The Thomas And Stacey Siebel Foundation is an independent non-profit foundation based in Redwood City, California. Established in 1996, the foundation supports projects and organizations that work to improve the quality of life, environment, and education. The foundation also supports the homeless and underprivileged, educational and research programs, public health, and energy solutions. The assets of the foundation governed by the board of directors.The Thomas And Stacey Siebel Foundation's investment portfolio is valued at over $144.31 million as of December 31, 2019, with investments in private equity and cash.