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American businessman Thomas Siebel has an estimated net worth of $2.2 billion as of April 2016 according to Forbes. He is known to be the Chief Executive Officer, Chairman and founder of C3. He is also the current chairman of First Virtual Group which holds interests in agribusiness, philanthropy, commercial real estate and investment management.

British Iraqi billionaire and businessman Nadhmi Auchi has an estimated net worth of $2.2 billion as of March 2013 according to Forbes. He is known to be the founding president of Anglo Arab Organisation as well as the Chairman and founder of General Mediterranean Holding (GMH). General Mediterranean Holding is actually a conglomerate of 120 companies based in different countries in the world.

Like his brother Ayman Hariri, Bahaa Hariri is a Lebanese billionaire and businessman with an estimated net worth of $2.2 billion as of April 2016 according to Forbes. He is the eldest son of Rafik Hariri, the slain prime minister of Lebanon. Bahaa Hariri obtained most of his net worth from his numerous investments as well as his logistics and real estate businesses.

Indian businessman Rajan Biharilal Raheja has an estimated net worth of $2.2 billion as of April 2016 according to Forbes. Rajan Raheja is a graduate of Bombay University where he completed his Bachelor of Arts/Sciences degree. He is currently married with two children.

Ajay Piramal is the Chairman of Piramal Group and he has an estimated net worth of $2.2 billion as of April 2016 according to Forbes. He is the 48th richest person in India and was ranked 931st in the list of World Billionaires. Piramal Group is a diversified conglomerate that operates in 100 countries. It started from a textile centric business to a $2 billion conglomerate with interests in pharmaceuticals, packaging, financial services, glass manufacturing, and real estate.

British businessman Charles Dunstone has an estimated net worth of $2.2 billion as of April 2016, according to Forbes. Dunstone currently serves as the Chairman of TalkTalk Group as well as The Carphone Warehouse.

Argentinian American businessman Eduardo Eurnekian has an estimated net worth of $2.2 billion as of April 2016 according to Forbes.

Swiss businesswoman and renowned art collector Esther Grether has an estimated net worth of $2.2 billion as of March 2013 according to Forbes. Grether amassed most of her net worth from inheriting her husband’s beauty and health care products company in 1975.  She currently runs the company with her children.

Brazilian businesswoman Maria de Lourdes Egydio Villela has an estimated net worth of $2.2 billion as of March 2012 according to Forbes. Most of Villela’s fortune is derived from her massive banking investments.

Dutch media tycoon John de Mol first struck it rich as a founding investor, along with Joop van den Ende, in production company Endemol, associated with such reality TV hits as Deal or No Deal, Fear Factor and Big  Brother. Endemol was sold to Spanish telecom giant Telefonica in 2000 for $5.3 billion. In May 2007, he returned as one of the major shareholders of Endemol, together with the Italian company Mediaset of Silvio Berlusconi in a 2.6 billion Euro deal.. He is now one of the biggest in reality TV.