1. Elon Musk : $222.3 billion

Elon Reeve Musk is a businessman and investor. He is the founder, chairman, CEO, and CTO of SpaceX; angel investor, CEO, product architect and former chairman of Tesla.

2.Bernard Arnault & Family : $183.7 billion

He is the founder, chairman and CEO of LVMH, the world's largest luxury goods company.

3.Jeff Bezos : $179.1 billion

Jeffrey Preston Bezos is an American businessman, media proprietor and investor. He is the founder, executive chairman, and former president and CEO of Amazon, the world's largest e-commerce and cloud computing company.

4.Larry Ellison: $143.0 billion

Lawrence Joseph Ellison is an American businessman and entrepreneur who co-founded software company Oracle Corporation.

5.Mark Zuckerberg: $137.9 billion

Mark Elliot Zuckerberg is an American businessman and philanthropist. He co-founded the social media service Facebook, along with his Harvard roommates in 2004.

6.Warren Buffett: $124.7 billion

Warren Edward Buffett is an American businessman, investor, and philanthropist who currently serves as the co-founder, chairman and CEO of Berkshire Hathaway.

7.Larry Page : $124.4 billion

Lawrence Edward Page is an American businessman, computer scientist and internet entrepreneur best known for co-founding Google with Sergey Brin.

8.Bill Gates: $121.8 billion

William Henry Gates III is an American businessman, investor, philanthropist, and writer best known for co-founding the software giant Microsoft, along with his childhood friend Paul Allen.

9.Sergey Brin : $119.2 billion

Sergey Mikhailovich Brin is an American businessman best known for co-founding Google with Larry Page. Brin was the president of Google's parent company, Alphabet Inc.

10.Steve Ballmer : $118.5 billion

Steven Anthony Ballmer is an American businessman and investor who was the chief executive officer of Microsoft from 2000 to 2014.