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Our Speakers

To view the programme, the speakers' biographies and book the conference, please visit the Global Tax Policy Conference 2025 Homepage.



Manal Corwin


Director, Centre for Tax Policy & Administration (CTPA), OECD



Gerassimos Thomas


Director-General, Directorate-General Taxation and Customs Union, European Commission



Danny Werfel


Former IRS Commissioner


 



Benjamin Angel


Director, Directorate-General Taxation and Customs Union, European Commission


 



Prof. Brian J. Arnold


Senior Adviser, Canadian Tax Foundation


 



Prof. Kimberly Clausing


Eric M. Zolt Professor of Tax Law and Policy,
 UCLA School of Law


 


 



Alex Cobham


Chief Executive,
Tax Justice Network, UK




 



Clare Costello


Assistant Secretary, Department of Finance, Ireland


 


 



Brendan Crowley


Senior Counsel, IMF


 


 



Matt Damone J.D.


Principal, TP Practice Leader, Baker Tilly US


 


 



Melissa Gierach


Managing Director, Tax Policy, DLA Piper US


 



Karine Halimi-Guez


Group Head of Tax, Booking Holdings


 


Bob Hamilton


Chair, OECD Forum on Tax Administration (FTA) & Commissioner of the Canada Revenue Agency 



Colm Kelly


Chair, FFS & Global Leader - Corporate Sustainability, PwC International Ltd



Will Morris


Vice-Chair, BIAC, OECD & Global Head of Tax Policy, PwC




Aart Nolten


Partner, Transfer Pricing & International Tax, Deloitte Tax Lawyers





Nina E. Olson


Executive Director, Center for Taxpayer Rights, US




 



Feargal O'Rourke


Chair, IDA Ireland


 



Clodagh Power


Senior Climate & G20/G7 Advisor to Chief Economist, OECD



Tim Power


Director for Business and International Tax, HM Treasury & Chair, Committee on Fiscal Affairs (CFA), OECD


 




Tom Roesser, 


 GM, Tax Policy Counsel,
Microsoft






Prof. Jay Rosengard


Adjunct Lecturer in Public Policy, Harvard Kennedy School




Chris Sanger


Global Government Tax Leader and UK Tax Policy Leader, EY





Maria Elena Scoppio


Director, Directorate-General Taxation and Customs Union,  European Commission




Stuart Tait


Partner, Chief Technology Officer,
Tax & Legal, KPMG UK


Mekar Satria Utama


Director of International Taxation, Directorate General of Taxes, Indonesia


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