Arno E. Gildemeister, Docteur en droit (Paris/Münster), D.E.A. droit international et européen (Paris-Nanterre), admitted to the bar in Freiburg and Paris, is an experienced lawyer specialising in the representation of investors and states in international investment disputes (cases before ICSID arbitral tribunals, the Permanent Court of Arbitration and under the UNCITRAL Arbitration Rules).

Training in German and French law, specialisation in public international economic law and international commercial law, as well as arbitration.  Doctoral thesis on the arbitration of tax disputes in international investment law (‘L'arbitrage des différends fiscaux en droit international des investissements’), supervised by Prof. Emmanuel Gaillard (Univ. Paris-Est) and Prof. Gerald Mäsch (Univ. Münster). Various publications and lectures on current topics of international investment law, international tax law and international arbitration.  Research assistant to Prof. Thomas Wälde from 2006 to 2008. Since 2007, regular lectures on international arbitration and international investment law in the Master's programme ‘Arbitration & International Business Law’ at the University of Versailles (programme director and dean Prof. Thomas Clay).

Arno E. Gildemeister was part of the International Arbitration Practice of Shearman & Sterling LLP (Paris office) from 2009 to 2014. From 2006 to 2008 he worked as a lawyer in a Franco-German law firm. Since 2014 he has been working for TÜV Rheinland AG as Head of Dispute Resolution. In addition, since 2014 he has been teaching mediation and negotiation at the French university Sciences Po, Paris. From 2017 - 2021, he was also a member of a group of experts of the United Nations (UN Committee of Tax Experts) to develop proposals for the resolution of international tax disputes.