Bill Gates

Lifetime donations: $27 billion
Net worth: $84.2 billion
Generosity Index: 32%
While he is best known as the cofounder of Microsoft, Bill Gates now focuses most of his time on philanthropy, running the Bill & Melinda Gates Foundation alongside his wife.
The foundation issues grants for initiatives and programs across the globe, focusing on agricultural development, emergency relief, global libraries, urban poverty, global health, and education.
Since its inception, the foundation has donated millions to organizations that include the GAVI Alliance; the World Health Organization; The Rotary Foundation; The Global Fund to Fight AIDS, Tuberculosis, and Malaria; and UNICEF.
Source: Wealth-X