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Sylvia Noury


Sylvia is a partner in our international arbitration practice in London.





Sylvia specialises in commercial and treaty arbitrations with a focus on emerging markets – particularly in Latin America and Africa. She has advocated before ICC, AAA, LCIA, ICSID and UNCITRAL tribunals and has particular expertise in disputes arising in the energy, natural resources and telecoms sectors. Sylvia has acted in major disputes in a variety of jurisdictions, including Argentina, Bolivia, Chile, Ghana, India, Iran, Kenya, Uganda, Peru, Venezuela and Yemen. Her clients include Anglo American, BG Group, Deutsche Telekom, MTN, National Grid and Tullow.  Outside the hearing room, she advises clients on how best to mitigate risk, settle or avoid disputes altogether.

Sylvia has previously worked in our New York and Paris offices and is a prolific writer and speaker in her field.  A dual English-Spanish national, she is fluent in Spanish, and completed an internship in an Argentine law firm.

Sylvia Noury is … described as a “fantastically well-rounded arbitration practitioner” who is “extremely thorough, tremendously focused and very professional”.
Who's Who Legal: Arbitration - Future Leaders 2017
‘Sources describe Sylvia as "very smart, quick and strategic in the way she runs her cases".’
Chambers Latin America-wide, International Arbitration 2015
‘Sylvia Noury is held in high regard for her work in both investor-state and commercial arbitrations. Clients value her "outstanding intellect and no-nonsense attitude".’
Chambers UK, International Arbitration 2015
‘Sources say she is “impressive in every single respect”.’
Chambers UK, International Arbitration 2013

Recent deals/Highlights

  • Anglo American plc (ICSID Additional Facility) and Vestey Group (ICSID) in their bilateral investment treaty claims against the Republic of Venezuela.
  • An African government, successfully settling a series of (ICC and UNCITRAL) contractual arbitrations in the defence sector.
  • BG Group plc, CMS Gas Transmission and National Grid plc in their (successful) bilateral investment treaty claims, under the ICSID and UNCITRAL Rules, against the Republic of Argentina, including the sale of their eventual awards.
  • MTN Group in its bilateral investment treaty claim before ICSID against Yemen, and Sabafon in a parallel UNCITRAL arbitration against Yemen under its Investment Law.
  • Tullow Group in its two ICSID arbitrations against the Government of Uganda arising under production sharing agreements.


  • Publications include ‘Commentary on the ICSID Convention’ (Concise International Arbitration, Kluwer, 2010).
  • Member of the Editorial Board of Global Arbitration Review (GAR).
  • Speaking roles include conferences organised by the IBA, ICC, BIICL, ABA, ITA, CRCICA, YAS and AIJA.


  • Featured in GAR as one of the 45 leading figures of the international arbitration bar under the age of 45 (“GAR 45 under 45”).
  • Featured in The Lawyer’s “Hot 100” lawyers ranking.

Qualifications and education

  • First-class Honours, Law LLB, Cambridge University
  • Awarded the Clive Parry scholarship for Public International Law from Cambridge University.


English, Spanish and French.

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