The world's billionaires born in the year of the Pig

John Mars

1. John Mars

Age: 84
Nationality: American
Assets: 23.2 billion USD

Along with his two brothers, John Mars owns Mars - the world's leading candy manufacturer. They inherited the company after their father passed away in 1999. The company's prominent products are M&M's, Doublemint, Extra, Snickers and Whiskas cat food.

Charles Koch

2. Charles Koch

Age: 84
Nationality: American
Assets: 48.9 billion USD

Charles Koch is the Chairman and CEO of Koch Industries - the second largest private company in the US. The company operates in many fields, from pipelines, petrochemicals to carpet manufacturing, with annual revenue of about 100 billion USD.

Kjeld Kirk Kristiansen

3. Kjeld Kirk Kristiansen

Age: 72
Nationality: Danish
Assets: 5.1 billion USD

He is the third generation to own the LEGO toy empire. His son, Thomas, is currently the company's vice president. In addition, Kjeld Kirk Kristiansen also has shares in Merlin Entertainment - the owner of Madame Tussauds tourist area - and invests in many real estate and wind farms.

Stefan Persson

4. Stefan Persson

Age: 72
Nationality: Swedish

Assets: 15.9 billion USD
Stefan Persson is currently the richest man in Sweden, thanks to the fashion brand H&M - the company founded by his father. Persson holds 29% of the shares here. His son - Karl-Johan is currently CEO of H&M.

Anil Ambani

5. Anil Ambani

Age: 60
Nationality: Indian
Assets: 2.2 billion USD

Anil is the younger brother of billionaire Mukesh Ambani. The two split the Reliance Industries empire after their father's death. Anil controls construction, telecommunications, asset management, entertainment and power generation.

Elon Musk

6. Elon Musk

Age: 48
Nationality: American
Assets: 20.8 billion USD

Elon Musk was born in South Africa, moved to Canada at the age of 17, then went to the US to study at university. He is famous for his love of entrepreneurship. Over the past two decades, Elon Musk has created several billion-dollar companies, such as PayPal, Tesla and SpaceX.

Sara Blakely

7. Sara Blakely

Age: 48
Nationality: American
Assets: 1 billion USD

With a starting capital of $5,000, after more than 10 years, Sara Blakely - owner of the underwear company Spanx has a fortune of up to $1 billion. Before founding Spanx, she worked as a tour guide at Disney World and a sales person at a small company.

Nathan Blecharczyk

8. Nathan Blecharczyk

Age: 36
Nationality: American
Assets: 3.7 billion USD

Nathan Blecharczyk is the Chief Strategy Officer and co-founder of the home-sharing company Airbnb. He was the company's first engineer, working with Chesky and Gebbia. Airbnb is now available in more than 81,000 cities in 191 countries.

Kevin Systrom

9. Kevin Systrom

Age: 36
Nationality: American
Assets: 1.3 billion USD

Kevin Systrom co-founded the photo-sharing app Instagram with Mike Krieger in 2010. Two years later, Instagram was sold to Facebook for $1 billion. Both men remained with the company and announced their departure a few months ago.

Katharina Andresen

10. Katharina Andresen

Age: 24
Nationality: Norwegian
Assets: 1.5 billion USD

Katharina Andresen is the second youngest billionaire in the world, after her sister - Alexandra. She and her sister inherited 42% of the shares in the family investment company - Ferd. Katharina is said to have a high possibility of working for this company after graduation.