International Arbitration: Investor-State Arbitration
UK Guide 2025 : UK-wide
Band 1
Contact number
+44 20 3530 7950Chambers Review
Three Crowns houses an acclaimed international arbitration outfit with an impressive client roster, featuring well-known names from the energy, natural resources, financial services, telecoms and engineering sectors. The firm fields a heavyweight team of arbitration specialists with expertise in both commercial arbitrations and investor-state disputes, acting for clients across Latin America, the Middle East and Africa. The team has extensive experience acting for clients in arbitrations under the rules of the major arbitration institutions, such as ICSID, the LCIA and the ICC. It is well versed in handling BIT claims and disputes brought under the Energy Charter Treaty.
Work Highlights
- Three Crowns represented ContourGlobal Kosovo in its claims against the Government of the Republic of Kosovo and various publicly owned enterprises of the Republic of Kosovo in a London-seated ICC arbitration, after the initial ICSID arbitration was terminated.
Strengths
Provided by Chambers
"Three Crowns has a very pragmatic approach linked to the commercial side while maintaining good legal skills and professionality.They are always very responsive."
"Three Crowns is a very sharp law firm with an appetite for out of the box thinking. They have sharp minds, dig very deep, and have a great capacity to coordinate actions in various jurisdictions."
"Three Crowns produces excellent deliverables. They have a high level of technical competencies and are masters at what they do. Their practice is excellent and it is a pleasure to work with them"
"Three Crowns is top class when it comes to strategy and execution. The team is multicultural and adapted to the specific needs of the case.Work product was delivered flawlessly."
"Three Crowns has excellent expertise, extensive knowledge of the subject matter and an understanding of the client's strategic objectives. They are responsive, attentive, pragmatic and efficient."
"Three Crowns has a very pragmatic approach linked to the commercial side while maintaining good legal skills and professionality.They are always very responsive."
"Three Crowns is a very sharp law firm with an appetite for out of the box thinking. They have sharp minds, dig very deep, and have a great capacity to coordinate actions in various jurisdictions."
"Three Crowns produces excellent deliverables. They have a high level of technical competencies and are masters at what they do. Their practice is excellent and it is a pleasure to work with them"
"Three Crowns is top class when it comes to strategy and execution. The team is multicultural and adapted to the specific needs of the case.Work product was delivered flawlessly."
"Three Crowns has excellent expertise, extensive knowledge of the subject matter and an understanding of the client's strategic objectives. They are responsive, attentive, pragmatic and efficient."
Notable Practitioners
Constantine Partasides KC is a highly esteemed arbitration specialist acting for top-echelon clients in complex commercial and investment treaty disputes. He is also recognised for his capabilities as arbitrator.
"Constantine is very experienced. He has a good balance between legal and practical aspects."
"He is able to get to the bottom of a case, simplify and present it to the court. He is extremely client focused and strategic. He is a class act."
"Constantine's great strengths are in his oral advocacy, leadership and presence."
"Constantine is extremely sharp. He is very business oriented and creative."
"His oral advocacy is really compelling."
Gaëtan Verhoosel KC has earned an excellent reputation for his extensive commercial and investor-state practice, handling arbitrations seated across the world and under the auspices of various institutions. He also accepts appointments as arbitrator.
"Gaëtan is very strategic, sophisticated, responsive and pleasant to work with."
"Gaëtan's attention to detail and client needs is excellent. His capacity to grasp the big picture is unique. His work is always diligent, sophisticated and elegant."
"Gaëtan is very technical and accurate counsel with an immediate global view on matters. He has very good listening skills."
Reza Mohtashami KC devotes much of his arbitration practice to the energy and telecoms sectors, acting for various entities in high-value disputes such as those held under ICC rules. He has a particular focus on the Middle East.
"Reza is very good and extremely responsive. He is very strategic in setting up a defense and handling the counterparties."
"Reza is excellent, he is very brainy."
"Reza has very good knowledge and awareness."
Leilah Bruton has particular expertise in energy, mining and telecoms disputes. She is experienced acting for clients in a range of jurisdictions and under a variety of different arbitral rules.
"Leilah is experienced, responsive to client needs and professional. Her briefs are well written, simplifying complex concepts and adding value."
"Leilah has expert logic in her reasoning."
"Leilah gives well thought through advice and is very responsive."
Ranked Lawyers at
Three Crowns LLP
UK-wide