Philip J.Devenish


London + 44.20.7039.5531

Philip Devenish has a decade of experience resolving high-profile disputes in emerging markets. He has acted on some of the largest and most significant global cases in recent history, as ranked by The American Lawyer and Global Arbitration Review. He is recognized by Who's Who Legal (2021) "as being among the world's highest ranked arbitration lawyers."

Philip represents clients facing commercial disputes, business expropriation, political risk, and government abuses around the world. He has appeared in cross-border matters before trial and appellate courts (in the United Kingdom, Luxembourg, Australia, and elsewhere) and dozens of arbitral tribunals (seated in London, Paris, The Hague, Geneva, Zurich, Hong Kong, Singapore, and Washington, D.C.). He also has experience defending clients in multijurisdictional investigations conducted by foreign government authorities.

Before joining Jones Day, Philip served as a principal member of the trial team that secured a $1.3 billion victory on behalf of JSC Oschadbank in an arbitration against Russia. This case marked the first occasion that Russia had been held internationally liable for seizing assets in Crimea and remains one of the largest investor-State arbitration awards in history. Over the past decade, Philip has obtained more than $2 billion in settlements, awards, and judgments.

Philip is recognized as a key lawyer in global disputes by The Legal 500, Who's Who Legal, and Guide to the World's Leading Experts. Clients and peers say he is an "outstanding" practitioner; "capable, efficient and very intelligent"; with "strategic input that is always spot on."


  • 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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