Europe Guide 2026 : Ireland
Ranked Individuals
Provided by Arthur Cox
Our Competition and Regulated Markets Group is widely recognised as a leader in its field in Ireland. We are at the forefront of developments in competition and regulated markets law and are involved on an ongoing basis in the most high-profile and complex cases in Ireland.
The team advises on all aspects of Irish and EU competition/antitrust law, including:
Provided by Chambers
Arthur Cox is highly esteemed for its ability to handle the competition law aspects of corporate transactions, including advising on phase II merger filings and foreign direct investment notifications. The law firm also represents clients in CCPC behavioural investigations and in competition litigation.
Provided by Chambers
Arthur Cox advised Phoenix Tower on the phase II merger control investigation for its acquisition of Cellnex's tower business.
Provided by Chambers
The team has the ability to give clear advice even in the most complex of matters, while being receptive to client needs.
The team is made up of very experienced and savvy lawyers, who really take the time to understand the industry and our business.
The company demonstrates strong capabilities in its dealings with the authorities and maintains a solid legal standing.
The lawyers are excellent at the most complex and fast-moving issues.
Provided by Chambers
Richard Ryan is particularly noted for advising clients on Irish merger control filings. He has additional experience in behavioural investigations and competition litigation matters.
He has a high level of technical knowledge and is responsive. He also has a strong understanding of our business, market and the challenges we face.
He has an outstanding ability to translate complex antitrust issues into clear, actionable advice.
Richard Ryan’s command of complex competition issues is exceptional, and his analysis is consistently sharp, commercially grounded, and strategically sound.
Richard Ryan really is exceptional. His advice is always considered from all angles, thinking a few steps ahead. He is always prepared and totally unflappable.
His ability to simplify complexity and provide reassurance in high-pressure situations is unmatched.
Patrick Horan represents clients in CCPC behavioural investigations and sector inquiries, as well as advising on FDI filings and merger control matters, including those necessitating a phase II investigation.
He has a quick grasp of issues combined with the ability to provide clear advice.
He is an excellent lawyer and a pleasure to work with.
He's someone I would really rate.
Patrick Horan is very pragmatic and gives good advice.
Competition/European Law
Competition/European Law
Provided by Arthur Cox
Simon Breen
Patrick Horan
View profile of Patrick HoranRichard Ryan
View profile of Richard Ryan
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