2014-15: Dr. Bulent Atalay - professor emeritus of physics at the University of Mary Washington, adjunct professor at the University of Virginia, and a member of the Institute for Advanced Study at Princeton
2018-2019: Professor Bassam Z. Shakhashiri - professor of chemistry at the University of Wisconsin-Madison
2021-2022: Dr. Robert Musil - president and CEO of the Rachel Carson Council
2023: Eric Mazur - Balkanski Professor of Physics and Applied Physics and Chair of Applied Physics at Harvard University