Chambers Review
Provided by Chambers
Contact number
202-663-6000Provided by WilmerHale
Our international arbitration group has been involved in more than 650 proceedings in recent years. We have successfully represented clients in a number of the largest institutional arbitrations and several of the most significant ad hoc arbitrations to arise in the past decade. We pride ourselves on consistently achieving our clients’ objectives through efficient staffing and the use of in-house know-how and precedents.
Our multinational team consists of more than 70 lawyers in the United States and Europe, all of whom practice principally in the international arbitration field. Centered in the London office, the practice has additional team members in New York, Washington, Beijing, Palo Alto, Frankfurt and Berlin. Many members of our team are dedicated entirely to international arbitration, with a number of lawyers offering experience in particular fields (such as oil and gas, insurance, joint venture and M&A). Our counsel and associates include highly talented younger lawyers with specific training. Lawyers in our various offices routinely work closely together on disputes, as well as with local counsel when appropriate. Our international arbitration group includes both common and civil law practitioners, and prides itself on working together as an integrated team.
To learn more about our International Arbitration practice, please visit: https://www.wilmerhale.com/en/solutions/international-arbitration
Provided by Chambers
Provided by Chambers
They have a willingness to dig in and develop a deep understanding of the underlying tech and technical arguments and the ability to simplify complex ideas for a non-technical audience. The team is well prepared and well organized, with extensive experience in international arbitration.
The arbitration department is incredibly detail-oriented and focused on a fair resolution while protecting our interests. We have a unique structure and they have comprehended what our products are quickly and effectively.
I have impressed with how they can explain scenarios and talk through options with individuals on the senior management team. It's a real pleasure to work with WilmerHale, all of them.
WilmerHale stands out for its combination of world-class legal intellect with tactical agility. They provide not only legal advice, but also clear strategic direction, balancing robust advocacy with a sophisticated understanding of cross-cultural dynamics. Their ability to synthesize a deep command of local law and regulation with elite international arbitration practice is, in my experience, unmatched.
They're very professional and thorough in the work they produce, plus they have a very diversified skill set.
They have a willingness to dig in and develop a deep understanding of the underlying tech and technical arguments and the ability to simplify complex ideas for a non-technical audience. The team is well prepared and well organized, with extensive experience in international arbitration.
The arbitration department is incredibly detail-oriented and focused on a fair resolution while protecting our interests. We have a unique structure and they have comprehended what our products are quickly and effectively.
I have impressed with how they can explain scenarios and talk through options with individuals on the senior management team. It's a real pleasure to work with WilmerHale, all of them.
WilmerHale stands out for its combination of world-class legal intellect with tactical agility. They provide not only legal advice, but also clear strategic direction, balancing robust advocacy with a sophisticated understanding of cross-cultural dynamics. Their ability to synthesize a deep command of local law and regulation with elite international arbitration practice is, in my experience, unmatched.
They're very professional and thorough in the work they produce, plus they have a very diversified skill set.
Provided by Chambers

Her case strategy and advocacy skills were outstanding. I think she is one of the best arbitration advocates in international arbitration worldwide.
She is a world-class lawyer and advocate with a uniquely measured and diplomatic style that is exceptionally persuasive. She consistently delivers work of the highest quality through meticulous preparation and sharp execution. She has demonstrated an exceptional ability to adapt her approach to the evolving stages of the case, exercising impeccable judgment and strategic acumen to achieve outcomes in the client’s best interests.
She's an incredibly responsive, responsible and skilled lead attorney.

Throughout her involvement, she exhibited unwavering professionalism and a consistent commitment to the highest quality of work.

John Trenor offers robust strengths in commercial disputes, investment treaty matters and in public international law work. He acts for a broad range of sovereigns, corporates and international organizations.
John’s cross-examination skills are superb. His attention to detail and split second decision-making skills are superb.


