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Matthew J. Weldon

Matthew Weldon is a partner in the firm's New York office and is the Practice Group Coordinator of the firm's International Arbitration group in the Americas. He focuses his practice on international commercial and treaty arbitration, complex international commercial litigation, and public international law.

With nearly fifteen years of experience, Matthew has argued before arbitration tribunals sitting around the world, as well federal and state courts throughout the United States. He has been lead counsel in over thirty litigations, mediations and arbitrations, and has deep expertise representing both sovereigns and multinational companies. He has experience with all of the major international arbitration rules, including those of the ICC, AAA, ICDR, HKIAC, SIAC, LCIA, ICSID and UNCITRAL.

Matthew is consistently recognized in his field, and is a thought leader in the area. He is an advisory board member of the Institute for Transnational Arbitration and a member of the Board of Directors of the New York International Arbitration Center. He is actively involved as a speaker and author, and his work has been regularly been featured in Global Arbitration Review, Investment Arbitration Reporter, Mealey's International Arbitration Report, and Law360.

Matthew's experience spans a wide variety of sectors, including construction, foreign investment, mining, oil and gas, renewables, life sciences, manufacturing and distribution, finance, real estate, technology, and transportation.

Prior to joining the firm, Matthew was a partner in the New York office of a large U.S. law firm. In 2009, he was a visiting researcher at Oxford University, Centre for Socio-Legal Studies, focusing on comparative legal studies and international arbitration.

  • Editorial Board, ITA in Review - f/k/a World Arbitration and Mediation Review (2015-2021)
  • Global Advisory Board (GAB) of the ICDR’s Young & International group (2017-2019)
  • Advisory Board, Institute for Transnational Arbitration
  • Board of Directors, New York International Arbitration Center (NYIAC)
  • Advisory Board, Lex:lead
  • Union Internationale des Avocats, Investor-State Disputes Arising from the Pandemic Webinar (2021)
  • International Institute for Conflict Prevention & Resolution, India Supplement to the CRP Corporate Counsel Manual for Cross Border Dispute Resolution, New York (2019)
  • How to Know and Understand Arbitrators from Chinese, Asian and Global Perspectives - CYAG / ICDR Y&I, Beijing (2017)
  • ICDR Y&I Roundtable @ FDI Moot Regional Rounds, Seoul (2017)
  • ICDR & ICDR Y&I Tertulia: Deliberating the Deliberations - The ICDR Miami International Arbitration Conference (2016)
  • Oil & Gas Arbitration: A Primer on Dispute Resolution Clauses for Transactional Lawyers - ICDR / AIPN Dispute Resolution Conference, Calgary (2014)
Additional Thought Leadership Pages
  • How To Prep For Investor-State Disputes Related To COVID-19 [Law360]
  • Corporate Counsel Manuel for Cross-Border Dispute Resolution in India [CPR 2019]
  • Using Anti-Suit Injunction to Enforce Arbitration Agreements [Law360]
  • China’s Belt & Road Initiative: A Conversation with Dr Gabriel Lentner on Investment Protection
  • Suit Injunctions and Anti-Arbitration Injunctions in the US Enjoining Foreign Proceedings [Practical Law]
  • The Year in Review (2015) [ABA Section of International Law and Practice]
  • The International Comparative Legal Guide to: Litigation & Dispute Resolution 2014 (7th Edition)
  • The Year in Review 2013 - An Annual Survey of International Legal Developments [ABA]
Additional News & Event Pages
  • Mentioned, "Romania Seeks Relief From Award After CJEU Ruling As It Appeals Sanctions," Mealey's Litigation Procedure, 1 April 2022
  • Mentioned, "Spain fails to annul largest renewables award," Global Arbitration Review, 28 March 2022
  • Mentioned, "Romania Requests Interpretation of 2013 Micula Award in Light of Ongoing US Enforcement Proceedings," Investment Arbitration Reporter, 7 March 2022
  • Mentioned, "Panama faces billion-dollar claim over mining project," Global Arbitration Review, 6 October 2021
  • Mentioned, "Law360 Names Attys Who Moved Up The Firm Ranks In Q2," Law360, 18 August 2021
  • Mentioned, "Romania Says It Already Paid Swedish Food Investors' Award," Appellate Law360, Food & Beverage Law360, and International Arbitration Law360, 19 May 2021
  • Mentioned, "Court Erred By Ruling Payment In Romania Didn't Satisfy Award, D.C. Circuit Told," Mealey's Litigation Procedure, 18 May 2021
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