Source: Courtesy of DJI
5. Frank Wang
> Net worth: $5.4 billion
> Age: 38
> Company: DJI
> Citizenship: China
24/7 Wall St.
Source: Jason Kempin / Getty Images for Common Sense Media
4. Eduardo Saverin
> Net worth: $9.9 billion
> Age: 36
> Company: Facebook
> Citizenship: Brazil
Source: Araya Diaz / Getty Images
3. Dustin Moskovitz
> Net worth: $11.3 billion
> Age: 34
> Company: Facebook
> Citizenship: United States
Source: Courtesy of Zhang Yiming via Facebook
2. Zhang Yiming
> Net worth: $16.2 billion
> Age: 35
> Company: Beijing ByteDance
> Citizenship: China
Source: David Ramos / Getty Images
1. Mark Zuckerberg
> Net worth: $63.4 billion
> Age: 34
> Company: Facebook
> Citizenship: United States
