‘Brilliant, strategic, and exceptionally talented’, the boutique practice at Three Crowns LLP is co-led by Constantine Partasides KC and Reza Mohtashami KC and advises clients across a range of geographies and industries, including aerospace, energy, construction, and pharma. Founding partner Partasides advises both major corporations and nation-states on ICSID, ICC and LCIA arbitration matters. Mohtashami supports on matters in the energy and construction spaces, and is an ’all-round excellent lawyer’. Gaëtan Verhoosel splits his time between the London and Madrid offices, advising on investment disputes and cross-licensing disputes. Leilah Bruton focuses on the oil & gas, mining, and telecoms sectors, and Jonathan Fernandes assists clients with commercial and investment treaty arbitration matters. Another key member of the team is Richard Trinick, who has particular skills in M&A disputes.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Lawyer & team quality
Client satisfaction: NPS ®
Testimonials
Collated independently by Legal 500 research team.
- Luke Sobota, Richard Trinick, and Mihir Chattopadhyay are exceptional.
- Constantine Partasides is one of the most talented advocates I've worked with in any setting.
- Simply the best international arbitration counsel I've worked with. Brilliant, strategic, and exceptionally talented advocates.
- Liz Snodgrass, Leilah Bruton, and Jeff Yiu are all very engaged and available to advise on short notice. They understand our business and the geopolitical environment. They have a good collaborative approach to working together and possess persuasive advocacy skills.
- The team understands our business, our long-term commercial partnerships with host states, and the complex geopolitical context in which we operate, which is valuable in determining an appropriate legal strategy to resolve disputes.
- The team led by Reza Mohtashami is exceptional in terms of the quality of service provided. They have a deep bench, years of experience in arbitration matters, and are very competent when it comes to defense strategies and helping clients navigate international arbitration processes. Highly recommended.
Key clients
- American Express
- Apfin Investment Pte. Ltd.
- Boeing
- BP
- Chevron
- ContourGlobal
- Crescent Petroleum
- Eni
- ExxonMobil
- Guardian Holdings Limited
- Hoenir Incorporated
- PETRONAS
Work highlights
Representing Crescent Petroleum in two cases against the National Iranian Oil Company arising out of a gas sale and purchase agreement.
Acting for JioStar India in a USD 940 million case against Zee Entertainment, relating to broadcast and digital rights for the ICC men's cricket events.
Representing Hoenir Incorporated in a USD 1.7 billion shareholder dispute with the majority owner of South Korea’s third-largest life insurance company.
Lawyers
Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Leading associates
Leading associates with regular involvement in their team's key work, and recognition from peers or clients as being ones to watch.
Practice head
Constantine Partasides; Reza Mohtashami
Other key lawyers
Gaëtan Verhoosel; Leilah Bruton; Jonathan Fernandes; Richard Trinick