Ambassador Demetrios Marantis serves as Senior Vice President, Global Government Engagement, leading Visa’s global government engagement team and is responsible for partnering with government officials around the world to advance policies that foster the growth of electronic payments.
Ambassador Marantis joined Visa from Square, where he led global policy, government, and regulatory affairs. Prior to joining Square in May 2013, Marantis served as Acting United States Trade Representative and Deputy United States Trade Representative. Marantis was nominated for his position by President Barack Obama and confirmed by the U.S. Senate on May 6, 2009. As Deputy United States Trade Representative, he was responsible for U.S. trade negotiations and enforcement in Asia and Africa, including the TransPacific Partnership (TPP), the Asia Pacific Economic Cooperation (APEC) Forum, the U.S.-China Joint Commission on Commerce and Trade (JCCT), the U.S.-India Trade Policy Forum, and Trade and Investment Framework Agreements with countries ranging from South Africa to the Philippines. He played a central role in the negotiation and congressional passage of the U.S.-Korea trade agreement and spearheaded conclusion in APEC of the first ever agreement to reduce tariffs on environmental goods.
Before the Obama Administration, Marantis served as Chief International Trade Counsel for the Senate Finance Committee. In this capacity, he advised then Finance Committee Chairman Max Baucus, as well as members and staff of the Finance Committee and Democratic Caucus, on trade and economic issues. He joined the committee in February 2005 after serving as Issues Director on the Kerry-Edwards 2004 presidential campaign. Marantis spent 2002 through 2004 in Hanoi as Chief Legal Advisor for the U.S.- Vietnam Trade Council where he provided technical assistance on international trade matters. Between 1998 and 2002, he served as Associate General Counsel in the Office of the U.S. Trade Representative where he negotiated provisions of international trade agreements and represented the United States in WTO dispute settlement proceedings. He also worked for five years in the Washington, D.C. and Brussels, Belgium offices of Akin, Gump, Strauss, Hauer & Feld.
Marantis holds a J.D. from Harvard Law School and an A.B. in Public and International Affairs from Princeton University.