15. Shiv Nadar is the cofounder of the HCL Group.
Global rank: 66
Net worth: $14.8 billion
Age: 69
Source of wealth: information technology
Source: Forbes
14. Robin Li is the founder and CEO of Baidu.
Global rank: 62
Net worth: $15.3 billion
Age: 46
Source: internet search
Source: Forbes
13. Ma Huateng is the chairman and CEO of Tencent.
Global rank: 56
Net worth: $16.1 billion
Age: 43
Source: internet media
Source: Forbes
12. Paul Allen is the cofounder of Microsoft.
Global rank: 51
Net worth: $17.5 billion
Age: 62
Source: Microsoft
Source: Forbes
11. Azim Premji is the chairman of Wipro Limited.
Global rank: 48
Net worth: $19.1 billion
Age: 69
Source: software
Source: Forbes
10. Michael Dell is the chairman and CEO of Dell.
Global rank: 47
Net worth: $19.2 billion
Age: 50
Source: Dell
Source: Forbes
9. Laurene Powell Jobs is the founder and chair of the Emerson Collective and the widow of the late Apple cofounder Steve Jobs.
Global rank: 45
Net worth: $19.5 billion
Age: 51
Source: Apple, Disney
Source: Forbes
8. Steve Ballmer is the former CEO of Microsoft.
Global rank: 35
Net worth: $21.5 billion
Age: 58
Source: Microsoft
Source: Forbes
7. Jack Ma is the founder and chairman of Alibaba.
Global rank: 33
Net worth: $22.7 billion
Age: 50
Source: e-commerce
Source: Forbes
6. Sergey Brin is the cofounder and director of special projects at Google.
Global rank: 20
Net worth: $29.2 billion
Age: 41
Source: Google
Source: Forbes
5. Larry Page is the cofounder and CEO of Google.
Global rank: 19
Net worth: $29.7 billion
Age: 41
Source: Google
Source: Forbes
4. Mark Zuckerberg is the founder and CEO of Facebook.
Global rank: 16
Net worth: $33.4 billion
Age: 30
Source: Facebook
Source: Forbes
3. Jeff Bezos is the founder and CEO of Amazon.
Global rank: 15
Net worth: $34.8 billion
Age: 51
Source: Amazon
Source: Forbes
2. Larry Ellison is the cofounder and former CEO of Oracle.
Global rank: 5
Net worth: $54.3 billion
Age: 70
Source: Oracle
Source: Forbes
1. Bill Gates is the cofounder of Microsoft and the richest person in the world.
Global rank: 1
Net worth: $79.2 billion
Age: 59
Source: Microsoft
Source: Forbes
Now tour one of their homes.
