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Investor-State Arbitration

We are a boutique built for investor-state disputes.

Our practice is led by James H. Boykin and Remy Gerbay—two of the field’s most respected authorities.

Together, they bring decades of experience representing both investors and sovereigns in proceedings under bilateral and multilateral investment treaties, and investment contracts with states and state-owned entities.

Representative Cases

Over the past two decades, Hexagon’s lawyers have been entrusted with some of the most consequential investor-state matters.

  • Counsel to a U.S. investor in ICSID proceedings against the Republic of Turkey
  • Counsel to a U.S. investor in ICSID proceedings against the Republic of Armenia
  • Counsel to a Ukrainian bank in UNCITRAL proceedings against the Russian Federation
  • Counsel to Ukrainian investors in the aviation, energy, and real estate sectors in UNCITRAL proceedings against the Russian Federation
  • Representation of an Iranian investor in a $1 billion UNCITRAL arbitration against Azerbaijan (PCA-administered)
  • Representation of a French investor in a $120 million UNCITRAL claim against the Dominican Republic, arising from an investment in the waste management sector
  • Counsel to a Turkish investor in ICSID proceedings against the Republic of Kazakhstan
  • Counsel to Canada in two LCIA state-to-state arbitrations under the 2006 Softwood Lumber Agreement
  • Counsel to a group of foreign investors in a $30 million UNCITRAL dispute involving agricultural assets in Bulgaria
  • Representation of a U.K. investor in expropriation proceedings before the Stockholm Chamber of Commerce
  • Representation of a Turkish investor in a $100+ million ICSID arbitration against Azerbaijan concerning public works contracts
  • ICSID annulment proceedings concerning jurisdictional objections and treaty interpretation

To discuss our capabilities, please contact:

James Boykin

Dr. Remy Gerbay