Three Crowns LLP
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Constantine Partasides KC and Reza Mohtashami KC jointly lead the public international law offering at international dispute specialist firm Three Crowns LLP, which is praised for its ‘great depth of expertise’. Partasides has a strong track record advising on high-value international arbitrations, while Mohtashami takes point on investor-state disputes, particularly in the Middle East. Gaëtan Verhoosel KC handles investment treaty disputes, with particular expertise in the power, oil and gas, and renewables industries, and Manish Aggarwal, who is dual-qualified in India and England, is another notable individual on the investor-state arbitration front, as is Leilah Bruton. The team is ably assisted by Farouk El-Hosseny and Ridhi Kabra.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
‘Manish Aggarwal and Gaetan Verhoosel are exceptional – stand-out players with a real attention to detail and a pleasure to deal with.’
'Great depth of expertise across both PIL and arbitration generally.'
Key clients
- ConocoPhillips
- ContourGlobal
Work highlights
Obtained, in January 2025, a unanimous rejection from the ICSID Annulment Committee of Venezuela’s attempts to challenge a landmark 2019 US$8 billion award in favour of the client ConocoPhillips.