International Arbitration

Our clients’ business interests span the globe and so do their disputes. We go with them. Today, international arbitration is the primary formal mechanism for resolving cross-border disputes; and Cozen O’Connor’s international arbitration lawyers are experienced at handling, and winning, those arbitrations.

Our team assists with every stage of the process. We advise on the crafting of dispute resolution clauses and help clients make wise preemptive decisions about the procedure, forum and language for potential arbitrations. When conflicts do occur, we advocate for clients in front of both international commercial and investor-state arbitral tribunals. We have appeared in front of tribunals constituted under the arbitration rules of the American Arbitration Association/International Centre for Dispute Resolution (AAA/ICDR), the International Chamber of Commerce (ICC), the London Court of International Arbitration (LCIA), the United Nations Commission on International Trade Law (UNCITRAL), the International Centre for the Settlement of Investment Disputes (ICSID), the German Institution of Arbitration (DIS), the Vienna International Arbitral Centre (VIAC), and other forums. We are actively involved in the enforcement and collection of awards achieved at arbitration. And our lawyers have served as arbitrators themselves, evidence of their high standing within the international arbitration community.

Cozen O’Connor’s team has arbitrated throughout the United States, Europe, South America and Asia, and we have handled matters with interested parties in the Middle East, Africa and Australia as well. Our attorneys serve clients in a range of business sectors, including energy (oil, gas and electricity), construction and mechanical engineering, finance, transportation and logistics, insurance, international investment, chemicals, technology, and mining. Clients come to us with their most complex and high-stakes matters; we have won awards worth more than US $100 million and achieved victory in disputes that implicated core principles and practices of international business operation.

The international arbitration practice group can assist with cross-border disputes that arise inside or outside the United States. Cozen O’Connor’s international arbitration attorneys are fluent in several languages, are qualified to practice in a variety of European nations as well as in the United States, and have taught law in Europe, Russia and Asia. Our familiarity with foreign languages and cultures enhances our ability to sort through multi-party and multi-jurisdictional conflicts as well as advise clients about how to internationalize their businesses with a proactive dispute resolution management strategy.



  • Represent foreign and domestic clients in international business disputes under institutional arbitration rules and in front of ad hoc tribunals
  • Draft complex contract arbitration clauses
  • Advise clients on dispute resolution management as part of internationalizing a business
  • Serve as designated arbitrators




Anti-suit Injunctions and Anti-arbitration Injunctions in the US Enjoining Foreign Proceedings [Practical Law Litigation]

July 17, 2014

Martin Gusy and Matthew Weldon, members of Cozen O’Connor’s International Arbitration Practice Group, authored a Thomson Reuters Practical Law practice note that examines the legal and procedural requirements counsel must consider when seeking to enjoin international litigation or arbitration.

The International Comparative Legal Guide to: Litigation & Dispute Resolution 2014 (7th Edition)

April 30, 2014

Martin Gusy and Matthew Weldon, members of Cozen O’Connor’s International Arbitration Practice Group, authored the New York chapter of the 7th edition of “The International Comparative Legal Guide to: Litigation & Dispute Resolution 2014,” published by Global Legal Group Ltd, London ( The Guide provides corporate counsel and international practitioners with a comprehensive overview of litigation and alternative dispute resolution practices across the globe.

Supreme Court Considers Deference to Other Judicial Proceedings [The Legal Intelligencer]

January 02, 2014

In two cases this term, the U.S. Supreme Court will decide the extent to which federal courts should defer to the decisions of other tribunals. Its decisions will have a substantial effect on the role of the federal courts in relation to state proceedings and in reviewing the decisions of international arbitration panels.

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Cozen O’Connor Recognized As a Best Law Firm in 24 Practice Areas Nationwide, 106 Practice Areas Regionally

November 05, 2019

The U.S. News – Best Lawyers “Best Law Firms” rankings are based on a rigorous evaluation process that includes the collection of client and lawyer evaluations and peer review from leading attorneys in their field.

Cozen O’Connor Names Seven New Shareholders

July 29, 2016

Cozen O’Connor promoted seven members to shareholder of the firm: David Barron (Houston), Melissa Brill (New York), Bryan Campbell (Seattle), W. Blake Coblentz (Washington, D.C.), Martin Gusy (New York), James Schultz (Philadelphia) and Matthew Weinstein (Philadelphia).


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