#5. Gordon Moore: $6.8 Billion (current total Net Worth $4.6 billion)
Gordon Moore made his fortune as a co-founder and chairman of the Intel Corporation, and is famous as the author of ‘Moore’s Law’, which is typically called upon to explain the big steps in computing capability over the past several decades.
Through the Gordon and Betty Moore Foundation, Moore and his wife have directed nearly $7 billion towards higher education, environmental conservation, nursing education, and the construction of the Thirty Meter Telescope in Hawaii, the largest optical telescope in the world. Source