The Heising-Simons Foundation is a family foundation based in Los Altos and San Francisco, California. The Foundation and the Heising-Simons Action Fund, its affiliated 501(c)(4) organization, work with its many partners to advance sustainable solutions in climate and clean energy, enable groundbreaking research in science, enhance the education of our youngest learners, and support human rights for all people.
The Foundation’s grantmaking is guided by the values of humility, courage, justice, opportunity, sustainability, innovation, relationships, and integrity. Since its first grant in 2008, the Foundation has awarded more than $1 billion across over 3,800 grants.