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Three Crowns LLP

Arbitration (International)

Global Guide 2026 : Global Market Leaders

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Three Crowns LLP

Rankings

Chambers Review

Provided by Chambers

Arbitration (International) - Global Market Leaders

Band 1

What the Team is Known For

Three Crowns is a market-leading global practice skilled at handling both PIL and international arbitration. The firm incorporates teams located in London, Washington, DC, Paris and Singapore. The firm offers:

• Expertise in both commercial arbitration and investment treaty claims, particularly in Europe and Latin America.

• Experience representing sovereign states and private sector heavyweights.

• In-depth knowledge of disputes arising in the energy, natural resources and financial services sectors, as well as construction arbitration.

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Strengths

Provided by Chambers

  • Three Crowns are a high quality arbitration firm.

    Arbitration (International) respondentGlobal

Notable Practitioners

Provided by Chambers

  • Constantine Partasides
    Constantine Partasides

    Constantine Partasides

    Constantine Partasides KC is based in London and is one of the founding partners of the firm. He is highly commended in the international arbitration field and is renowned for his extensive experience representing clients across a range of international arbitration and public international law matters. Areas of strength include excellent knowledge of the energy and natural resources industry, as well as a strong ability to handle ground-breaking investment treaty arbitrations.

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  • Gaëtan Verhoosel
    Gaëtan Verhoosel

    Gaëtan Verhoosel

    Gaëtan Verhoosel KC is one of the founding partners at Three Crowns and is internationally lauded for his exceptional capabilities as an arbitrator. He often features in and leads landmark arbitrations and obtains high value awards across a range of investor-state and commercial matters. His practice spans a diverse range of industries and he is admitted to practice in England and Wales, Spain and France, making him an ideal practitioner for cross-border mandates.

    • Gaëtan is excellent.

      Arbitration (International) respondentGlobal
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  • Georgios Petrochilos
    Georgios Petrochilos

    Georgios Petrochilos

    Georgios Petrochilos KC is qualified to practice Greek, UK and French law and is regarded a strong practitioner in the field given his depth of experience in international arbitration. He frequently in commercial, investor-state and state-versus-state disputes, as well as being exceptionally qualified acting as counsel in ICC, SCC, ICSID, UNCITRAL and LCIA matters.

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  • Todd Wetmore
    Todd Wetmore

    Todd Wetmore

    Todd Wetmore is a founding partner of the firm and is based in Paris. His broad practice includes an impressive ability to handle complex arbitrations across the European, African and Middle Eastern jurisdictions, and his sectorial expertise lies in technical sectors such technology, energy, construction and infrastructure. As a previous vice president of the ICC Court of Arbitration, he is noted for his deep knowledge in investment treaty and commercial arbitrations.

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Ranked Individuals at Three Crowns LLP (5)

Global Market Leaders

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