Ambani Family, India (Estimated Wealth: $64.5 billion): The Ambani family owns Reliance Industries, a group of companies that covers everything from oil to telecommunications. The company's president and largest shareholder, Mukesh Ambani, is the richest man in Asia, with a fortune of $64.5 billion. Reliance Industries Group started with Dhirubhai Ambani as a fabric manufacturer. The group is now on the Fortune 500 list with a value of $150 billion. As Dhirubhai left no will, his two sons, Mukesh and Anil, took over the business, and after a "battle" for succession, Mukesh took over the majority of Reliance Industries. The family house is a 27-floor mansion with 4.000 square meters in Mumbai.