Investor-State Arbitration in Europe

As part of Debevoise’s European arbitration and international disputes capabilities, the team includes the world’s foremost investor-state arbitration practice. It is regularly engaged on cases involving state-to-state and billion dollar investor state claims, where its experience in public international law provides it with a significant advantage.

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Winner in the “International Arbitration Practice that Impressed” category

GAR Awards, 2020


Ranked as a leading law firm for Investor-State Arbitration and Public International Law.

“They’re superb and are deeply experienced in this area. It is great to have them on your side and you wouldn’t want to be against them.”

“Absolutely brilliant. The team is thorough, rigorous and they are great in both the detail and the big picture.”

“The team has exceptional capacity for handling issues of any complexity, and can handle various international public law issues.”

“They have stellar people in the field.”

“The quality of their work is impeccable.”

Chambers UK, 2023-2024


Lord Goldsmith, KC, Tony Dymond, Patrick Taylor and Samantha Rowe included in The Legal 500 International Arbitration Powerlist.

Ranked as a top-tier law firm for International Arbitration and Public International Law.

“A go-to firm for international arbitration.”

“Almost unrivalled in its experience, expertise, depth and overall performance.”

“Continuously demonstrating exceptional legal expertise in public international law and arbitration, as well as professionalism, innovative thinking, and a commitment to client service.”

“The public international law work that Debevoise does is fantastic and it is head and shoulders above other firms.”

“The Debevoise team has shown remarkable reactivity skills when needed – very pragmatic and solution-oriented advice and analyses.”

The Legal 500 UK, 2023-2024


Ranked as a leading law firm for International Arbitration in the UK.

Chambers Europe, 2024

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The Debevoise team has authored various guides and tools to further the practice of international arbitration, including the industry standard setting Efficiency Protocol, and the Protocol to Promote Cybersecurity in International Arbitration.

These resources can be found here.

Debevoise named in top band for Arbitration (International) and Public International Law – Global Market Leaders. Also ranked as a leading firm for Dispute Resolution - Global: Multi-Jurisdictional by Chambers Global (2023).

“Debevoise & Plimpton are excellent. They think strategically with a forward-looking perspective.”

“Debevoise are an exceptionally talented group … the written and oral advocacy is of top quality.”

“The best of the best.”

“The Debevoise team is superb …Coordination is entirely seamless and the different jurisdictions are used to the team’s advantage.”

“Debevoise excels at handling global disputes. They have talented lawyers who speak many languages and understand cultural norms and sensitivities.”

Chambers Global, 2021-2023

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