A definitive list of the 12 richest tech billionaires in the world, who have a collective net worth of more than $990 billion

GettyAmazon CEO Jeff Bezos.


12. Michael Dell

REUTERS/Brendan McDermidMichael Dell.

Net worth:
$US36.8 billion

Age:55

Source of wealth: Self-made; Dell

Net worth year-over-year change: Up by $US5.96 billion in the last year.


11. Ma Huateng

Bobby Yip/Reuters

Net worth:
$US52.9 billion

Age:48

Source of wealth: Self-made; Tencent Holdings

Net worth year-over-year change: Up by $US14.3 billion in the last year.


10. Jack Ma

Ruben Sprich/Reuters

Net worth:
$US57.1 billion

Age:56

Source of wealth: Self-made; Ali Baba

Net worth year-over-year change: Up by $US10.4 billion in the last year.


9. Mackenzie Scott

Jörg Carstensen/picture alliance via Getty Images

Net worth:
$US57.8 billion

Age:50

Source of wealth: Self-made; Amazon

Net worth year-over-year change: Up by $US20.7 billion in the last year.


8. Sergey Brin

Justin Sullivan/Getty Images

Net worth:
$US69.2 billion

Age:47

Source of wealth: Self-made; Google

Net worth year-over-year change: Up by $US6.55 billion in the last year.


7. Larry Ellison

Kimberly White/Getty Images

Net worth:
$US70.8 billion

Age:76

Source of wealth: Self-made; Oracle

Net worth year-over-year change: Up by $US12 billion in the last year.


6. Larry Page

Andrew Kelly/Reuters

Net worth:
$US71.4 billion

Age: 47

Source of wealth: Self-made; Google

Net worth year-over-year change: Up by $US6.82 billion in the last year.

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5. Steve Ballmer

AP/Evan Vucci

Net worth:
$US73.3 billion

Age:64

Source of wealth: Self-made; Microsoft

Net worth year-over-year change: Up by $US15.2 billion in the last year.


4. Mark Zuckerberg

Drew Angerer/Getty Images

Net worth:
$US96.7 billion

Age:36

Source of wealth: Self-made; Facebook

Net worth year-over-year change: Up by $US18.3 billion in the last year.


3. Elon Musk

REUTERS/Aly Song/File Photo

Net worth:
$US103 million

Age:49

Source of wealth: Self-made; Tesla

Net worth year-over-year change: Up by $US75.1 billion in the last year.


2. Bill Gates

John Lamparski/Getty Images

Net worth:
$US123 billion

Age:64

Source of wealth: Self-made; Cash, Microsoft

Net worth year-over-year change: Up by $US9.76 billion in the last year.


1. Jeff Bezos

REUTERS/Joshua Roberts

Net worth:
$US178 billion

Age:56

Source of wealth: Self-made; Amazon

Net worth year-over-year change: Up by $US63.4 billion in the last year.

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