Isabelle Williams joined NTI in 2007 and serves as Senior Adviser to the Global Nuclear Policy Program. As part of this work she helps coordinate the international strategy of the program, managing the work of NTI’s global partners who conduct various activities in their countries and regions to promote reducing reliance on nuclear weapons, preventing their use and their spread, and ultimately ending them as a threat to the world. She has also co-authored reports on NATO nuclear policy and UK nuclear policy and helps manage the Nuclear Security Project, an initiative led by former Secretary of State George P. Shultz, former Secretary of Defense William J. Perry, former Secretary of State Henry A. Kissinger and former Senator Sam Nunn in their effort to galvanize global action to reduce urgent nuclear dangers and work towards a vision of a world free of nuclear weapons.
She came to NTI from the Partnership for Global Security, where she managed their next generation nonproliferation program and was previously a research associate at the Chemical and Biological Arms Control Institute where she focused on research relating to chemical weapons, biosecurity and bioterrorism preparedness and response. She also held successive positions at the International Institute for Strategic Studies in London. Williams holds a bachelor's degree and master's degree (Hons) in International Studies both from the University of Leeds, UK.