Amount donated in 2014: $382.8-million
Beneficiary: Brin Wojcicki Foundation
Background: Mr. Brin co-founded Google.
Sergey Brin, 41, gave $382.8-million to the Brin Wojcicki Foundation. The philanthropy directs most of its support to Ashoka, a nonprofit that brings together social entrepreneurs to work on education, the environment, and women’s issues; the Human Rights Foundation; and Tipping Point Community, which seeks to eliminate poverty in Northern California.