Michael Dell, Dell
Net worth: $34.3 billion Foundation: Michael and Susan Dell Foundation
Dell donated $1 billion to his foundation in
May 2017 and has altogether committed more than $1.5 billion to charities, with a focus on child poverty. With his wife, Dell established the Michael and Susan Dell Foundation in 1999, which seeks to improve the lives of children living in urban poverty. He pledged $36 million in 2016 to help rebuild Houston following extensive flooding and damage caused by Hurricane Harvey. His estimated lifetime giving is worth $1.6 billion. Dell is the chairman and CEO of Dell Technologies, which was formed when Dell merged with computer storage giant EMC in 2016.