LAWYER PROFILE
Grant A Hanessian

Grant A Hanessian

Global 2026

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Ranked in 1 practice area

About

Provided by Hanessian ADR

Practice Areas

Grant Hanessian is an independent arbitrator in New York. Mr. Hanessian has acted as arbitrator or counsel in a wide range of international, investor-state, and complex commercial disputes arising under the laws of many countries and public international law, with particular experience in infrastructure and construction, energy, mining, pharma/life sciences, technology and intellectual property, financial services, and post-M&A disputes and other contractual matters. He has served as arbitrator or counsel in more than 200 international arbitrations under the rules of most of the world's major arbitration institutions..

Career

Prior to June 2020, Mr. Hanessian was partner at Baker McKenzie in New York, where he practiced for 33 years, and served as global co-head of firm’s International Arbitration Practice, head of International Arbitration Practice in North America and head of New York office Litigation Department. Since 2018, Mr. Hanessian has served as an Adjunct Professor of Law at Fordham Law School in New York, where he teaches the LL.M. International Arbitration Practicum and International Commercial Arbitration courses. He has also taught courses in International Investment

Treaty Law and Practice and is a frequent speaker at arbitration conferences and law schools around the world. For a full list of his teaching and presentations, please see www.hanessanadr.com.

Professional Memberships

Mr. Hanessian was US member on the ICC's International Court of Arbitration in Paris from 2015 to 2021, chair of the Arbitration Committee of the US Council for International Business (U.S. national committee of the ICC) from 2015 to 2020, and Vice President of the LCIA’s North American Users Council from 2014 to 2022. He is a member of ICSID’s Panel of Arbitrators, the AAA-ICDR international advisory and publications committees, a fellow of the College of Commercial Arbitrators and the Chartered Institute of Arbitrators, a member of the International Arbitration Club of New York, CPR Arbitration Committee, NYC Bar Committee on International Commercial Disputes, Club Español del Arbitraje, and a founding board member of the New York International Arbitration Center. In 2023 Mr. Hanessian was appointed first president of the Arbitration Council of the Arbitration and Mediation Center of Armenia.

Publications

Mr. Hanessian is co-editor of The Leading Arbitrators' Guide to International Arbitration (4th ed, 2024); ICDR Awards and Commentaries Vol. I and II (Juris Pub.) and co-editor of International Arbitration Checklists (Juris Pub., 3rd ed.), Gulf War Claims Reporter (ILI/Kluwer), Baker & McKenzie's International Litigation & Arbitration Newsletter (2010-2020) and Baker & McKenzie's International Arbitration Yearbook (2009-2019). He has written more than 50 chapters and article on arbitration topics. For a complete list of Mr. Hanessian's publications, please see www.hanessianadr.com.

Personal

Please see www.hanessianadr.com.

Chambers Review

Provided by Chambers

Chambers Global Guide

International Arbitration: Arbitrators - USA

Band 2
Band 2

Individual Editorial
Grant Hanessian of Hanessian ADR has a wealth of experience with investment treaty and commercial arbitrations, with notable expertise with matters involving Latin America, Eastern Europe and Russia.

Strengths

Provided by Chambers

  • Grant is incredibly experienced and knowledgeable in the area. He handles the proceedings gracefully, with the respect and in an efficient manner.

    International Arbitration: ArbitratorsChambers Global Guide
  • Grant is really good at managing the parties.

    International Arbitration: ArbitratorsChambers Global Guide
  • Grant has a unique and personable style that allows him to have quite a presence and control of the room, which I find quite unique.

    International Arbitration: ArbitratorsChambers Global Guide
  • Mr. Hanessian is broadly recognized as a thought leader and a leading international arbitrator.

    International Arbitration: ArbitratorsChambers Global Guide
  • Grant expertly handled arbitration drafting. He is responsive, and his ruling was fair and just.

    International Arbitration: ArbitratorsChambers Global Guide

Ranked Individuals at Hanessian ADR (1)

USA

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    Grant A Hanessian

    International Arbitration: Arbitrators

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