Department profile
Arnold & Porter

International Arbitration: Investor-State Arbitration

Global Guide 2026 : UK

Share profile

Arnold & Porter

Rankings

Chambers Review

Provided by Chambers

International Arbitration: Investor-State Arbitration - UK

Band 2

What the Team is Known For
Arnold & Porter has a distinguished team renowned for advising sovereign states in Europe, Latin America and Asia on investment arbitrations. The firm demonstrates notable experience handling disputes under ICSID and UNCITRAL rules. It is adept at advising on cases that cover a range of sectors, including mining, financial services and construction, among others.
View ranking table

Work Highlights

Provided by Chambers

  • Arnold & Porter represented the Republic of Colombia in an ICSID arbitration regarding an order to suspend further work to expand the Cerrejón mining project.

Strengths

Provided by Chambers

  • The team are extremely good at handling very complex matters.

    International Arbitration: Investor-State Arbitration respondentGlobal

  • This department stands out for its deep expertise in investment arbitration, the direct involvement of senior partners, and exceptional client service.

    International Arbitration: Investor-State Arbitration respondentGlobal

  • They are very responsive and client-friendly.

    International Arbitration: Investor-State Arbitration respondentGlobal

Notable Practitioners

Provided by Chambers

  • Patricio Grané Labat
    Patricio Grané Labat

    Patricio Grané Labat

    Patricio Grané Labat has a strong reputation for his work in the investor-state space. He is regularly instructed by clients based in Latin America.

    • He has an extraordinary ability to see details and the big picture at the same time.

      International Arbitration: Investor-State Arbitration respondentGlobal

    • He distinguishes himself through strategic thinking and practical solutions tailored to complex challenges.

      International Arbitration: Investor-State Arbitration respondentGlobal
    View profile
  • Álvaro Nistal
    Álvaro Nistal

    Álvaro Nistal

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

    • He has a very sharp commercial mind.

      International Arbitration: Investor-State Arbitration respondentGlobal

    • He consistently demonstrates meticulous attention to detail, ensuring that every aspect of a case is carefully analysed and addressed.

      International Arbitration: Investor-State Arbitration respondentGlobal
    View profile
  • David Reed
    David Reed

    David Reed

    David Reed's practice involves advising both sovereign states and investors on a range of issues. He demonstrates strength in handling investor-state and commercial arbitration, with recent work involving disputes under ICSID and ICC rules.

    • David is extremely responsive to the client's needs and has very strong legal and sector knowledge.

      International Arbitration: Investor-State Arbitration respondentGlobal

    • David is a savvy strategist and excellent oral advocate, and he keeps the bigger picture in mind.

      International Arbitration: Investor-State Arbitration respondentGlobal

    • He does what it takes to win.

      International Arbitration: Investor-State Arbitration respondentGlobal

    • David is a high-class counsel capable of meeting any challenge and providing the best defence of the client.

      International Arbitration: Investor-State Arbitration respondentGlobal
    View profile
  • Bart Wasiak
    Bart Wasiak

    Bart Wasiak

    Bart Wasiak is a senior associate in Arnold & Porter's international arbitration team. He is noted for his representation of states in investment treaty arbitrations.

    • He is smart, very knowledgeable and always on top of the detail.

      International Arbitration: Investor-State Arbitration respondentGlobal

    • Bart is extremely diligent.

      International Arbitration: Investor-State Arbitration respondentGlobal
    View profile

Ranked Individuals at Arnold & Porter (4)

UK

Arnold & Porter has rankings in the following guides

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership