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These Are the Richest Billionaires Under 40

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This story originally appeared on CNBC

has created more billionaires under 40 than any other company, according to a new ranking.

catwalker | Helga Esteb | Shutterstock
Mark Zuckerber | Jan Koum | Sean Parker

In the Wealth-X list of 10 richest billionaires under 40, four made most or all of their fortune from Facebook.

tops the list with estimated wealth of $35.1 billion. His fellow Facebook co-founder and fellow 30-year-old, Dustin Moskovitz, ranked second, with $7.7 billion. And , the Web bad boy who has founded several companies but made his biggest coin from Facebook, comes in at number five with $5.2 billion.

If you add in Eduardo Saverin, another co-founder, the fresh-faced Facebookers have a combined $52 billion.

You could even argue that , the third-ranked under-40 rich guy, made his fortune in large part from Facebook, since he sold his mobile messaging platform, , to the site.

Here is the full list of the top 10 under 40:

  1. Mark Zuckerberg (age 30) — $35.1 billion
  2. Dustin Moskovitz (age 30) — $7.7 billion
  3. Jan Koum (age 38) — $7.7 billion
  4. Scott Duncan (age 32) — $5.5 billion
  5. Sean Parker (age 35) — $5.2 billion
  6. Yang Huiyan (age 34) — $5.1 billion (inherited)
  7. Alejandro Santo Domingo (age 38) — $4.9 billion (inherited)
  8. Elizabeth Holmes (age 31) — $4.5 billion
  9. Eduardo Saverin (age 32) — $4.4 billion
  10. Arun Pudur (age 38) — $4 billion

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