Mr Hussein Haeri > Withers LLP > London, England > Lawyer Profile

Withers LLP
20 Old Bailey

Living Wage

Work Department

International Arbitration


Partner and co-head of the International Arbitration practice. 

Hussein leads Withers’ international arbitration and public international law teams. He is a Solicitor-Advocate of the Senior Courts of England and Wales, with experience of working on international legal and dispute resolution matters based respectively from London, Paris, New York and South Africa.

He has worked as counsel and advocate on arbitrations under all the major rules, as well as in ad hoc arbitrations. His clients include governments, multinational corporations and international organisations. He also serves as counsel in state-state proceedings before the International Court of Justice and in national courts, including the courts of England and Wales, on public international law issues.

Hussein’s public international law practice includes advising governments and international organisations on international investment law, constitutional and human rights matters, sovereign immunity, sanctions, energy and natural resources, international humanitarian law, the law of the sea and treaty and legislation drafting.

Hussein is a Visiting Lecturer on International Investment Law at SOAS, University of London. He is a Member of the Faculty at the University of Rome, Roma Tre University, Certificate Course in International Commercial and Investment Arbitration. In addition to his work as counsel, he sits as an arbitrator.


English, Arabic, French

Lawyer Rankings

London > Dispute resolution > International arbitration

(Leading individuals)

Hussein HaeriWithers LLP

One of the top acts for international arbitration worldwide‘, Withers LLP handles both major investment treaty and international commercial arbitrations. The international arbitration practice is jointly led by Hussein Haeri, who focuses on assisting clients from the Middle East, North Africa and Sub-Saharan Africa regions; and ‘strategic thinkerEleni Polycarpou. Also key to the group are CIS-related arbitration specialist Tatiana Menshenina; special counsel and international commercial and investor-state arbitration expert Robert Kovacs, and senior associates Camilla Gambarini and Ruzin Dagli.

London > Dispute resolution > Public international law

(Leading individuals)

Hussein HaeriWithers LLP

Experienced and knowledgeable across a wide range of PIL areas‘, Withers LLP‘s London PIL team has a highly active investor-state practice, representing both sovereign states, as well as foreign investors. The group also maintains a robust practice in international human rights litigation, state immunities, enforcement issues and sanctions. The team is jointly led by Hussein Haeri, ‘one of the top PIL experts working from a law firm‘; and consultant global counsel Sir Geoffrey Cox KC, the former Attorney General of England and Wales. The second line of key practitioners includes consultant Aniruddha Rajput, an expert in general international law, investor-state arbitration, boundary disputes, the Law Of The Sea and international trade law; special counsel Robert Kovacs, a specialist in PIL, international arbitration, and business and human rights; and senior associate Camilla Gambarini, who assists with PIL matters and investor-state arbitrations.