Heising-Simons Foundation

Heising-Simons Foundation
Formation2007
TypePrivate foundation
HeadquartersLos Altos, CA
Key people
Liz Simons, Mark Heising, Caitlin Heising
Disbursements$947.7 million (2007-2023)
Websitehttps://www.hsfoundation.org/

The Heising-Simons Foundation is a private foundation established by philanthropists Elizabeth (Liz) Simons and Mark Heising in Los Altos, California in 2007. Liz Simons and Mark Heising signed the Giving Pledge in 2016.

The Heising-Simons Foundation's main areas of work include early childhood education, science, climate and clean energy, community and opportunity, and human rights. It also funds a science fellowship known as the 51 Pegasi b Fellowship, and the American Mosaic Journalism Prize. It does not accept unsolicited grant proposals.

The Heising-Simons Foundation's previous President and CEOs were Sushma Raman, who joined in 2023 from the Carr Center for Human Rights Policy at Harvard University, and Deanna Gomby, who joined from the David and Lucile Packard Foundation.