In Pictures: Musk, Buffett, Ambani - Top 10 billionaires on Forbes' latest list

#1 | Elon Musk | Net Worth: $219b | Automotive | Musk is the CEO of Tesla, the world's most valuable carmaker. The Austin, Texas-based company sells electric vehicles and home solar batteries. Musk's also the CEO of SpaceX, a rocket manufacturer tapped by NASA to resupply the space station, and has a 9.2 per cent stake in social networking company Twitter.

#2 | Jeff Bezos | Net Worth: $171b | Technology | Bezos is the founder of Amazon, the world's biggest online retailer. The Seattle-based company sells electronics, household goods and other products through its flagship website. It also controls the Whole Foods grocery chain and offers cloud computing and streaming services. Amazon had revenue of $386 billion in 2020. He stepped down as CEO to become executive chairman in July 2021.

#3 | Bernard Arnault & family | Net Worth: $158b | Fashion and retail | France's richest person is the chairman of LVMH Moet Hennessy Louis Vuitton, the world's largest maker of luxury goods. He controls about half of LVMH, which had revenue of 44.6 billion euros ($51 billion) in 2020. It sells products including Louis Vuitton leather goods, TAG Heuer watches and Dom Perignon champagne.

#4 | Bill Gates | Net Worth: $129b | Technology | Gates co-founded Microsoft, the world's biggest software maker. The Redmond, Washington-based company had revenue of $168 billion in 2021. The rest of his fortune is managed through closely held Cascade Investment, which has stakes in dozens of publicly traded companies, including Canadian National Railway, Deere and Ecolab.

#5 | Warren Buffett | Net Worth: $118b | Finance and investments | Buffett is the chairman and largest shareholder of Berkshire Hathaway, the investment group that's delivered a 20 per cent compounded annual gain in market value since 1965. The Omaha, Nebraska-based company owns Geico, Clayton Homes and Dairy Queen, and has stakes in Coca-Cola and American Express.

#6 | Larry Page | Net Worth: $111b | Technology | Page is a co-founder of Alphabet, the holding company for Google, the world's largest search engine operator. The Mountain View, California-based company was set-up in 1998. He stepped down as CEO of Alphabet, the parent of Google, in December 2019 but remains a board member and a controlling shareholder.

#7 | Sergey Brin | Net Worth: $107b | Technology | Brin is a co-founder of Alphabet. He stepped down as president of Alphabet, parent company of Google, in December 2019 but remains a controller shareholder and a board member.

#8 | Larry Ellison | Net Worth: $106b | Technology | Ellison is the founder and largest shareholder of Oracle, a database company that had revenue of more than $40 billion in the year to May 31, 2021. He owns more than 40 per cent of the Austin, Texas-based company as well as a stake in Tesla, a sailing team, the Indian Wells tennis event and real estate, including Hawaii's Lanai island.

#9 | Steve Ballmer | Net Worth: $91.4b | Technology | Ballmer is the former CEO of Microsoft, the world’s biggest software maker. He stepped down in 2014 and remains a shareholder in the company. Ballmer also owns the LA Clippers basketball team.

#10 | Mukesh Ambani | Net Worth: $90.7b | Diversified | Ambani controls Reliance Industries, owner of the world's largest oil refining complex. The Mumbai-based conglomerate's other businesses include a 4G wireless network across India. The billionaire also owns a residential property worth more than $400 million and the Mumbai Indians professional cricket team.