Jeff Yass

Jeffrey Steven Yass is an American billionaire businessman. According to Forbes, Yass has a net worth of US$65 billion as of December 2025, up from $27.6 billion in April 2024. The richest man in Pennsylvania, he is also the 25th richest in the world. He is a registered Libertarian who gives money to conservative super PACs including Club for Growth Action and the Protect Freedom Political Action Committee. He and his wife Janine Yass are supporters of school choice, a cause to which they have donated tens of millions of dollars.