Department profile
Arnold & Porter

Public International Law

UK Guide 2026 : UK-wide

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Arnold & Porter

Rankings

Chambers Review

Provided by Chambers

Public International Law - UK-wide

Band 4

What the Team is Known For

Arnold & Porter boasts an impressive PIL and investor-state arbitration practice. The team possesses enviable experience representing national governments, NGOs and corporations in Latin American, Europe and the APAC region in high-profile commercial, BIT and international human rights disputes. The firm represents its clients in the ECtHR, in the ICJ and across the full gamut of ICSID proceedings. Sector expertise includes telecoms, natural energy and mining.

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Work Highlights

Provided by Chambers

  • Arnold & Porter represented ILGA-Europe in a number of proceedings before the European Court of Human Rights concerning the protections of the LGBTQ+ community.

Strengths

Provided by Chambers

  • The department has demonstrated diligence, attention to detail, and the highest standards of quality.

    Public International Law respondentUK

  • They have an excellent roster of highly experienced ISDS and commercial arbitration counsel.

    Public International Law respondentUK

  • Arnold & Porter provides excellent legal services.

    Public International Law respondentUK

Notable Practitioners

Provided by Chambers

  • Patricio Grané Labat
    Patricio Grané Labat

    Patricio Grané Labat

    Patricio Grané Labat capably advises clients on investor-state arbitration, international commercial disputes and public international law, possessing particular expertise in Latin American affairs. He represents sovereign states, NGOs and corporate clients. He has appeared before the ECtHR and in ICSID arbitrations.

    • He is comprehensive in his approach and incredibly experienced.

      Public International Law respondentUK

    • Patricio is a tenacious advocate and works incredibly hard for his clients.

      Public International Law respondentUK
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  • Álvaro Nistal
    Álvaro Nistal

    Álvaro Nistal

    Álvaro Nistal is recognised for his diverse PIL and investor-state arbitration practice. He has notable expertise advising sovereign states in Latin America, the Middle East and Africa.

    • He is extremely knowledgeable on PIL matters and he has a great focus on delivering the best possible outcome for the client.

      Public International Law respondentUK

    • He is one of the finest PIL practitioners of his generation.

      Public International Law respondentUK

    • He has exceptional knowledge of public international law and is a rigorous and highly strategic lawyer.

      Public International Law respondentUK
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Ranked Individuals at Arnold & Porter (2)

UK-wide

Arnold & Porter has rankings in the following guides

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