David HERLIHY SC

David is a partner in A&O Shearman's International Arbitration Group. He has 20 years’ experience in international arbitration, with a focus on international commercial arbitration, investment treaty arbitration and public international law. David is qualified in Ireland, England & Wales and New York. He has an undefeated track record of success in investor-state arbitration, acting both for investors and for states over the last two decades. His recent matters include representing Vodafone in its investment treaty win against India (where the amount in dispute exceeded USD 5 billion); successfully defending Cyprus in a EUR 1 billion investment treaty claim arising out of the Eurozone financial crisis; and acting for two Dutch subsidiaries of NextEra Energy in ICSID claims resulting in an award of more than EUR 290 million against Spain under the Energy Charter Treaty). His victories have won International Arbitration Team of the Year twice, most recently in 2021 (Legal Business Awards). Law 360 has named David as an MVP for International Arbitration. He has also been recognised by multiple directors including Chambers, Legal 500 and Who’s Who Legal: Arbitration, which describe him as “an outstanding talent” and “nothing but exceptional.