Greg Lourie’s practice focuses on international commercial and investment arbitration, litigation, and public international law matters.

Greg represents clients, including sovereign States, State-owned entities, and multinational corporations, in complex international commercial and investor-State arbitrations across a broad range of industries and jurisdictions. He has experience in conducting proceedings under the rules of the leading institutional and ad hoc arbitration regimes, including ICSID, UNCITRAL ICC, DIS, and VIAC. He also acts in proceedings before national courts and has experience advising clients on questions of sovereign and diplomatic immunities and human rights.

Greg currently serves as an ICC YAF Representative for the Europe and Russia chapter, and he frequently speaks and publishes on international arbitration related issues.

Greg joined the firm in 2018; prior to joining the firm, Greg worked for the arbitration group of another major international law firm and the Permanent Court of Arbitration in The Hague.

Notable Experiences

  • The Government of Georgia in relation to a construction-related dispute under the UNCITRAL Arbitration Rules; and in an UNCITRAL arbitration brought by an Australian company under the Energy Charter Treaty.

  • Agfa-Gevaert Group in an ICC arbitration related to the divestiture of Agfa-Gevaert’s consumer imaging business to the AgfaPhoto group of companies.

  • Sole arbitrator (appointed by the ICC) in an ICC arbitration seated in Stockholm in the life sciences sector.

  • A leading automobile manufacturer in consumer litigation cases related to emissions.

  • A European State in relation to a human rights litigation before domestic courts.

  • DP World in an ICSID arbitration against the Republic of Peru under a concession agreement for the development and operation of the South Pier of the Port of Callao and the UK-Peru bilateral investment treaty.

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Selected Activities

  • Lecturer at Saarland University, Saarbrücken (International Arbitration and Public International Law)
  • Member of the Academic Council of the Belarusian International Law & Arbitration Association
  • Member of the German Society of International Law (German Branch of the ILA)
  • Member of DIS40, ICC YAF, RAA40, Young ICSID, Young OGEMID


Current Trends in Sovereign Debt Dispute Resolution,” May 19, 2022

2020 Revision of the IBA Rules on the Taking of Evidence in International Arbitration,” Cleary Gottlieb Alert Memo, April 27, 2021

“Europarecht und Schiedsgerichtsbarkeit,” Handbuch Schiedsgerichtsbarkeit und ADR (Nueber ed., 2021)

Cybersecurity, International Arbitration and the Ethical Rules and Obligations Governing the Conduct of Lawyers: A Comparative Analysis,” TDM 3 (2019) (with S. Alekhin and A. Foucard)

The BGH’s Achmea Decision: Arbitration Clauses in ‘Intra-EU BITs’ Are Invalid,” Cleary Gottlieb Alert Memo, November 30, 2018

“Investitionsschutzverträge in Zeiten der Abkehr vom völkervertragsrechtlichen Investitionsschutz,” Versicherungsmechanismen im Recht (Behme/Fries/Stark, eds., 2016)

Diplomatic Protection Under the State-to-State Arbitration Clauses of Investment Treaties,” Austrian Yearbook on International Arbitration (Klausegger et al., eds., 2015)


Arbitration Experts on Experts in Arbitration: Is Everything Perfect in Paradise?” April 2, 2022

The Evolution of Careers in International Arbitration”, March 30, 2022

ICC YAF: Human Rights and Investment Rights - Two Sides of the Same Coin?” panel discussion organized by ICC YAF Germany, February 2022

“Bond. State Bond: No Time to Define Investments” panel discussion, VI FIAMC Conference, January 2022

Moderator, “Unwrapping the Eastern European Potential – ICC YAF virtual networking event”, December, 2021

Moderator, Meet Your ICC Case Management Team, December 2021

“Climate Change Related Disputes in a Nutshell,” panel discussion organized by ICC YAF Poland, Warsaw, September 2021

Moderator, 8th ICC YAF Biennial Global Conference, September 2021

“Arbitrating Digital Disputes – Are We ‘On-chain’ Yet?,” panel discussion at the joint Arbitrator Intelligence and Russian Arbitration Association webinar on Information Exchange and Legal Technology in International Arbitration, July 13, 2021

“Fair and Equitable Treatment and Full Protection and Security,” lecture at the Advanced Programme in Investment Arbitration of the Paris Bar School (École de formation professionnelle des barreaux), Paris, December 16, 2020

“Arbitration From a Practitioner’s Perspective: The Difference Between Practice and Theory,” panel discussion organized by Experts in Litigation and Arbitration (ELA Nigeria), November 8, 2020

FDI Moot Court, coach of the Europa-Institut, Saarland University team, November 2020

FDI Moot Court, coach of the University of Saarbrücken student team, November 2019

International Institutional Arbitration, lecture at the International Training Centre of the ILO (ITCILO), Torino, May 17, 2019

The Russian Approach to the ISDS Reform, workshop on Current Developments in the Reform Debate on Investor State Dispute Settlement, Europainstitut Saarbrücken, May 7, 2019

Can States Reshape Their Investment Treaties Through Subsequent Agreements and State to State Arbitration?, panel discussion at NLU Delhi, October 2, 2017

Exploring the Varying Dimensions of Public Policy in International Arbitration, 2nd CARTAL Conference on International Arbitration, Judhpur, September 30, 2017

17. Graduiertentreffen im Internationalen Wirtschaftsrecht: Internationale Abkommen im Wirtschaftsrecht, Conference Host, Goethe University Frankfurt, June 11-12, 2016