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John Rendeiro

Senior Security Advisor


United States

John Rendeiro joined International SOS in 2006 as Vice President, Global Security and Intelligence, and transitioned to his current role as Senior Advisor in 2019. Prior to joining International SOS, he was Assistant Director for International Programs of the Diplomatic Security Service, U.S. Department of State.  In this capacity, he was responsible for protecting the Department's international facilities and personnel from the threats of terrorism, espionage and crime.

As a Special Agent of the Diplomatic Security Service from 1985-2006, John served in various operational, protective and investigative positions.  His service in Washington, D.C., included duty as Director of Intelligence and Threat Analysis, Director of Anti-Terrorism Assistance, and Chief of the Office of Professional Responsibility.  Overseas, he served as Regional Security Officer in Russia and Switzerland, and also served in Afghanistan, Cuba, Haiti, Hungary, Liberia and Somalia, among other assignments.  
During his tenure at International SOS, John has represented the company to various professional organisations, has served as a senior liaison to security clients, and has worked closely with our operational/sales/marketing teams on security issues. John is a recipient of the Secretary of State's Career Achievement Award and multiple Senior Foreign Service Performance awards.  In 2006, he retired at the grade of Minister-Counselor, Senior Foreign Service.

Before his assignment with the State Department, John served as a military intelligence officer in the U.S. Army.  He holds a B.A. in Modern Languages from Widener University, Chester, Pa.; an M.A. in Spanish Language and Literature from Temple University, Philadelphia; an M.B.A from Southern Illinois University, Edwardsville, Ill.; and is a graduate of the U.S. Foreign Service Institute School of Russian Studies, and the U.S. Army War College, Carlisle, Pa.

John is a Life Member of ISMA; serves as the International SOS OSAC Council Member, DSAC representative, and Energy Security Council representative; is a member of the American Foreign Service Association; and served for five years as a member of the Editorial Board of the Foreign Service Journal.