Richest billionaires in Connecticut

The first billionaire is generally considered to be John D. Rockefeller in 1916, though some argue it was Henry Ford in 1925.

Fast-forward some 100 years to 2021: As the COVID-19 pandemic continued to rage, a record-breaking 660 people became billionaires globally, growing the previous year's number by 30%.

While the United States has the most billionaires of any country, Americans are somewhat split on their feelings about the billionaire class. According to data from the Pew Research Center, the nation became somewhat more critical of billionaires between 2020 and 2021.

Although support for individual billionaires like Bill Gates is relatively strong, many Americans view the ultrarich—as a group rather than as individuals—negatively. Meanwhile, Amazon CEO Jeff Bezos is projected to become the world's first trillionaire by 2026.

The U.S.'s wealthiest billionaires are mostly concentrated within just a couple of industries: finance and investments and technology. Other wealthy sectors include food and drink, fashion and retail, and media and entertainment. Stacker found the richest billionaires in Connecticut, using data from Forbes. Net worth is as of Sept. 18, 2025.

#18. John Liew
- Net worth: $1.1 billion
- Source: investment management
- Industry: Finance & Investments
- Lives in: Greenwich, Connecticut

#17. David Kabiller
- Net worth: $1.1 billion
- Source: investment management
- Industry: Finance & Investments
- Lives in: Greenwich, Connecticut

#16. Igor Tulchinsky
- Net worth: $1.7 billion
- Source: Hedge funds
- Industry: Finance & Investments
- Lives in: Greenwich, Connecticut

#15. Mario Gabelli
- Net worth: $1.9 billion
- Source: Money management
- Industry: Finance & Investments
- Lives in: Greenwich, Connecticut

#14. Michael Rees
- Net worth: $1.9 billion
- Source: Private equity
- Industry: Finance & Investments
- Lives in: New Canaan, Connecticut

#13. Lucy Stitzer
- Net worth: $2.2 billion
- Source: Cargill
- Industry: Food & Beverage
- Lives in: Greenwich, Connecticut

#12. Alexandra Daitch
- Net worth: $2.2 billion
- Source: Cargill
- Industry: Food & Beverage
- Lives in: Old Lyme, Connecticut

#11. Stephen Mandel Jr
- Net worth: $2.5 billion
- Source: Hedge funds
- Industry: Finance & Investments
- Lives in: Greenwich, Connecticut

#10. Doug Ostrover
- Net worth: $2.9 billion
- Source: Private equity
- Industry: Finance & Investments
- Lives in: Greenwich, Connecticut

#9. Clifford Asness
- Net worth: $2.9 billion
- Source: Money management
- Industry: Finance & Investments
- Lives in: Greenwich, Connecticut

#8. Vincent McMahon
- Net worth: $3.5 billion
- Source: Entertainment
- Industry: Sports
- Lives in: Greenwich, Connecticut

#7. William Stone
- Net worth: $3.9 billion
- Source: Software
- Industry: Technology
- Lives in: East Lyme, Connecticut

#6. Alexandre Behring
- Net worth: $5.6 billion
- Source: Investments
- Industry: Finance & Investments
- Lives in: Greenwich, Connecticut

#5. Karen Pritzker
- Net worth: $6.8 billion
- Source: Hotels, investments
- Industry: Finance & Investments
- Lives in: Branford, Connecticut

#4. Andreas Halvorsen
- Net worth: $8.0 billion
- Source: Hedge funds
- Industry: Finance & Investments
- Lives in: Darien, Connecticut

#3. Ray Dalio
- Net worth: $15.4 billion
- Source: Hedge funds
- Industry: Finance & Investments
- Lives in: Greenwich, Connecticut

#2. Brad Jacobs
- Net worth: $15.7 billion
- Source: Logistics
- Industry: Logistics
- Lives in: Greenwich, Connecticut

#1. Steve Cohen
- Net worth: $23.0 billion
- Source: Hedge funds
- Industry: Finance & Investments
- Lives in: Greenwich, Connecticut