associate in the firm’s London office. His practice encompasses international arbitration and commercial litigation, covering a variety of sectors including energy, telecommunications, mining, and financial services.

Mr. O’Reilly has represented a broad range of clients, including large corporations, states / state entities and hedge funds in complex disputes before the English courts and international tribunals under the rules of the major arbitral institutions. He also has experience of acting for clients in multi-jurisdictional enforcement proceedings, sovereign-debt proceedings, and insolvency proceedings. 

Mr. O’Reilly regularly speaks at events in the arbitration community on a broad range of topics and is a former chair of the Chartered Institute of Arbitrators, Global Young Members’ Group. Prior to joining Jenner & Block, Mr. O’Reilly worked in the London and Paris offices of a large international law firm.  

Mr. O’Reilly is listed in the Future Leaders section of the Who’s Who Legal: Arbitration Guide 2021, featuring the foremost arbitration practitioners aged 45 and under.

Jenner & Block London LLP is a limited liability partnership established under the laws of the state of Delaware, USA and is authorised and regulated by the Solicitors Regulation Authority with SRA number 615729. Jenner & Block London LLP is affiliated with Jenner & Block LLP, which operates Jenner & Block’s offices in the United States.