The Legal 500

Twitter Logo Youtube Circle Icon LinkedIn Icon

Shearman & Sterling LLP

Work +1 212 848 4000
Fax +1 212 848 7179

Henry Weisburg

Work +1 212 848 4193
Shearman & Sterling LLP

Work Department

International Arbitration


Partner in Shearman & Sterling's International Arbitration practice


Henry Weisburg is a partner in the International Arbitration and Litigation practices.

He focuses on the resolution of cross-border financial disputes arising out of investments, projects and joint ventures, expropriations, banking insolvencies, sovereign debt restructurings and similar matters.

Henry represents clients in international arbitrations in proceedings administered by many different bodies, including the ICC, ICSID, AAA and LCIA, as well as in ad hoc proceedings.

In addition, Henry regularly appears in domestic courts with respect to issues such as the construction and enforcement of arbitration clauses, arbitral awards and foreign judgments, sovereign immunity issues and matters involving torts under international law. He also acts as arbitrator.

Henry Weisburg has been praised by clients and peers in leading directories as “tremendously smart” and a “hugely experienced” and “very impressive” lawyer with an “electric intellect” who “always has his strategy clearly defined” and is “excellent at preparing a case.”


  • Director, New York International Arbitration Center (NYIAC)
  • Member, Task Force on the Revision of the ICC Rules of Arbitration
  • Member, New York State Bar Association Task Force on New York Law in International Matters
  • Founding Member, The International Arbitration Club of New York
  • Member, London Court of International Arbitration (LCIA)
  • Member, International Arbitration Institute (IAI)
  • Member, American Society of International Law (ASIL)
  • Member, American Bar Association (ABA)


  • New York University School of Law, J.D.
  • Trinity College, B.A.

Latin America: International firms

International arbitration

Within: International arbitration

Shearman & Sterling LLP is representing the Republic of Panama in an ICSID arbitration relating to a series of infrastructure construction projects and is acting for a Latin American aviation consultancy firm in two disputes with European manufacturers arising from the termination of agency contracts. Christopher Ryan, Henry Weisburg and recently promoted partner Ximena Herrera are names to note.

[back to top]

United States: Dispute resolution

International arbitration

Within: International arbitration

Shearman & Sterling LLP has sector strengths in energy, pharmaceuticals, and financial services. In New York, Henry Weisburg has particular expertise in cross-border financial litigation and arbitration matters, having recently represented thirteen investment companies in an ICC arbitration. Over in Washington DC, key members of the team include Christopher Ryan, who has a track record of representing government clients in ICC, UNCITRAL and ad-hoc tribunals, and Thomas Wilner, who specializes in international trade disputes.

[back to top]

International litigation

Within: International litigation

Shearman & Sterling LLP's 'impressive' client base spans multinational corporations and financial institutions on high-profile, and often cross-border matters including global investigations, Foreign Corrupt Practices Act (FCPA) matters and US-based litigation involving non-US entities. Global practice head Adam Hakki and deputy head of the litigation department Richard Schwed are both recommended for their expertise in securities class actions and banking litigation. In Washington DC, Christopher Ryan is acting for Yukos Oil Company in the enforcement of $50bn of arbitral awards from the Russian Federation after its expropriation of investments in the client. Other contacts include Henry Weisburg, who is noted for his expertise in cross-border financial disputes, and rising star Paula Anderson. All named individuals are based in New York unless otherwise stated.

[back to top]

Back to index

Legal Developments worldwide

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to