1. Carlos Slim Helu & family
Net Worth: $73 billion
Source of wealth: Telecom
Country: Mexico
2. Bill Gates
Net worth: 67 billion
Source of wealth: Microsoft, investments
Country: United States
3. Amancio Ortega
Net worth: 57 billion
Source of wealth: Zara
Country: Spain
4. Warren Buffett
Net Worth: 53.5 billion
Source of wealth: Berkshire Hathaway
Country: United States
5. Larry Ellison
Net worth: $43 billion
Source of wealth: Oracle
Country: United States
6. Charles Koch
Net worth: $34 billion
Source of wealth: diversified
Country: United States
6. David Koch
Net worth: $34 billion
Source of wealth: diversified
Country: United States
8. Li Ka-shing
Net worth: $31 billion
Source of wealth: diversified
Country: Hong Kong
9. Liliane Bettencourt
Net worth: $30 billion
Source of Wealth L’Oreal
Country: France
10. Bernard Arnault
Net worth: $29 billion
Source of wealth: LVMH
Country: France
11. Christy Walton & family
Net worth: $28.2 billion
Source of wealth: Wal-Mart
Country: United States
12. Stefan Persson
Net worth: $28 billion
Source of wealth: H&M
Country: Sweden
13. Michael Bloomberg
Net worth: $27 billion
Source of wealth: Bloomberg LP
Country: United States
14. Jim Walton
Net worth: $26.7 billion
Source of wealth: Wal-Mart
Country: United States
15., Sheldon Adelson
Net worth: $26.5 billion
Source of wealth: casinos
Country: United States
16. Alice Walton
Net worth: $26.3 billion
Source of wealth: Wal-Mart
Country: United States
17. S. Robson Walton
Net worth: $26.1 billion
Source of wealth: Wal-Mart
Country: United States
18. Karl Albrecht
Net worth: $6 billion
Source of wealth: Aldi
Country: Germany
19. Jeff Bezos
Net worth: $25.2 billion
Source of wealth: Amazon.com
Country: United States
20. Larry Page
Net worth: $23 billion
Source of wealth: Google
Country: United States
21. Sergey Brin billion
Net worth: $22.8
Source of wealth: Google
Country: United States
22. Mukesh Ambani
Net worth: $21.5 billion
Source of wealth: petrochemicals, oil & gas
Country: India
23. Michele Ferrero & family
Net worth: $20.4 billion
Source of wealth: chocolates
Country: Italy
24. Lee Shau Kee
Net worth: $20.3 billion
Source of wealth: diversified
Country: Hong Kong
24. David Thomson & family
Net worth: $20.3 billion
Source of wealth: media
Country: Canada
26. Carl Icahn
Net worth: $20 billion
Source of wealth: leveraged buyouts
Country: United States
26.Thomas & Raymond Kwok & family
Net worth: $20 billion
Source of wealth: real estate
Country: Hong Kong
28. Prince Alwaleed Bin Talal Alsaud
Net worth: $19.6 billion
Source of wealth: investments
Country: Saudi Arabia
29.Dieter Schwarz
Net worth: $19.5 billion
Source of wealth: Returnee, retail
Country: Germany
30. George Soros
Net worth: $19.2 billion
Source of wealth: hedge funds
Country: United States
31. Theo Jr. & family Albrecht
Net worth: $18.9 billion
Source of wealth: Aldi, Trader Joe’s
Country: Germany
32. Alberto Bailleres Gonzalez & family
Net worth: $18.2 billion
Source of wealth: mining
Country: Mexico
33. Jorge Paulo Lemann
Net worth: $17.8 billion
Source of wealth: beer
Country: Brazil
34. Alisher Usmanov
Net worth: $17.6 billion
Source of wealth: steel, telecom, investments
Country: Russia
35. Iris Fontbona & family
Net worth: $17.4 billion
Source of wealth: mining
Country: Chile
36. Forrest Mars Jr
Net worth: $17 billion
Source of wealth: candy
Country: United States
36. Jacqueline Mars
Net worth: $7 billion
Source of wealth: candy
Country: United States
36. John Mars
Net worth: $17 billion
Source of wealth: candy
Country:United States
36. Georgina Rinehart
Net worth: $17 billion
Source of wealth: Mining
Country: Australia
40. German Larrea Mota Velasco & family
Net worth: $16.7 billionaire
Source of wealth: mining
Country: Mexico
41. Mikhail Fridman
Net worth: $16.5 billion
Source of wealth: oil, banking, telecom
Country: Russia
41. Lakshmi Mittal
Net worth: $16.5 billion
Source of wealth: steel
Country: India
43. Aliko Dangote
Net worth: $16.1 billion
Source of wealth: cement, sugar, flour
Country: Nigeria
44. Len Blavatnik
Net worth: $16 billion
Source of wealth: diversified
Country: United States
44. Cheng Yu-tung
Net worth: $16 billion
Source of wealth: diversified
Country: Hong Kong
46. Joseph Safra
Net worth: $15.9 billion
Source of wealth: banking
Country: Brazil
47. Rinat Akhmetov
Net worth: $15.4 billion
Source of wealth: steel, coal
Country: Ukraine
48. Leonid Mikhelson
Net worth: $15.4 billion
Source of wealth: gas, chemicals
Country: Russia
49. Michael Dell
Net worth: $15.3 billion
Source of wealth: Dell
Country: United States
50. Leonardo Del Vecchio
Net worth: $15.3 billion
Source of wealth: eyeglasses
Country: Italy