World's Top 10 Young Billionaires

Mark Zuckerberg
Age: 31
Company: Facebook
Estimated net worth: $46.1 billion

Dustin Moskovitz
Age: 31
Company: Asana
Estimated net worth: $9.3 billion
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Yang Huiyan
Age: 34
Company: Country Garden Holdings
Estimated net worth: $5.9 billion

Eduardo Saverin
Age: 33
Company: 99
Net worth: $5.3 billion

Scott Duncan
Age: 32
Company: Enterprise Product Partners
Estimated net worth: $5 billion

Elizabeth Holmes
Age: 31
Company: Theranos
Estimated net worth: $4.5 billion

Nathan Blecharczyk
Age: 32
Company: Airbnb
Estimated net worth: $3 billion

Brian Chesky
Age: 33
Company: Airbnb
Estimated net worth: $3 billion

Joe Gebbia
Age: 33
Company: Airbnb
Estimated net worth: $3 billion

Thomas Persson 
Age: 30
Company: Hennes & Mauritz (H&M)
Estimated net worth: $2.7 billion