These are the 20 richest billionaires in tech
The world's wealthiest tech billionaires have added another $50bn to their wealth over the past year, while titans Jeff Bezos, Mark Zuckerberg and Jack Ma climbed the ranks.
Bill Gates retained his long-standing title as the world's richest tech billionaire, the latest rich list compiled by Forbes reveals, despite a $1.6bn decline in his wealth since 2015.
Read more: Meet the most influential British innovator in the world
It was a good year for Amazon boss Bezos and Facebook founder Zuckerberg, both celebrating a successful year in business which has sent both companies stock soaring to new highs over the past year. This helped them claim second and third position respectively, adding a combined $31.2bn to their wealth and overtaking Oracle founder Larry Ellison.
Read more: Mark Zuckerberg added $1.9bn to his wealth in less than 24 hours
In another reshuffle, Alibaba entrepreneur Jack Ma overtook former Microsoft chief Steve Ballmer as his wealth grew by $2.6 m.
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The greatest number of the top 20 tech billionaires – more than half – come from the US and then China. All are men while the average age is 54.
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Just a single person from the UK made Forbes' top 100 tech rich list – founder of Bet365 Denise Coates at number 53. She is also ranked second of only five women to make the list.