Philip J.Devenish


Dubai + 971.4.709.8417

Philip Devenish is a highly rated solicitor with a heavyweight cross-border disputes practice. In recent years he has won billions of dollars for clients in high-profile cases around the world.

Philip has represented major corporations and financial institutions, ultra-high-net-worth individuals, and sovereign States in some of the largest and most important arbitrations of the past decade, as ranked by The American Lawyer and Global Arbitration Review.

Among other successes, he served on the counsel team that secured a US$1.1 billion damages award for a commercial bank in a landmark arbitration arising out of the expropriation of its investments in Eastern Europe. His recent work includes defending the Kingdom of Saudi Arabia in a US$2 billion arbitration arising out of the Qatar diplomatic crisis.

Philip also has acted for British, Australian, and Canadian mining companies in natural resource disputes spanning sub-Saharan Africa, Eastern Europe, Central Asia, Southeast Asia, and Australia. According to JusMundi, his team has one of the world's busiest mining arbitration practices.

Philip is consistently ranked as a leading dispute resolution lawyer and has received various accolades for his work. 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).


  • 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.
  • Canadian mining company initiates UNCITRAL arbitration against KazakhstanJones Day represents a Canadian mining company in an UNCITRAL arbitration against the Republic of Kazakhstan.