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John A. Trenor


Partner, Wilmer Cutler Pickering Hale and Dorr LLP, Adjunct Professor of Law

B.A., Cornell; M.P.A., Princeton, The Woodrow Wilson School of Public and International Affairs; J.D., University of Chicago

John A. Trenor is a partner in the Washington DC and London offices of Wilmer Cutler Pickering Hale and Dorr LLP. He has a diverse...

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John A. Trenor is a partner in the Washington DC and London offices of Wilmer Cutler Pickering Hale and Dorr LLP. He has a diverse international practice focusing on international arbitration and international litigation. Practice: Mr. Trenor has represented companies, states, state-owned entities, international organizations, and individuals in a wide variety of disputes in the IT, telecommunications, oil and gas, financial services, pharmaceuticals, aviation, defense, and other industries. He has advised clients regarding commercial, investor-state, and state-to-state arbitrations under virtually all of the major institutional as well as ad hoc rules, including ICC, LCIA, AAA, SCC, VIAC, UNCITRAL, and ICSID, and regarding international litigation in national courts in the US, Europe, and Asia. He has extensive experience in matters regarding public and private international law, including such areas as conflict of laws, extraterritoriality and jurisdiction, investment protection, state responsibility, reparations, territorial sovereignty, sovereign immunity, the law of treaties, and the law of the sea, as well as extensive experience in U.S. constitutional questions regarding foreign affairs and foreign commerce. He also advises clients on cross-border regulatory matters and is the Rapporteur of the ICC Task Force on Extraterritoriality. He has published articles and spoken on a variety of international issues. Education and Professional Qualifications: Mr. Trenor is a graduate of The University of Chicago, The Law School (1995, Juris Doctor, with honors); Princeton University, The Woodrow Wilson School of Public and International Affairs (1995, Master in Public Affairs); and Cornell University (1991, Bachelor of Arts). He is a member of the bars of the State of New York and the District of Columbia. He speaks French.

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