Philip J.Devenish


Dubai + 971.4.709.8417

Philip Devenish dedicates his practice to resolving the most difficult, complex, and high-value international disputes. Over the past eight years, he has won or settled 100 percent of his cases, securing billions of dollars in awards and judgments.

Philip has acted for and against commercial and State parties from more than 50 countries in some of the largest and most important cross-border disputes of the past decade, as ranked by The American Lawyer and Global Arbitration Review. His successes include a US$1.1 billion damages award against Russia over the expropriation of banking investments in Crimea. More recently, he settled a US$2 billion dispute for the Kingdom of Saudi Arabia during the Qatar diplomatic crisis.

Philip has managed arbitrations under every major institution (including the ICC, LCIA, HKIAC, SIAC, SCC, DIAC, AAA, and ICSID) spanning all the leading global arbitration hubs (London, Paris, Singapore, Hong Kong, Geneva, Zurich, The Hague, Stockholm, Dubai, New York, and Washington D.C.). He also handles multijurisdictional cross-border litigation, with particular emphasis on complex fraud, asset-tracing, and enforcement.

Philip is consistently ranked among the top arbitration lawyers in the world. He is named in The Legal 500 UK's Arbitration Powerlist of leading arbitrators who are "deemed the gold standard by businesses." Legal directories describe him as an "exceptionally talented professional" (Chambers UK) who is "widely praised by peers and clients" (Expert Guides) and has "practiced at the very top for many years" (The Legal 500 UK).


  • German businessman arbitrates ICSID claim against LebanonJones Day is representing German businessman Mr. Abed El Jaouni in ICSID proceedings against Lebanon.
  • Canadian mining company initiates UNCITRAL arbitration against KazakhstanJones Day represents a Canadian mining company in an UNCITRAL arbitration against the Republic of Kazakhstan.
  • Major European electrical grid operator defends against changes of regulated tariffsJones Day is advising a major electrical grid operator and its shareholders, the majority of which are leading investors in energy infrastructure, on bringing claims under the Energy Charter Treaty in arbitration for unforeseeable changes of the system of computing regulated network tariffs which were incompatible with the relevant EU framework and adversely impacted budgets based on legitimate expectations.
  • PTTGC acquires allnex from AdventJones Day advised PTT Global Chemical Public Company Limited in the €4 billion acquisition of allnex Holding GmbH from Advent International.
  • Major pharmaceutical company arbitrates claims arising out of Chinese investmentsJones Day is representing a major pharmaceutical company in a Hong Kong International Arbitration Centre arbitration arising out of representations and warranties given in respect of the client's investment in a Chinese drug development company whose senior officers and consultants were subsequently prosecuted in the United States for misappropriation of another pharmaceutical company's trade secrets.
  • 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.