Heising-Simons Foundation

Philanthropic Fundraising ServicesCalifornia, United States51-200 Employees

The Heising-Simons Foundation is a philanthropic organization based in Los Altos, California. It partners with grantees and other organizations to advance climate and clean energy solutions, support scientific research, improve early childhood education, and promote human rights. The foundation articulates a vision in which people can live safe, dignified lives; all children have opportunities to thrive; the U.S. physics and astronomy communities are more inclusive and robust; and energy is clean, affordable, safe, and reliable for all. It operates as a mid-sized foundation focused on long-term social impact.

In a recent development, the board announced the appointment of Brian Eule as President and Chief Executive Officer, effective January 1, 2026. The foundation's work centers on partnerships and initiatives across climate, science, education, and human rights to advance its mission.

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