
Paul Hastings LLP boasts a leading practice in international arbitration, representing leading multinationals on complex matters. The team is particularly skilled at handling matters in the life sciences sector, as well as leading international matters spanning the energy, financial services, and infrastructure sectors. Notably, members of the practice recently advised a global telecommunications company in obtaining a high-value international arbitration award of $380 million against the Republic of Colombia, in the highest-value arbitration award ever brought against the government. Having joined the Washington DC office in March 2024 from White & Case LLP, Jonathan Hamilton leads the team. Hamilton has vast expertise handling matters in the aviation, energy, and financial services fields, and is skilled at investment arbitrations, having acted on a number of novel claims. Also recently arriving from White & Case LLP are Alejandro Martinez de Hoz, Jaime Crowe, and Jonathan Ulrich. In Los Angeles, Susan Leader joined from Wilson Sonsini Goodrich & Rosati.
Legal 500 Editorial commentary
- Profile
Testimonials
Collated independently by Legal 500 research team.
- 'Very professional and talented counsel.'
- 'Alejandro Martinez de Hoz. Young, talented, an emerging leader in disputes.'
Key clients
- Telefonica S.A.
- Zurich Insurance Company Ltd.
- Daiichi Sankyo, Co. Ltd.
- Nu Dotco, LLC
- Rutas De Lima S.A.C.
- Glocal Health Care Systems Private Limited, Dr. Syed Sabahat Azim, Richa Sana Azim, Gautam Chowdhury, Kimberlite Social Infra Private Limited
- Meta/Facebook
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.

Practice head
Jonathan Hamilton
Other key lawyers
Alejandro Martínez de Hoz; Jaime Crowe; Jonathan Ulrich; Susan Leader