Liam Heylin

Practice Areas

Liam is a Partner in the Competition & Antitrust team with first-rate experience advising on all aspects of EU and Irish competition law, digital regulation and the incoming Irish foreign investment screening regime. Liam specialises in merger control, cartels, abuse of dominance, competition litigation and State aid.

Liam has considerable experience advising regarding complex merger control and foreign investment screening reviews at EU and national level, and multijurisdictional antitrust investigations concerning cartels and abuse of dominance. Liam also advises clients about complex competition litigation proceedings actions before the Irish courts.

He routinely advises on other behavioural and regulatory matters such as distribution systems, co-operation agreements, and joint ventures. Liam also has extensive experience advising on all aspects of EU State aid law.

Liam advises across a multitude of industries including technology; financial services; life sciences; consumer products; aviation; energy; and natural resources and media and telecommunications.

Prior to joining Mason Hayes & Curran LLP, Liam gained invaluable international experience having previously worked at leading antitrust and competition practices at Freshfields Bruckhaus Deringer LLP in Brussels and Gibson, Dunn & Crutcher LLP in London where he advised on global merger control transactions requiring multi-jurisdictional review and large-scale antitrust investigations and enforcement proceedings. Liam also previously worked as senior associate in the EU, competition and regulatory group at another leading Irish law firm advising on all aspects of EU and Irish competition law.