Ranking tables

International Arbitration: Arbitrators | UK

UK-wide

Chambers UK ranks the best lawyers and law firms advising on international arbitration proceedings. This includes disputes brought at major seats of arbitration around the world, such as the ICC, the ICSID and the LCIA, as well as ad hoc proceedings. The solicitors we rank handle arbitrations concerning both private commercial disputes and those that arise between sovereign states and investors, including claims brought under bilateral and multilateral investment treaties. Some handle a mixture of both while others have more specialised practices. Several of the top ranked individuals here also have exceptional practices in the broader field of Public International Law, for which we have separate rankings. Please note that there is also a separate table dedicated to the most noted arbitrators in the UK.

All Individuals profiles

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Band 1

  1. Christopher Newmark
    1
    Christopher Newmark
    Spenser Underhill Newmark LLP | International Arbitration: Arbitrators
    2025 | Band 1 | 25 Years Ranked
    Christopher Newmark of Spenser Underhill Newmark is an expert arbitrator with considerable experience performing under a range of arbitral rules, with especial knowledge of ICC proceedings. He is regularly appointed as chair, sole and party arbitrator.
  2. Constantine Partasides KC
    1
    Constantine Partasides KC
    Three Crowns LLP
    Three Crowns LLP | International Arbitration: Arbitrators
    2025 | Band 1 | 17 Years Ranked
    Constantine Partasides KC is a highly esteemed arbitration specialist acting for top-echelon clients in complex commercial and investment treaty disputes. He is also recognised for his capabilities as arbitrator.
  3. Dominic Spenser Underhill
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    Dominic Spenser Underhill
    Spenser Underhill Newmark LLP | International Arbitration: Arbitrators
    2025 | Band 1 | 8 Years Ranked
    Dominic Spenser Underhill of Spenser Underhill Newmark has extensive experience sitting in a broad range of disputes conducted under ICC, LCIA, LMAA and UNCITRAL rules.
  4. Gary Born
    1
    Gary Born
    WilmerHale
    WilmerHale | International Arbitration: Arbitrators
    2025 | Band 1 | 27 Years Ranked
    Chair of the firm's international arbitration group, Gary Born is a market-leading arbitration practitioner at the forefront of complex and high-value commercial and investment treaty disputes. He maintains a truly international presence, acting as counsel and arbitrator in disputes across the Middle East, the USA and South America, among other jurisdictions. He is well versed in a range of proceedings, including those under ICC, ICSID and UNCITRAL rules.
  5. Kate Cervantes-Knox
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    Kate Cervantes-Knox
    Cervantes-Knox Arbitration Ltd | International Arbitration: Arbitrators
    2025 | Band 1 | 14 Years Ranked
    Kate Cervantes-Knox of Cervantes-Knox Arbitration is highlighted for her extensive expertise in the oil and gas sector and demonstrates notable strength in Africa and the Americas. She is experienced as an independent arbitrator in commercial and investor-state arbitrations.
  6. 1
    Loukas Mistelis
    Clyde & Co LLP
    Clyde & Co LLP | International Arbitration: Arbitrators
    2025 | Band 1 | 1 Years Ranked
    Loukas Mistelis is an absolute expert in this field and knows arbitration in a fantastically deep way. He has a very deep knowledge of arbitration and is a renowned academic in his field.
  7. Lucy Greenwood
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    Lucy Greenwood
    Greenwood Arbitration | International Arbitration: Arbitrators
    2025 | Band 1 | 2 Years Ranked
    Lucy is a wonderful arbitrator. She is really smart, careful, objective and fair. She is very good at managing clients and attorneys and reaching a unanimous decision.
    Key sectors
    Energy and Utilities|Environmental and Waste|Industrials, Engineering and Manufacturing|Property, Construction and Infrastructure|Resources and Mining
  8. Robert Volterra
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    Robert Volterra
    Volterra Fietta
    Volterra Fietta | International Arbitration: Arbitrators
    2025 | Band 1 | 21 Years Ranked
    Robert Volterra is a formidable arbitration specialist with long-standing expertise in investor-state arbitration. He attracts an impressive international client base with a broad caseload of complex investment treaty claims, and is experienced in acting as both counsel and arbitrator.
  9. Eva Kalnina
    Arbitration Chambers | International Arbitration: Arbitrators
    2025 | Band 1
  10. John Beechey
    Arbitration Chambers | International Arbitration: Arbitrators
    2025 | Band 1
  11. Juliet Blanch
    Arbitration Chambers | International Arbitration: Arbitrators
    2025 | Band 1
  12. Paula Hodges KC
    Paula Hodges KC Arbitration | International Arbitration: Arbitrators
    2025 | Band 1