William Jeffrey, Ph.D., is chief executive officer of SRI International, a leading research and development organization serving government and industry. Jeffrey joined SRI in 2014. From 2008 to 2014, Jeffrey was president and CEO of HRL Laboratories, a corporate R&D organization owned by The Boeing Company and General Motors.

Prior to joining HRL, Jeffrey served in the George W. Bush Administration as director of the National Institute of Standards and Technology (NIST). Jeffrey also served in the Executive Office of the President as senior director for homeland and national security and as assistant director for space and aeronautics within the Office of Science and Technology Policy (OSTP).

Earlier in his career, Jeffrey was deputy director for the Advanced Technology Office and chief scientist for the Tactical Technology Office at the Defense Advanced Research Projects Agency (DARPA), and assistant deputy for technology at the Defense Airborne Reconnaissance Office. Jeffrey started his professional career at the Institute for Defense Analyses (IDA).

Jeffrey is an elected Fellow of the American Physical Society, an elected Honorary Member of the International Society of Automation, a recipient of the 2008 Navigator Award from the Potomac Institute for Policy Studies, and a recipient of the Secretary of Defense Medal for Outstanding Public Service.

Jeffrey serves on the board of TE Connectivity, and serves on the Office of Director of National Intelligence (ODNI) Technical Advisory Board. He is also on the Lawrence Livermore National Lab External Review Committee.

Jeffrey received his M.A. and Ph.D. in astronomy from Harvard University, and his B.Sc. in physics is from MIT.