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Thomas DiNanno

Mr. Thomas DiNanno was appointed by President Trump October 1, 2018, as Deputy Assistant Secretary of State for Defense Policy, Emerging Threats, and Outreach in the Arms Control, Verification and Compliance Bureau. In this role he oversees the implementation and oversight of missile defense and space policy in support of U.S. national security policies and objectives; promotes and implements bilateral and multilateral arms control transparency and confidence building measures with key allies and international stakeholders; and manages the Bureau’s strategic planning and outreach activities.  On June 8, 2019 he assumed responsibilities as the Senior Bureau Official.

Previously, Mr. DiNanno was Assistant Administrator at the Department of Homeland Security’s Federal Emergency Management Agency where he oversaw nearly $5 billion in counter-terrorism programs and national preparedness initiatives that focused on resilient public safety communications systems, national continuity planning, and cyber-security initiatives.

Mr. DiNanno served as Senior Fellow for Homeland Security and Critical Infrastructure Protection at the International Assessment and Strategy Center from 2008-2017. From 2004-2007, Mr. DiNanno served as Deputy Assistant Secretary for Critical Infrastructure Protection at the U.S. Department of Homeland Security where he was responsible for Homeland Security initiatives to identify and protect the nation’s critical infrastructure and implementing several Executive Orders and legislative initiatives.

He also represented the United States in bilateral initiatives involving cooperation between the private sector and government counter-terrorism initiatives both in Latin America, Canada and in Europe. He was also involved in the development and execution of Operation Liberty Shield – the national mobilization of Homeland Security and Public Safety resources in the lead-up to Operation Iraqi Freedom in 2004.

Mr. DiNanno served in the White House Office of Homeland Security as Director of Corporate Relations from November 2001 to March 2003, under Governor Tom Ridge. Mr. DiNanno also served as Senior Advisor and Acting Chief of Staff at the U.S. Small Business Administration from February 2001 to October 2001.

Mr. DiNanno received his MS in Business and Urban Planning from Massachusetts Institute of Technology in 1999, an MA in Government Administration from the University of Pennsylvania, and a certificate in International Relations from the Fletcher School of Law & Diplomacy in 1993. He received the BA in Economics and Latin American Studies from Middlebury College in 1989.


U.S. Department of State

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