Warren Buffett

The "Oracle of Omaha," Warren Buffett, holds a net worth of approximately $125 billion at age 95, making him the oldest person on this list and one of the most enduring wealth creators in history. Buffett controls Berkshire Hathaway, a $1 trillion conglomerate owning GEICO, BNSF Railway, and large stakes in Apple, American Express, and Coca-Cola. In 2025, Buffett announced he would step back from day-to-day operations and hand the CEO role to Greg Abel, though he remains chairman. Unlike Bill Gates, who has given away over $60 billion, Buffett has pledged to donate 99% of his wealth, having already contributed $50 billion to the Gates Foundation and other charities.