1. Jeff Bezos, $190bn

Jeff Bezos

The former fund manager who turned into online book seller in 1994 started Amazon in his garage. The Washington Post newspaper is owned by him and he has also invested in space technology.

2. Bill Gates, $120bn

Bill Gates

For the past 20 years, he has been at the top end of the rich list. He focuses on his philanthropic work and owns just 1% of the Microsoft.

3. Mark Zuckerberg, $100bn

Mark Zuckerberg

At the age of 19, he started Facebook in 2004 and now Zuckerberg is one of the top 5 richest men in the world.

4. Bernard Arnault and Family, $81.4bn

Bernard Arnault and Family

In the list, Arnault is the wealthiest European. This Frenchman sees an empire consisting of more than 60 brands including Louis Vuitton and Sephora.

5. Mukesh Ambani, $80.3bn

Mukesh Ambani

In Reliance industries, he controls 42% of stake and world’s largest oil refining complex is owned by him. More than $400m of property is also owned by him.