Philip J.Devenish


London + 44.20.7039.5531

Philip Devenish has acted for corporations and governments in some of the world's largest and most significant disputes, as ranked by The American Lawyer and Global Arbitration Review, including several billion dollar cases across a range of industry sectors.

Philip is a trial lawyer with a particular focus on the resolution of international disputes. He has appeared as counsel in international matters before the UK Supreme Court and in more than 30 arbitrations before World Bank (ICSID), United Nations Commission on International Trade Law (UNCITRAL), International Chamber of Commerce (ICC), London Court of International Arbitration (LCIA), Stockholm Chamber of Commerce (SCC), and Swiss Chambers' Arbitration Institution (SCAI) tribunals. He has advised sovereign states on the negotiation and drafting of investment treaties and regularly advises multinational corporations on the (re)structuring of their investments for maximum treaty protection.

Before joining Jones Day, Philip served as a core member of the trial team that secured a US$1.1 billion victory on behalf of JSC Oschadbank in an investment treaty arbitration against Russia. This landmark decision marked the first occasion that Russia had been held liable by an arbitral tribunal for seizing assets in Crimea. He also has secured highly favorable settlements for respondent states, including for less than one percent of the claimed damages.

The Legal 500 UK (2019) describes Philip as a "key practitioner" of public international law with "particular expertise in handling foreign investment disputes arising under treaties and contracts." He is named by the Legal Media Group's Guide to the World's Leading Experts (2019) as a "Rising Star" in commercial arbitration in the United Kingdom.


  • Clients seek advice in connection with criminal investigation and potential criminal and civil claims relating to alleged fraud of over US$1 billionJones Day is advising clients in connection with a criminal investigation and potential criminal and civil claims relating to an alleged fraud of over US$1 billion.
  • Saudi businessman brings investment arbitration proceedings against Middle Eastern stateJones Day represents a Saudi Arabian businessman in investment arbitration proceedings against a Middle Eastern state.
  • Windoor arbitrates ICSID claim against KazakhstanJones Day is representing Estonian construction company AS Windoor in ICSID arbitration proceedings against the Republic of Kazakhstan.
  • U.S. healthcare company arbitrates ICC claim against Middle Eastern hospital proprietorJones Day is representing a Pittsburgh-based international healthcare management and consulting company in an ICC commercial arbitration against an owner of medical centers and clinics in the Middle East.
  • Canadian mining company initiates UNCITRAL arbitration against KazakhstanJones Day represents a Canadian mining company in an UNCITRAL arbitration against the Republic of Kazakhstan.
  • Additional Publications

    Publications Prior to Jones Day


    “Hungary”, GAR Know-How, Investment Treaty Arbitration (2015-2019)


    “Enforcement in England and Wales of Arbitral Awards Set Aside in Their Country of Origin” (2018) 18(2) Oxford University Commonwealth Law Journal 143


    CEAC v. Montenegro: When Does an Investor Have a ‘Seat’ in its Home State?”(2018) 33(1) ICSID Review 81


    “Review of Practising Virtue: Inside International Arbitration (Oxford University Press, 2015) (eds. D. Caron et al.) (2017) 34(1) Journal of International Arbitration 113


    “The Energy Charter Treaty: The Range of Disputes and Decisions”, in The Guide to Energy Arbitrations (Global Arbitration Review, 2015)


    “Review of Basic Documents on International Investment Protection” (Hart Publishing, 2012) (ed. M. Paparinskis) (2013) 8(5) Global Arbitration Review


    Ambiente Multi-Party Arbitration” (2013) Practical Law Company


    “Law of Deeds Revisited” (2010) 84 Australian Law Journal 427

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