He is the founder and chairman of several companies, including BEN, Cascade Investment, TerraPower, Gates Ventures, and Breakthrough Energy. He has donated to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation, reported to be the world's largest private charity. Through the foundation, he led an early 21st century vaccination campaign that significantly contributed to the eradication of the wild poliovirus in Africa. In 2010, Gates and Warren Buffett founded the Giving Pledge, whereby they and other billionaires pledge to give at least half of their wealth towards philanthropy.
He is the founder and chairman of several companies, including BEN, Cascade Investment, TerraPower Gates Ventures, and Breakthrough Energy He has donated to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation reported. to be the world's largest private charity. Through the foundation he led an early 21st century vaccination campaign that significantly contributed to the eradication of the wild poliovirus in Africa. In 2010, Gates and Warren Buffett founded the Giving Pledge, whereby they and other billionaires pledge to give at least half of their wealth towards philanthropy.