1. Jeff Bezos (Retail, e-commerce)
2. Bernard Arnault (Luxury goods)
3. Bill Gates (Technology)
4. Warren Buffett (Investment)
5. Amancio Ortega (Retail)
6. Mark Zuckerberg (Technology)
7. Larry Ellison (Technology)
8. Carlos Slim Helu (Telecommunications)
9. Larry Page (Technology)
10. Sergey Brin (Technology)
11. Jim Walton (Retail)
12. Alice Walton (Retail)
13. S. Robson Walton (Retail)
14. Steve Ballmer (Technology)
15. Michael Bloomberg (Finance)
14. Charles Koch (Manufacturing)
15. David Koch (Manufacturing)
16. Mukesh Ambani (Oil & Gas, Telecommunications)
17. Francoise Bettencourt Meyers (Cosmetics)
18. Jack Ma (Technology)
19. Ma Huateng (Technology)
20. Wang Jianlin (Real Estate)