Henry Samueli, Broadcom Co-founder, Chairman
Samueli and his wife formed their family foundation in 1993, when semiconductor supplier Broadcom when public. The foundation focuses on science, technology, engineering and mathematics (STEM) education, integrative medicine, and promoting Jewish culture.
The University of California at Los Angeles' Daily Bruin reported that the couple has donated more than $285 million to various organizations over the past 13 years. UCLA is Samueli's alma mater.
The Samuelis signed the Giving Pledge a year ago.