The following categorization is according to the Forbes magazine.
 

  1. Bill Gates- An American business magnate, entrepreneur, investor and programmer, Bill gates is constantly on this position, since 2014. Residing in Washington, U.S. which is also his birthplace, he is married to Melinda Gates with three children.  He graduated from Lakeside School in 1973, and was a National Merit Scholar, and enrolled at Harvard College in the autumn of 1973. He is co-chair of the Bill & Melinda Gates Foundation, the world's largest private charitable foundation and a board member of Microsoft, the company he co-founded.
    • Full name- William Henry "Bill" Gates III
    • Date of Birth- October 28, 1955
    • Source of wealth – Microsoft, Self made
    • Education- Drop out, Harvard University
    • Net worth- $78.5 Billion
       
  2. Amancio Ortega- A Spanish business magnate born in Busdongo de Arbás, León, Spain, is the founder and chairman of the Inditex fashion group, best known for its chain of Zara clothing and accessories retail shops. He is the youngest of four children and got his first job as a shop hand for a local shirtmaker called Gala where he learned to make clothes by hand. He divorced his first wife Rosaila Mera who he cofounded zara with and is married to Flora Pérez Marcote. He is a father figure to three children.
    • Full name- Amancio Ortega Gaona
    • Date of birth- 28 March 1936
    • Source of wealth- Zara, self made
    • Education- Left school at the age of 14
    • Net worth- $67 Billion
       
  3. Warren Buffet- Considered to be the most successful investors in the world he is an American business magnate, investor and philanthropist. Born in Nebraska he is the second of three children. Buffett is the chairman, CEO and largest share holder of Berkshire Hathaway. He was widowed by  his first wife Susan Thompson in 2004 and remarried to Astrid Menks in 2006 and fathers three children.
    • Full name- Warren Edward Buffett
    • Date of birth-  August 30, 1930
    • Source of wealth- Berkshire Hathaway, Self Made
    • Education- Bachelor of Arts / Science, University of Nebraska Lincoln; Master of Science, Columbia University
    • Net worth- $ 60.8 billion
       
  4. Carlos Slim- A Mexican business magnate, investor, and philanthropist Carlos was born in Mexico and is the chairman and chief executive of telecommunications companies Telmex and América Móvil, Latin America's largest mobile-phone carrier. He received business lessons in his early childhood from his father Julian. He has six children from his wife Soumaya Domit.
    • Full name- Carlos Slim Helú
    • Date of birth-  January 28, 1940
    • Source of Wealth- Telecom, Self Made
    • Education- Bachelor of Arts / Science, Universidad Nacional Autonoma de Mexico
    • Net worth- $ 50 Billion
       
  5. Jeff Bezos- Changing the fate of E- commerce, he is the founder and CEO of amazon.com and an American technology entrepreneur and investor. His other business interests include aerospace and newspapers and he is also the founder and owner of privately-funded aerospace developer and manufacturer Blue Origin. Born in New Mexico, he now resides in Seattle, Washington and is married to MacKenzie Bezos with four children.
    • Full name-  Jeffrey Preston Jorgensen
    • Date of birth- January 12, 1964
    • Source of wealth- Amazon.com, Self Made
    • Education- Bachelor of Arts / Science, Princeton University
    • Net worth- $ 45.2 Billion
       
  6. Mark Zuckerberg- Born in New York, U.S. he is an American programmer, Internet entrepreneur, executive and philanthropist. Mark Zuckerberg launched launched Facebook from Harvard's dormitory rooms with his college mates. He is now the Chairman, co- founder, and chief executive officer of facebook and resides in California. He is married to Priscillia Chan and recently became a father to Maxima Chan Zuckerberg.
    • Full name- Mark Elliot Zuckerberg
    • Date of birth- May 14, 1984
    • Source Of wealth- Facebook, Self Made
    • Education- Drop Out, Harvard University
    • Net worth- $44.6 Billion
       
  7. Larry Ellison- Born in New York , U.S.A, he is an American businessman, entrepreneur, and philanthropist. He is co-founder of Oracle and served as the CEO till 2014, currently serves as executive chairman and chief technology officer of Oracle.  Ellison contracted pneumonia at the age of nine months, and was adopted by his uncle and aunt, he did not meet his biological mother again until he was 48. He is divorced 4 times with 2 children.
    • Full name- Lawrence Joseph "Larry" Ellison
    • Date of Birth- August 17, 1944
    • Source Of wealth- Oracle, Self Made
    • Education- Drop Out, University of Chicago; Drop Out, University of Illinois, Urbana-Champaign
    • Net worth- $43.6 Billion
       
  8. Michael Bloomberg- Born in Boston, U.S. he is an American business magnate, politician, and philanthropist. Bloomberg is the founder, CEO, and owner of Bloomberg L.P.,  a global financial data and media company. He began his career at the securities brokerage Salomon Brothers. Bloomberg also served as Chairman of the Board of Trustees at Johns Hopkins University and as the as the 108th Mayor of New York City. He is divorced from his wife Susan Brown and is in a relationship with Diana Taylor. He fathers 2 Children.
    • Full name- Michael "Mike" Rubens Bloomberg
    • Date of birth- February 14, 1942
    • Source of wealth- Bloomberg LP, Self Made
    • Education- Bachelor of Arts / Science, Johns Hopkins University; Master of Business Administration, Harvard Business School
    • Net worth- $40 Billion
       
  9. Charles Koch- Born and residing in Kansas, U.S. he is an American businessman, political donor and philanthropist and chairman and CEO of Koch industries. His brother David Koch serves as the Executive Vice president for the company they inherited from their father Fred C. Koch. He is married with 2 children.
    • Full name- Charles de Ganahl Koch
    • Date of birth- November 1, 1935
    • Source of wealth- diversified
    • Education- Bachelor of Arts / Science, Massachusetts Institute of Technology; Master of Science, Massachusetts Institute of Technology
    • Net worth- $39.6 billion
       
  10. David Koch- Born In Kansas, U.S. he is an American businessman, philanthropist, political activist, and chemical engineer. He joined his family business, the Koch industries in 1970. He became president of the subsidiary Koch Engineering in 1979, and became a co-owner of Koch Industries, with older brother Charles, in 1983 and now serves as the vice president of the company. He is married to Julia Flesher with three children.
    • Full name- David Hamilton Koch
    • Date of birth- May 3, 1940
    • Source of wealth-diversified
    • Education- Bachelor of Arts / Science, Massachusetts Institute of Technology; Master of Science, Massachusetts Institute of Technology
    • Net worth- $39.6 Billion