6. LUDWIG THEODOR BRAUN
Age: 27
Net Worth $1.1 billion
Source of wealth: Medical technology
7. PATRICK COLLISON
Age: 28
Net Worth $4 billion
Source of wealth: Stripe
8. BOBBY MURPHY
Age: 28
Net Worth $4 billion
Source of wealth: Snapchat
9. WANG HAN
Age: 29
Net Worth $1.3 billion
Source of wealth: Airline
10. TOM PERSSON
Age: 32
Net Worth $2.1 billion
Source of wealth: H&M