1. Jeff Bezos, Amazon founder and CEO – $112billion
2. Bill Gates, Microsoft founder – $90billion
3. Warren Buffett, Berkshire Hathaway CEO – $84billion
4. Bernard Arnault, CEO of LVMH – $72billion
5. Mark Zuckerberg, Facebook founder and CEO, $71billion
6. Amancio Ortega, Inditex co-founder, $70billion
7. Carlos Slim Helu, America Movil, $67.1billion
8. Charles Koch, Koch Industries, $60billion
9. David Koch, Koch Industries, $60billion
10. Larry Ellison, Oracle, $58.5billion
11. Michael Bloomberg, Bloomberg, $50billion
12. Larry Page, Google co-founder, $48.8billion
13. Sergey Brin, Google co-founder, $47.5billion
14. Jim Walton, son of Walmart founder Sam Walton, $46.4billion
15. S. Robson Walton, former Walmart chairman, $46.2billion
16. Alice Walton, Walmart heir and art collector, $46billion
17. Ma Huateng, CEO of Tencent Holdings, $45.3billion
18. Francoise Bettencourt Meyers, L’Oreal heiress, $42.2billion
19. Mukesh Ambani, CEO of Reliance Industries, $40.1billion
20. Jack Ma, CEO of Alibaba, $39billion
21. Sheldon Adelson, CEO of Las Vegas Sands, $38.5billion
22. Steve Ballmer, Microsoft co-founder, $38.4billion
23. Li Ka-shing, head of CK Asset Holdings, $34.9billion
24. Hui Ka Yan, CEO of China Evergrande Group of Shenzhen, $30.3billion
25. Lee Shau Kee, co-founder of Sun Hung Kai, $30.3billion