Jeff Yass
Jeff Yass, who lives in Bala Cynwyd, is an American billionaire businessman. He co-founded and serves as managing director of Susquehanna International Group (SIG), a trading and technology firm, also based in Bala Cynwyd.
As of April 2025, Forbes estimated his net worth at $59 billion, making him the richest person in Pennsylvania and the 25th wealthiest globally.
Yass is a registered Libertarian who primarily donates to Republican candidates and causes, including significant contributions to super-PACs like Club for Growth Action. He and his wife, Janine Yass, are notable supporters of school choice initiatives.
Additionally, Yass is a major investor in TikTok. After meeting with then-presidential candidate Donald Trump in March 2024, Trump’s stance shifted from supporting a ban on TikTok to opposing it.
In the 2024 U.S. election cycle, Yass donated approximately $100 million to Republican groups and campaigns.
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WSJ: How a Bala Cynwyd Financial Services Firm Hopes to Turn Sports Betting into Big Business
A Bala Cynwyd–based financial powerhouse is blending finance, sports, and data-driven betting in the prediction markets, writes Kevin T. Dugan for Wall Street Journal. Susquehanna…
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Gladwyne Residents React to Jeff Yass–Backed Redevelopment Vision
Pennsylvania’s richest man, Jeff Yass, backs a plan to revitalize much of Gladwyne’s downtown, writes Denali Sagner for The Philadelphia Inquirer. The proposal was unveiled…
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Bala Cynwyd Billionaire Jeff Yass Donates $100 Million to University Dedicated to Free Speech
Jeff Yass, co-founder of Susquehanna International Group, is once again making headlines, this time in higher education, writes Jessica Priest for The Texas Tribune. The…
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TikTok Trial Puts Bala Cynwyd’s Susquehanna International Group in the Spotlight
A high-stakes trial is underway in Norristown that could impact billions tied to TikTok, and Susquehanna International Group is at the center of it, writes…
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Bala Cynwyd’s Jeffrey Yass Advocates to Keep TikTok in the US
Jeffrey Yass, the Bala Cynwyd billionaire investor and megadonor for the Republican party, plays a crucial role in the ongoing TikTok saga, writes Dan Milmo…
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WSJ: Bala Cynwyd Billionaire Becomes the Largest Backer of ‘Anti-Woke’ University
Bala Cynwyd’s Jeff Yass, co-founder of Susquehanna International Group, has become the largest financial backer of the University of Austin (UATX), reports Juliet Chung for…
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Six Montgomery County Residents Make Forbes List of Richest People in World
Six Montgomery County residents have found their place on this year’s World’s Billionaires List, published by Forbes. Jeff Yass Bala Cynwyd billionaire and cofounder of…
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Bala Cynwyd Billionaire Jeff Yass Donates Millions to Texas Governor Re-election Campaign
Jeff Yass, co-founder of Susquehanna International Group based in Bala Cynwyd and one of the richest men in the world according to Forbes, last week…
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Forbes: These Billionaires All Have Ties to Philadelphia
The nation’s richest individuals collectively lost about $500 billion last year, but the elite are worth $4.5 trillion, writes Rob LaFranco and Chase Peterson-Withorn for…
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WSJ: A Bala Cynwyd Billionaire Has Been Instrumental in Stalling TikTok Ban
Jeff Yass, a Bala Cynwyd billionaire, has been building a network of support for TikTok, the Chinese video hosting service, in the United States, writes…
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