Rebecca Keiser
Chief of Research Security Strategy and Policy (CRSSP)
National Science Foundation [NSF]
Dr. Rebecca Spyke Keiser is the Acting Chief of Staff and Chief of Research Security Strategy and Policy (CRSSP) at the National Science Foundation (NSF).
Keiser assumed the Acting Chief of Staff role in April 2025. She is also the first CRSSP, a position established in March 2020 to ensure the security of federally funded research while maintaining open international collaboration. In this role, Keiser provides the NSF director with policy advice on all aspects of research security strategy. She also leads NSF’s efforts to develop and implement efforts to improve research security and the agency’s coordination with other federal agencies and the White House.
Until March 2020, Keiser was the head of the Office of International Science & Engineering (OISE) at NSF. Keiser had served as head of OISE since coming to NSF in 2015.
