Source of Wealth: Vehicle Manufacturing (BMW) Birth Place: Berlin, Germany Marital Status: Widowed (Herbert Quandt) Full Name: Johanna…

Gong Hongjia is Chinese entrepreneur who has an estimated net worth of $12.1 billion as of January 2018. Gong Hongjia started his career after graduating college when he worked as an agent for electronic products in Guangzhou. He decided to move to Hong Kong and co-founded his first company, Tecsun Radio, in 1994.

London-based Grosvenor Group, the property giant controlled by the Duke of Westminster, bounced back with a £395m profit last year and has built up a war chest of nearly £1 billion to return to global property markets. It plans to expand out of its traditional London stamping ground into Asia, especially China, and in November it spent £70m acquiring luxury properties in Scotland. A further boost to the 59-year-old duke’s coffers has come in the group’s scheme for 197 flats tucked behind Tate Modern on the Thames. Shares in the Grosvenor Group, which owns swathes of Mayfair, Belgravia and Knightsbridge are owned by trusts set up for the benefit of the Grosvenor family, which is headed by the 6th duke, who is the richest British-born member of our list but out of the top three for the first time since 1999. He stood down as chairman of the board in 2007 after 33 years but remains chairman of the trustees. The net asset value of the Grosvenor Group rose in 2010 to £2.78 billion. Adding Westminster’s private estate assets outside the group, and with the top end of the London housing market looking healthier, we raise our valuation.

James & Arthur Irving are Canadian billionaire brothers with an accumulated net worth of $12.34 billion as of August 2018. Together, they are the fourth richest people in Canada and ranked 276th in the list of World Billionaires.

Hugh Grosvenor is a British aristocrat and heir with an estimated net worth of $12.4 billion as of April 2019.

Swedish businesswoman and philanthropist Birgit Rausing has an estimated net worth of $12.6  billion as of February 2015 according to Bloomberg. In 2010, she was named by Forbes as the third wealthiest woman in Sweden.

American entrepreneur and co-founder of the social networking website Facebook, Dustin Moskovitz, has a net worth of $12.6 billion in April 2019. He is the world’s youngest billionaire, Dustin Moskovitz was Mark Zuckerberg’s Harvard roommate and Facebook’s third employee. He is just eight days younger than his friend, Zuckerberg. The two dropped out of Harvard and moved to California to work for the social networking firm full time; he was the social network’s first chief technology officer and then vice president of engineering. He left in 2008 to start Asana, a software company that allows individuals and small companies to better collaborate. Values of his new company include “being a mensch” and “chill-ness.” He sold around a 1% stake in Facebook in 2010 but held onto an estimated 5% in the company. Moskovitz signed onto the Giving Pledge in December 2010, and is now establishing Good Ventures, a foundation with his live-in girlfriend and former journalist Cari Tuna.

American software programmer and businessman James Goodnight has an estimated net worth of $12.8 billion in April 2019. He was one of the co-founders of SAS Institute in 1976. He served as the CEO of this multi-billion dollar company for over three decades.

Carl earned his MBA from the University of Iowa. After that, he spent a year setting up the computers of the company in France and Germany before moving to the group’s pacemaker company in Leechburg, PA and the plant in Winston-Salem. He remained dedicated in keeping the company privately-owned. Along with his parents, he was part of the $500 million of their two locations in Indiana, the luxury French Lick Resort and West Baden Springs Hotel between 1996 and 2007. The family has also added a casino and a Pete Dye-designed PGA golf course, which will host the 2015 PGA Senior Championship.

Currently based in Hong Kong, businessmen Thomas and Raymond Kwok has an estimated net worth of $12.9 billion April 2019 each.