Three Crowns LLP

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Antonia Quintella de Azambuja

Antonia is an international associate in the Washington, DC office. She specializes in international commercial arbitration and has significant experience representing multinational corporations in cross-border disputes ranging across various industries, including construction, oil & gas, finance, transportation, entertainment, and food & beverages. Antonia has acted in proceedings under a number of arbitration rules, including ICC, AAA-ICDR, and CAM-CCBC.

Constantine Partasides KC

Constantine, one of the founding partners of Three Crowns, has appeared as lead counsel in some of the largest international arbitrations of the last two decades. He has secured a series of multi-billion dollar awards for his clients, and defended others in ‘bet-the-company’ claims arising in a number of different business sectors. He is also listed in the “Hall of Fame” for international arbitration in The Legal 500.

Farouk El-Hosseny

Farouk, a senior associate in our London office, advises clients on arbitrations governed by the ICC, ICSID, LCIA, and UNCITRAL rules, with a focus on complex commercial and investor-State disputes in the oil and gas and telecommunications sectors. He is often called upon by clients to provide strategic advice in respect to disputes raising matters of force majeure, taxation, international sanctions, and claims by competing governments.

Gaëtan Verhoosel KC

Gaëtan is a founding partner of Three Crowns. He has close to 25 years of experience serving as advocate or arbitrator in both commercial and investment treaty arbitrations.

Hamid Abdulkareem

Hamid, counsel in the London office, is an experienced arbitration practitioner and litigator, having regularly advised multinational companies on an extensive range of disputes, particularly within the energy and natural resources sector. He has played a lead role in multiple disputes arising from Nigeria’s deep offshore production sharing contracts, resulting in successful outcomes for his clients. Hamid is recognised in The Legal 500 UK for international arbitration and public international law.

Jeff is a senior associate in the London office. He has represented governments, state-owned enterprises, and multinational corporations in investment treaty and commercial disputes under all major arbitral rules, with particular expertise in the energy and natural resources, technology, and financial services sectors. Jeff also has experience in commercial litigation, having represented clients in high value and complex disputes in the English and Hong Kong courts. He is qualified as a solicitor-advocate in England & Wales and a solicitor in Hong Kong.

Jonathan Fernandes

Jonathan, an English-qualified solicitor advocate and Counsel based in the London office, has extensive experience acting as counsel in complex, high-value international commercial and investment treaty arbitrations across a wide range of sectors (including energy, aerospace, commodity trading, mining, finance, construction, and insurance) under all major arbitration rules.

Leilah is a partner in our London office. She has extensive experience representing corporations on the resolution of complex disputes involving investment treaties and contractual relationships, with a particular focus on disputes in the oil & gas, mining, and telecoms sectors. Leilah has also been recognised as a Next Generation Partner for both international arbitration and public international law in The Legal 500 UK 2023, and a Rising Star in The Legal 500’s International Arbitration Powerlist 2019 for the UK.

Manish Aggarwal

Manish is a dual-qualified English solicitor and Indian advocate, and partner in the London office. He has extensive experience of representing clients in both commercial and investment treaty arbitrations across a broad range of sectors (including energy, infrastructure, life sciences, telecommunications, and technology) and in arbitration-related court litigation. He has also been recognised in the India Business Law Journal’s list of top international lawyers for India-related matters, in which peers describe him as a “highly skilled advocate with a staggering depth of investment law insight”.

Reza Mohtashami KC

Reza is a partner in the London office. He has represented clients as counsel and advocate in more than 90 arbitrations conducted under a variety of arbitration rules in many different jurisdictions. Reza has particular expertise in disputes arising in emerging markets with a focus on the telecoms, energy, and infrastructure sectors. Reza regularly acts as arbitrator and has been appointed as party-nominated arbitrator, Chair or Sole Arbitrator in more than 20 arbitrations conducted under the ICC, LCIA, ICDR-AAA, SIAC, DIAC, DIFC-LCIA Rules. Reza is a qualified English solicitor-advocate and was appointed King’s Counsel in recognition of his advocacy skills in 2018.

Richard Trinick

Richard is counsel in the London office. He has acted on many large and complex arbitrations across a variety of sectors and regions, with a particular focus on energy, M&A, finance, and life sciences disputes. Richard is recognised as a recommended lawyer for international arbitration in The Legal 500 UK��s 2023 and 2024 guides.

Ridhi is a senior associate in the London office. Her experience includes advising clients in investment treaty and commercial arbitrations relating to taxation, oil and gas, infrastructure, and joint venture disputes. She has acted in several arbitrations under the ICSID, ICC, LCIA and UNCITRAL Rules. Ridhi is recognised as a recommended lawyer in The Legal 500 UK’s 2023 and 2024 guides for international arbitration and public international law.