Bart Wasiak's practice focuses on representing sovereign States and private-sector clients in high-stakes international arbitration proceedings. To date, he has served as counsel in more than 20 investment-treaty arbitrations under the ICSID and UNCITRAL arbitration rules. He has advised clients in relation to a broad range of disputes, including in the energy, banking, mining and shipping sectors.


  • Representing the Kingdom of Thailand in an ongoing UNCITRAL Rules arbitration relating to the mining sector.
  • Representing the Czech Republic in an ongoing investment-treaty arbitration relating to the renewable energy sector.
  • Representing the Republic of Korea in an ongoing ICSID arbitration relating to bank regulation and taxation matters.
  • Representing the Czech Republic in an ongoing ad hoc arbitration under the Switzerland-Czech Republic Bilateral Investment Treaty.
  • Representing the Republic of Bulgaria in an ongoing ICSID arbitration relating to electricity sectors.


Lecture—Confidentiality in Investment Treaty Arbitrations
London School of Economics
Arbitration Hearings: Top 10 Tips for Junior Associates
Co-author, Delos Dispute Resolution
Student Seminar — International Arbitration in Practice
University of Nottingham
Have a Plan ("My #1 Career Advice for Young & Aspiring Lawyers")
Speaker, Bali International Arbitration and Mediation Center
Corruption Occurring After the Establishment of an Investment Should Disqualify Otherwise Meritorious Investment-Treaty Claims
Investment Treaty Arbitration and International Law, Volume 13


The Legal 500 UK
Public International Law (2021-2022)
International Arbitration (2022)


  • Legal Practice Course, BPP Law School
  • LLB, University of Nottingham and University of Texas
  • England and Wales
  • New York
  • Vice-Chair (Policy), International Arbitration Committee, American Bar Association (ABA) International Law Section
  • Fellow, Chartered Institute of Arbitrators (FCIArb)
  • Member, CEDR Investor-State Mediation Practitioner Advisory Group
  • Member, American Society of International Law (ASIL)
  • Member, International Council for Commercial Arbitration (ICCA)
  • Polish

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