Net Worth: $21.2 billion Wealth Source: Chairwoman, CEO, and President of Fidelity Investments Country of Citizenship: United States
Net Worth: $22.8 billion Wealth Source: Inheritance of Antofagasta, a Santiago-based mining company Country of Citizenship: Chile
Net Worth: $24.3 billion Wealth Source: Stakeholder in Altana, a German chemical company, and stakeholder in BMW Country of Citizenship: Germany
Net Worth: $27.5 billion Wealth Source: 50% owner of Las Vegas Sands casinos Country of Citizenship: United States
Net Worth: $30.2 billion Wealth Source: Chairman of Hancock Prospecting Country of Citizenship: Australia
Net Worth: $31.7 billion Wealth Source: 1/3 ownership of Mars (candy and pet food) Country of Citizenship: United States
Net Worth: $43.6 billion Wealth Source: Amazon Country of Citizenship: United States
Net Worth: $60 billion Wealth Source: 42% stake in Koch Industries Country of Citizenship: United States
Net Worth: $65.3 billion Wealth Source: Heiress of Walmart Country of Citizenship: United States
Net Worth: $74.8 billion Wealth Source: Founder of L'Oreal Paris Country of Citizenship: France