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Baker & McKenzie
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Combining the knowledge of local laws and cultures with a global reach is just one of the ways Baker & McKenzie separates itself from other firms. Our genuinely global perspective allows us to operate without boundaries around the world, in every jurisdiction that is important to your business.

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Grant Hanessian
Grant Hanessian
Baker & McKenzie LLP
New York

+ 1 212 891 3986
+ 1 212 310 1686

Grant Hanessian serves as co-chair of the Firm’s International Arbitration Group. He chaired the Litigation Department of the Firm’s New York office from 2003 to 2012. Mr. Hanessian is vice chairman of the Arbitration Committee of the US Council for International Business (USCIB), the US national committee of the International Chamber of Commerce (ICC), and a member of the ICC’s Commission on Arbitration and its Task Force on Arbitration Involving States or State Entities, the American Arbitration Association-International Centre for Dispute Resolution’s International Advisory Committee and Advisory Committee on Brazil, the New York State Bar Association Task Force on International Arbitration, the International Arbitration Club of New York, the Arbitration Committee of the International Institute for Conflict Prevention and Resolution, the New York City Bar Association's International Law Committee and Club Español del Arbitraje, and is a founding board member of the New York International Arbitration Center.

Mr. Hanessian is editor of ICDR Awards and Commentaries (Juris Pub. 2012) and co-editor of Comparison of International Arbitration Rules (American Bar Association Section of International Law, forthcoming 2013), International Arbitration Checklists (Juris Pub., 2nd ed., 2008), Gulf War Claims Reporter (ILI/Kluwer, 1998) and Baker & McKenzie's International Litigation & Arbitration Newsletter. Mr. Hanessian is recommended by Chambers Global and USA (described as "very experienced, hugely knowledgeable and effective" and "well respected and focused"), PLC Which lawyer?, Legal 500, The International Who’s Who of Commercial Arbitration and Expert Guide to Leading Practitioners in International Arbitration.

Practice Focus

Mr. Hanessian has more than 25 years of experience as counsel and arbitrator in disputes concerning contract, investment treaty, energy, construction, commodities, financial services, insurance, intellectual property and other matters.

Representative Legal Matters

  • Representing investors and governments in arbitrations concerning claims under bilateral and multilateral investment treaties.
  • Representing Petrobras in New York arbitrations concerning design and construction of two off-shore floating production, storage and offloading vessels and claims concerning acquisition of power plant in Brazil.
  • Representing a US subsidiary of a French company in arbitrations and domestic court actions in US concerning EPC contracts for ethanol projects.
  • Representing a Taiwanese railway company in a Singapore arbitration regarding a contract to provide trains for high-speed railway in Taiwan.
  • Representing Korean manufacturer of semiconductor equipment in New York arbitration and subsequent US bankruptcy proceedings concerning joint development and sales agreement.
  • Representing Asian government in arbitration and domestic court actions regarding contractual disputes relating to bond offering.
  • Representing Egypt in a dispute regarding workers remittances from Iraq before the United Nations Compensation Commission.
  • Represented numerous companies in claims against Iran before the Iran-US Claims Tribunal and claims against Iraq before the United Nations Compensation Commission.

Professional Associations and Memberships

  • American Society of International Law
  • American Bar Association
  • Association of the Bar of the City of New York
  • International Chamber of Commerce
  • American Arbitration Association
  • London Court of International Arbitration


New York~United States (1986)


Columbia University  (LL.M.) (1985)
New York University  (J.D.) (1980)
University of Pennsylvania  (B.A.) (1975)

Baker & McKenzie LLP is a Limited Liability Partnership organized under the laws of the State of Illinois (USA) and is a member of Baker & McKenzie International, a Verein organized under the laws of Switzerland.
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Every day our more than 4,000 lawyers, economists, tax advisors and other professionals share insights and best practices across borders and practices. We speak more than 75 languages and represent more than 55 nationalities, and the close relationships among our people fosters the trust needed to develop and deliver world-class solutions to multinational clients.

We share an uncompromising commitment to excellence, which explains why more of our lawyers are included as leading lawyers in the Chambers Global Guide to the World’s Best Lawyers than any other Global 20 law firm.

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Passionately global
We are passionately global — it's in our DNA.

We started with a vision of going global and were in eight countries before our 10th anniversary. Today we have 77 offices in 47 countries -- including the emerging markets so important to the growth of your business.
*Associated Firms
**In cooperation with Trench, Rossi and Watanabe Advogados
Other Geographic Initiatives

We service clients throughout the world and in some countries where we do not have offices, working with carefully selected local firms to leverage our global knowledge and capabilities.

 India Africa Central America 
  Central Europe   
We offer world-class career opportunities around the globe, while our entrepreneurial culture makes Baker & McKenzie a unique place to develop professionally.

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