Susan Alice Buffett | Net Worth: $3 billion

Source: Warren Buffett

Business tycoon Warren Buffet is worth around $103 billion. In fact, his name has to be the biggest in the world of investments.  He is considered to be one of the most successful men in business, making him the seventh wealthiest person in the world at 90 years old. Impressively, the workaholic business mogul still serves as the chief executive officer of Berkshire Hathaway. Warren is popularly known for founding The Giving Pledge with Bill Gates, a charity where billionaires pledge to give away at least half of their fortunes.

Somebody had to take over his billion-dollar firm, and it was none other than his daughter, Susan Alice Buffett. Warren has always been looking out for her, and he even gave her shares. On her part, Susan has made the most of her wealth through maximizing her shares. Just like her old man, Susan is a philanthropist too. She provides grants that help kids from low-income households through her very own, Sherwood Foundation.