Bill Gates is co-chair of the Bill & Melinda Gates Foundation and founder of Breakthrough Energy. Bill co-founded Microsoft in 1975 with Paul Allen and led the company to become the worldwide leader in business and personal software and services. In 2008, Bill transitioned to focus full-time on directing the foundation’s work and developing strategies to expand opportunity for the world’s most disadvantaged people.

 At Breakthrough Energy, he’s putting his experience as an innovator and problem-solver to work to address climate change by supporting the next generation of entrepreneurs, big thinkers, and clean technologies.

In 2010, Bill, Melinda French Gates, and Warren Buffett founded the Giving Pledge, an effort to encourage the wealthiest families and individuals to publicly commit more than half of their wealth to philanthropic causes and charitable organizations during their lifetime or in their will.

Through his private office, Gates Ventures, he pursues his work in climate change and clean energy innovation, Alzheimer’s research and other healthcare issues, interdisciplinary education, and technology.