Serena Williams Is The First Athlete on Forbes' List of Richest <br />Self-Made Women She made the cover — and the case for her personal brand — in her conversation with the magazine. Williams is worth an estimated <br />$225 million, according to Forbes. She has won nearly $85 million <br />in prize money from her <br />72 singles titles. But the majority of her wealth comes from sponsorships, business deals and investments. She's endorsed by several companies, including Nike, Pepsi, Gatorade, and even Intel. She's also a successful businesswoman, launching Serena Ventures in 2014 to invest in companies that embrace diversity.