Top 10 Millionaires at the age of 20

 While it is rare for individuals to become millionaires at the age of 20, there have been some notable cases where young entrepreneurs have achieved significant wealth early in their lives. Here is a list of individuals who reportedly became millionaires at or before the age of 20, along with their estimated net worth:

1. John Collison (Net Worth: $11.8 Billion)

 - Co-founder of Stripe, an online payment processing company, Collison achieved billionaire status in his early 20s.

2. Evan Spiegel (Net Worth: $10 Billion)

 - Co-founder of Snapchat, Spiegel became a billionaire in his early 20s when the company gained massive popularity.

3. Bobby Murphy (Net Worth: $10 Billion)

 - Co-founder of Snapchat alongside Evan Spiegel, Murphy became a billionaire in his early 20s.

4. Alexandra Andresen (Net Worth: $1.4 Billion)

 - At the age of 19, Andresen became the world's youngest billionaire due to her inheritance from her family's tobacco business.

5. Katharina Andresen (Net Worth: $1.4 Billion)

 - Similar to her sister Alexandra, Katharina Andresen also inherited a substantial fortune from her family's tobacco business.

6. Ludwig Theodor Braun (Net Worth: $1.4 Billion)

 - Braun inherited a substantial stake in B. Braun Melsungen, a German medical and pharmaceutical company, before the age of 20.

7. Gustav Magnar Witzøe (Net Worth: $1.3 Billion) 

- Witzøe inherited a significant stake in SalMar ASA, a Norwegian salmon farming company, at the age of 19.

8. Pedro de Godoy Bueno (Net Worth: $1.1 Billion)

 - Bueno inherited a stake in Brazilian healthcare company Amil at the age of 20.

9. Kylie Jenner (Net Worth: $900 Million)

 - While not strictly in the business realm, Kylie Jenner achieved tremendous wealth through her makeup brand, Kylie Cosmetics, by the age of 20.

10. Brian Wong (Net Worth: $20 Million)

 - Wong founded Kiip, a mobile advertising platform, and achieved notable success and wealth in his early 20s.

Please note that net worth figures can vary based on fluctuations in the individuals' wealth and other factors. Additionally, these figures are estimates and may not reflect real-time values.