8) Russ Weiner (Net worth: $2.1 billion)

American businessman and political fundraiser Russ Weiner is the founder of Rockstar energy drink. This drink is available in more than 20 flavors in more than 30 nations worldwide. Weiner co-founded Paul Revere Society along with his father. He donated $25,000 to the California gubernatorial campaign of Gavin Newsom in 2009.

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7) Douglas Leone (Net worth: $2.2 billion)

This 57-year-old self-made billionaire is the managing partner of American venture capital company Sequoia Capital. The company enjoyed the benefits of investing in successful ventures like Google, YouTube and LinkedIn. Sequoia Capital works with founders at the early stages of the company’s creation.