9: Bobby Murphy
Net Value: $1.9 billion
Country: US
Source of Revenue: Self-made
Occupation: Chief Technology Officer, Snap

8: Perenna Kei
Net Value: $2.8 billion
Country: Hong Kong
Source of Revenue: Inheritance
Occupation: Non-Executive Director, Logan Property Holdings

7: Hugh Grosvenor
Net Value: $12.9 billion
Country: United Kingdom
Source of Revenue: Inheritance
Occupation: Head, Grosvenor Estate

6: Frances Cobain
Net Value: $120 million
Country: US
Source of Revenue: Inheritance
Occupation: Artist, Self-Employed

5: Gustav Witzoe
Net Value: $2.5 billion
Country: Norway
Source of Revenue: Inheritance
Occupation: Shareholder, SalMar

4: Justin Bieber
Net Value: $300 million
Country: Canada
Source of Revenue: Self-made
Occupation: Singer, Scooter Braun (SB) Projects

3: Katharina Andresen
Net Value: $1.2 billion
Country: Norway
Source of Revenue: Inheritance
Occupation: Co-Owner, Ferd Group
2: Alexandra Andresen
Net Value: $1.2 billion
Country: Norway
Source of Revenue: Inheritance
Occupation: Co-Owner, Ferd Group

1: Kylie Jenner
Net Value: $850 million
Country: US
Source of Revenue: Self-Made
Occupation: CEO, Kylie Cosmetics
