The Top Ten Richest Men in the world (as of writing). This list could change in an instant based on the market movement and company status. Take a look at the list and see how these people amassed their current net worth. Some of them obtained their wealth through inheritance but most of the people on this list is a self-made billionaire.

10. David Koch
photo: Alchetron

Executive Vice President, Koch Industries
Net Worth: $39.6 Billion

Age: 76
Source Of Wealth: Diversified
Residence: New York, NY
Citizenship: United States
Marital Status: Married
Children: 3
Education: Bachelor of Arts / Science, Massachusetts Institute of Technology; Master of Science, Massachusetts Institute of Technology

David Koch shares control of Koch Industries with his brother Charles, the second largest private company in the U.S. Their family business started in 1940 where they refine heavy oil into gasoline. David manage its chemical technology group. He held the MIT record for most points scored in a basketball game for 46 years, and graduated the university as its all-time scoring leader.

9. Charles Koch
photo: USA Today

CEO, Koch Industries
Net Worth: $39.6 Billion

Age: 81
Source Of Wealth: Diversified
Residence: Wichita, KS
Citizenship: United States
Marital Status: Married
Children: 2
Education: Bachelor of Arts / Science, Massachusetts Institute of Technology; Master of Science, Massachusetts Institute of Technology

Charles took over as chairman and CEO of the oil and gas business after his father’s death in 1967. Koch Industries grew into a $100 billion (sales) conglomerate that includes chemicals manufacturing, pipelines, and commodities trading.

8. Michael Bloomberg
photo: Huffington Post

CEO, Bloomberg
Net Worth: $40 Billion

Age: 75
Source Of Wealth: Bloomberg LP, Self Made
Residence: New York, NY
Citizenship: United States
Marital Status: In Relationship
Children: 2
Education: Bachelor of Arts / Science, Johns Hopkins University; Master of Business Administration, Harvard Business School

Born in Boston, Massachusetts, US. Michael Bloomberg is an American business magnate, politician, and philanthropist. He is the founder, owner, and CEO of Bloomberg LP, a global financial data, and media company. He served as the 108th Mayor of New York City from 2002 to 2013. He has always been very active in the country’s politics.

7. Larry Ellison
photo: Refuzz

CEO and Founder, Oracle
Net Worth: $43.6 Billion

Age: 72
Source Of Wealth: Oracle, Self Made
Residence: Woodside, CA
Citizenship: United States
Marital Status: Divorced
Children: 2
Education: Drop Out, University of Chicago; Drop Out, University of Illinois, Urbana-Champaign

Larry Ellison, an American businessman,  a co-founder of Oracle Corporation and was CEO until September 2014. Valued at $43.6 billion, he is currently the seventh richest person in the world. Currently, he is the executive chairman and chief technology officer of Oracle. Ellison has donated up to 1% of his wealth to charity and has signed The Giving Pledge.

6. Mark Zuckerberg
photo: Inc

Cofounder, Chairman and CEO, Facebook
Net Worth: $44.6 Billion

Age: 32
Source Of Wealth: Facebook, Self Made
Residence: Palo Alto, CA
Citizenship: United States
Marital Status: Married
Children: 1
Education: Drop Out, Harvard University

Zuckerberg, a Harvard dropout, co-founded the social network in 2004 when he was 19. He is the sixth richest person in the world valued at $44.6 billion. According to Forbes – Mark Zuckerberg and his wife Priscilla Chan made an audacious bet in late September, promising to spend $3 billion of their fortune over the next decade to manage, cure or prevent all disease by the end of the century. The move follows the couple’s decision in December 2015 to give away 99% of their Facebook stock over their lifetime “to advance human potential.” The potential payout to the world has risen as the price of Facebook stock increased by 15% between the announcement and December 2016.

5. Jeff Bezos
photo: Fortune

CEO and Founder, Amazon.com
Net Worth: $45.2 Billion

Age: 53
Source Of Wealth: Amazon.com, Self Made
Residence: Seattle, WA
Citizenship: United States
Marital Status: Married
Children: 4
Education: Bachelor of Arts / Science, Princeton University

An American technology and retail entrepreneur and investor. He is the founder, chairman, and chief executive officer of Amazon.com, which has become the world’s largest online shopping retailer. Amazon’s chief Jeff Bezos added $20 billion to his net worth over 14 months through December 2016, the largest gain of anyone in the world. The online retailer’s stock has shares soared thanks in part to its booming cloud-computing unit, Amazon Web Services. “We are the best place in the world to fail (we have plenty of practice!), and failure and invention are inseparable twins,” Bezos wrote in his last annual report. Raised by his mom and stepdad, a Cuban immigrant who adopted him, he quit a lucrative New York hedge fund job in 1994 with the simple idea to sell books online. Now Amazon sells nearly everything a consumer might want. His other passion is space travel: His aerospace company, Blue Origin, is developing a reusable rocket that Bezos says will carry passengers. A Star Trek fan, Bezos played a small role in the Star Trek film released in July 2016, appearing as an alien-faced Starfleet official.

4. Carlos Slim Helu
photos: Alchetron

Honorary Chairman, América Móvil
Net Worth: $50 Billion

Age: 77
Source Of Wealth: telecom, Self Made
Residence: Mexico City, Mexico
Citizenship: Mexico
Marital Status: Widowed
Children: 6
Education: Bachelor of Arts / Science, Universidad Nacional Autonoma de Mexico

Carlos Slim Helu, a Mexican business magnate, investor, and philanthropist. Slim is the largest shareholder of The New York Times, with a nearly 17% stake. He also owns a majority stake in industrial conglomerate Grupo Carso, financial venture Grupo Financiero Inbursa and infrastructure development and operating company Ideal.

3. Warren Buffett
photo: blogcdn

CEO, Berkshire Hathaway
Net Worth: $60.8 Billion

Age: 86
Source Of Wealth: Berkshire Hathaway, Self Made
Residence: Omaha, NE
Citizenship: United States
Marital Status: Widowed, Remarried
Children: 3
Education: Bachelor of Arts / Science, University of Nebraska Lincoln; Master of Science, Columbia University

Warren Buffett, the Oracle of Omaha, is one of the world’s richest men. Exactly how rich he is changes by the day, as his wealth is tied up in Berkshire Hathaway stock, but usually he’s in the top five. At the time of writing, he’s currently number 3 with more than $60.8 billion to his name.

2. Amancio Ortega
photo: nydailynews

Founder and Former Chairman of Inditex fashion group
Net Worth: $67 Billion

Age: 80
Source Of Wealth: Zara, Self Made
Residence: La Coruna, Spain
Citizenship: Spain
Marital Status: Married
Children: 3

Zara founder Amancio Ortega is the richest man in Europe and the wealthiest retailer in the world. He started manufacturing textiles through a small family company in 1963 before cofounding Zara with his ex-wife Rosalía Mera in 1975. By the mid-1980s, Ortega had expanded throughout Spain, and he opened his first store in America in 1989.

1. Bill Gates
photos: Australian Institute of Business

Cofounder Bill & Melinda Gates Foundation
Net Worth: $75 Billion

Age: 61
Source Of Wealth: Microsoft, Self Made
Residence: Medina, WA
Citizenship: United States
Marital Status: Married
Children: 3
Education: Drop Out, Harvard University

The richest man in the world today. an American business magnate, investor, author, and philanthropist. In 1975, Gates and Paul Allen co-founded Microsoft, which became the world’s largest PC software company. During his career at Microsoft, Gates held the positions of chairman, CEO and chief software architect, and was the largest individual shareholder until May 2014. Gates is one of the best-known entrepreneurs of the personal computer revolution. He has been criticized for his business tactics, which have been considered anti-competitive, an opinion that has in some cases been upheld by numerous court rulings. Later in his career, Gates pursued a number of philanthropic endeavors, donating large amounts of money to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation, established in 2000.

H/T: Forbes, Wiki