Susquehanna International Group
Susquehanna International Group (SIG) is a privately held global trading and technology firm founded in 1987. It specializes in quantitative trading, market making, and venture capital, leveraging game theory and decision science. With over 3,000 employees, SIG operates across North America, Europe, and Asia.
Address: 401 City Avenue, Bala Cynwyd, PA 19004
Phone: (610) 617-2600
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Forbes 2026 World’s Billionaires List Includes 6 in and Around Delaware County
The Philadelphia area is home to 16 billionaires. Six of them live in or near Delaware County, Internationally, there are now 3,428 billionaires, with 390…
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Two Cofounders From Montgomery County Rank Among World’s Wealthiest
Two Montgomery County businessmen have landed on the Forbes 2026 World’s Billionaires List with a combined fortune of around $84 billion, writes Ryan Mulligan for…
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Montco Trading Giant Steps Into New Betting Frontier
Bala Cynwyd-based Susquehanna International Group is stepping into one of Wall Street’s fastest-growing arenas: prediction markets, writes Samuel O’Brient for Business Insider. Prediction markets have…
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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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Jeff Yass, the Haverford Billionaire, Is Pennsylvania’s Richest Man
Jeff Yass, a Haverford entrepreneur and co-founder of Susquehanna International Group, with a net worth of $59 billion, is the richest man in Pennsylvania, according…
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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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One of America’s Richest Keeps Residence in Delaware County
She is one of the 400 richest people in America and she happens to live in Delaware County. Three others live nearby. Seven residents from…
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Bala Cynwyd Billionaire Jeff Yass Gives Additional $4M to Greg Abbott’s Campaign
Following a record donation of $6 million in December, Bala Cynwyd billionaire Jeff Yass has given another $4 million to Governor Greg Abbott’s campaign, writes…
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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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How Much Do You Really Know about Billionaire Jeff Yass and His Relationship to TikTok?
As Washington continues to wage war against TikTok, Jeff Yass, a Bala Cynwyd billionaire and cofounder of Susquehanna International Group, stands to lose a lot…
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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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Six Philadelphia-Area Residents Make Forbes 400 Richest Americans List
The latest Forbes 400 list of the richest people in America is out, and six Philadelphia-area residents made the cut this year. Ryan Mulligan tallied…




































