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Guglielmo Verdirame KC

Guglielmo Verdirame KC

Global 2026

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Twenty Essex
 Twenty Essex

Ranked in 2 practice areas

Public International Law: The English Bar

Global Market Leaders

5 years ranked

International Arbitration - The English Bar

Global Market Leaders

2 years ranked

About

Provided by Twenty Essex

Global

Practice Areas

Lord Verdirame KC specialises in public international law, international arbitration (especially investment treaty arbitration and inter-state arbitration), human rights and constitutional law. His practice covers the full range of public international law including international dispute resolution; immunities; foreign investment protection; law of the sea; territorial and maritime boundary disputes; status of territories; human rights; use of force; law of armed conflict; international organisations; sanctions; trade.

He regularly advises States on inter-state disputes and acts as counsel before international courts and tribunals in such disputes (including before the ICJ, ITLOS, Annex VII Tribunal under UNCLOS, the ECHR).

While he works mainly as counsel, Guglielmo has also sat as arbitrator.

Chambers Review

Provided by Chambers

Chambers Global Guide

Public International Law: The English Bar - Global Market Leaders

Band 2
Individual Editorial

Lord Verdirame is active in a broad spectrum of PIL work, tackling cases dealing with international human rights, BITs and inter-state disputes. He is a noted academic in this area, and has appeared before UK courts and various international arbitration tribunals including the Permanent Court of Arbitration.

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International Arbitration - The English Bar - Global Market Leaders

Band 4
Individual Editorial

Lord Guglielmo Verdirame KC is recognised for his sophisticated international arbitration practice. He has notable experience advising on high-value investment treaty disputes, representing a host of sovereign states and multinational companies. He has appeared before various international arbitration tribunals including the Permanent Court of Arbitration, ICSID and UNCITRAL.

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Strengths

Provided by Chambers

  • Guglielmo is one of the smartest lawyers.

    Public International Law: The English BarChambers Global Guide

  • He is accomplished and collegiate.

    Public International Law: The English BarChambers Global Guide

  • He is a sophisticated and very polished advocate. He is very knowledgeable in international law.

    Public International Law: The English BarChambers Global Guide

  • Guglielmo is a very accomplished international lawyer, and he works in an extremely collegiate manner.

    International Arbitration - The English BarChambers Global Guide

  • He is a very sophisticated and very polished advocate, and very knowledgeable in international law.

    International Arbitration - The English BarChambers Global Guide

Ranked Barristers at Twenty Essex (114)

Asia-Pacific Region

Europe-wide

Global Market Leaders

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