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“Ms Gastrell has the skills and track record to be in the forefront of the next generation of arbitrators” and “it is unlikely that anyone knows the ins and outs of ICSID disputes better”
  • Juris Doctor, magna cum laude, Georgetown University Law Center, Washington, DC (2009), Global Law Scholarship
  • Master of Global Business Law, joint degree program with Université de Paris I Panthéon-Sorbonne and Sciences Po, Paris (2008)
  • Bachelor of Arts, magna cum laude with Honors, in Political Science and Economics, The George Washington University, Washington DC (2003), Honors Program Scholarship
  • Fellow, Chartered Institute of Arbitrators
  • Accredited Mediator, Centre for Effective Dispute Resolution (CEDR)


  • Post-M&A, Joint Venture, Commercial
  • Manufacturing, Sale and Distribution
  • Technology
  • Life Sciences
  • Energy and Natural Resources
  • International Investment Law
  • New York State Bar
  • Solicitor, England & Wales 
  • U.S. District Courts for the Southern District and Eastern District of New York (2010)
  • 2020–Present

Independent Arbitrator, Arbitration Chambers – New York and London

  • 2015–Present

Adjunct Professor of Law, American University, Washington College of Law – Washington, DC 

  • 2013–2020

Legal Counsel, International Centre for Investment Disputes (ICSID), World Bank Group – Washington, DC

  • 2009–2013

International Arbitration Group, Freshfields Bruckhaus Deringer LLP – New York and London


Lindsay's experience spans private practice, institutional service, and academia. Her cases have included complex investment treaty disputes and high-stakes commercial disputes, often exceeding USD 1 billion in value, as well as smaller cases involving individuals and SMEs. She has experience with the major institutional rules, the UNCITRAL Arbitration Rules, and fully ad hoc arbitrations. Her principal areas of practice include investment law, commercial contracts, construction, energy and natural resources, joint ventures and shareholder agreements, and M&A and financial transactions.

In addition to the publications and engagements listed below, Lindsay serves as Practice Notes Editor for the ICSID Review.

Recent Publications

  • Early Dismissal at ICSID: The Push for Protection and the Promise of Efficiency, BCDR International Arbitration Review 
  • Capturing the Benefits of Diversity in International Arbitration, SCC Spotlight Interview
  • ICSID 2052 – A Retrospective in Richard Happ and Stephan Wilske (eds), ICSID Rules and Regulations 2022: Article-by-Article Commentary (C.H. Beck 2022)
  • Debate: Parallel Proceedings in Investment Arbitration, Proceedings of the ASIL Annual Meeting, Volume 115, pp. 97 – 107 (2021)

Recent Speaking Engagements

  • Speaker, panel on Investment Arbitration and Insolvency, IBA Annual Meeting, Paris (to come in November 2023)
  • Featured Arbitrator and Organizer, Meet the Female Arbitrator, Equal Representation in Arbitration Pledge (2023)
  • Featured Practitioner and Speaker, The UNCITRAL Code of Conduct for ISDS Arbitrators, Queen Mary University’s LLM in International Commercial and Investment Treaty Arbitration (2023)
  • Speaker, panel on Correcting Asymmetry: Human Rights and Environmental-Based Counterclaims in Investor-State Dispute Resolution, Foley Hoag United Nations Lecture Series (2023)
  • Speaker, panel on ICSID Rules and Regulations 2022: Article-by-Article Commentary, ICSID (2022)
  • Moderator, panel on The Future of International Arbitration, International Legal Finance Association (ILFA) Annual Conference on Legal Finance (2022)
  • Speaker, panel on Lost in Translation: The Pivotal Role of Translation and Interpretation in International Dispute Settlement, sponsored by ASIL and Boies Schiller Flexner (2022)
  • Speaker, The Future of International Arbitration: Who Decides?, Equal Representation in Arbitration Pledge, Academic Outreach Series (2022)
  • Co-chair, Practice and Procedure session, Tylney on Tour at Cameron House (2022) Guest Lecturer, Achieving Diversity in International Arbitration, Penn State Law School (2022)
  • Faculty, SIAC Academy: Tribunal Secretaries in International Arbitration (2022)
  • Co-organizer, Towards an Integrated System of Dispute Resolution: Commercial Courts, Arbitration and Mediation, SIFoCC – ICCA Judiciary Committee Virtual Roundtable (2022)
  • Moderator, panel on Practical Tools for Emerging Arbitrators, Equal Representation in Arbitration Pledge Push for Parity Series (2022)
  • Moderator, Debate: “Parallel Proceedings in Investment Arbitration Are Abusive and Should be Banned,” ASIL Annual Meeting (2021)
  • Lecturer, Arbitrator Appointments and Challenges, CCSI Executive Training on Investment Treaties and Arbitration for Government Officials (2020)


Since 2015, Lindsay has been an adjunct professor of law at American University’s Washington College of Law, where she teaches investment law and arbitration. She has also taught courses on arbitration at several other institutions, including Georgetown University Law Center, and as faculty for Delos’ 2023 Award Writing Course.

  • Practice Notes Editor, ICSID Review
  • Co-Chair, Mute Off Thursdays
  • Global Steering Committee, Equal Representation in Arbitration Pledge
  • Rapporteur, Judiciary Committee, International Council for Commercial Arbitration (ICCA)
  • Group Advisor, ICCA Mentoring Program
  • American Society of International Law
  • International Arbitration Club of New York


  • English (native)
  • French (fluent)
  • United States