Arthur Cox

Competition and Regulated Markets

Ronan is Of Counsel at Arthur Cox and a member of the Competition and Regulated Markets Group. His practice covers the full range of EU and Irish competition and telecoms law.

Ronan has 15 years experience of Antitrust and Competition Law, Policy and Practice, with a focus on merger control, abuse of dominance, antitrust investigations and litigation. He has previously served at a senior level in the Competition and Markets Authority in London, during which time he led high-profile merger investigations (with a focus on the telecoms space) and dawn raids on behalf of that authority (in the pharmaceutical and medical sectors).

During his time with the CMA, he was also seconded to the Irish Competition Agency (the ‘CCPC’) and worked closely with the European Commission on both merger and antitrust investigations. His international experience of competition law, enforcement and capability building includes time in China (working with Mofcom, the Competition Regulator) and on secondment to a law firm in India. Prior to joining Arthur Cox in 2022, Ronan worked at another Irish law firm, where he brought regulatory appeals in the Irish High Court on behalf of both Three Ireland and Sky Ireland.

He holds a Masters Degree from King’s College London in EU Competition Law and, since 2020, has been named as a ‘Rising Star’ in the Legal 500.

Executive mini-MBA, 2019, Cambridge Judge Business School, England MA (Distinction), 2017, King’s College London, England Legal Practice Course (LPC)(Merit), 2007, The University of Law, London, England LLB (2:1), 2006, Warwick University, England Admitted as a solicitor in England & Wales (2009) (practising) Admitted as a solicitor in Ireland (2018) (practising) Member of the Irish Law Society Member of the Irish Society of European Law Member of the International Bar Association