Mark Sandy
Senior Advisor

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An independent consultant, former Distinguished Executive in the Senior Executive Service, and Navy veteran with over 30 years of national security, intelligence, and private sector leadership experience, Mark Sandy joined TRG in December 2025. He concluded his civil service career as Deputy Associate Director for National Security at the White House Office of Management and Budget (OMB) from 2013 to 2025. Mark led resource strategies, program assessments, and legislative priorities for the Department of Defense, the Intelligence Community, the Department of Veterans Affairs, and the National Nuclear Security Administration, totaling over $1 trillion in annual appropriations and approximately 60% of the Federal discretionary budget. He also served as Acting Director of OMB from January to February 2017. Mark received OMB’s highest award, the Robert G. Damus Award, in 2021 for significant, sustained contributions to the integrity and excellence of OMB. He was also awarded the Presidential Rank of Distinguished Executive in the Senior Executive Service in 2018 for “sustained extraordinary accomplishment in management of programs of the United States Government and for leadership exemplifying the highest standards of service to the public.”
Mark simultaneously served as an Intelligence Officer in the U.S. Navy Reserve before retiring as a Commander in 2019, including eighteen months as a Military Assistant to the Deputy Secretary of Defense (2017-2019) and a nine-month mobilization to Afghanistan in 2010 as Intelligence Operations Officer-in-Charge at the NATO Training Mission.
Mark’s previous positions at OMB were in the International Affairs Division, where he led the Economics Affairs Branch. In between his years at OMB, he worked for the Millennium Challenge Corporation as a Managing Director in Administration and Finance and for U.S. Bank as a Vice President.
Mark received his B.A. in European political economy from Davidson College and a second degree from Oxford University in politics and economics as a George C. Marshall Scholar. He earned his Master’s in Public Affairs specializing in international relations at Princeton University as a Harry S. Truman Scholar. He is also a graduate of the Naval War College.