Ever heard the name of the richest Floridian?

There are a number of billionaires in South Florida that you might have heard of such as Micky Arison, Phillip Frost and Wayne Huizenga, but a Palm Beach resident dwarfs them all in wealth.

His name is Thomas Peterffy and Forbes ranks him the 47th richest billionaire in the world, with a net worth of $20.3 billion.

You might know Peterffy if you are a sophisticated investor because he is the CEO  of Interactive Brokers, a company he founded in 1993.

Peterffy is self-made when it comes to his wealth. At the age of 21, he arrived in the U.S. in 1965 as the penniless descendant of Hungarian aristocrats who lost nearly everything to the Soviets, Forbes reports.

The other Floridians on the list:

Rank Net Worth $M Display Name Origin Of Wealth
47 20300 Thomas Peterffy discount brokerage
138 11000 David Tepper hedge funds
154 9700 Micky Arison Carnival Cruises
217 7200 Shahid Khan auto parts
321 5600 Charles Johnson money management
372 5200 Robert Rich Jr frozen foods
404 4900 Reinhold Schmieding medical devices
422 4800 Dirk Ziff investments
441 4700 J. Christopher Reyes food distribution
441 4700 Jude Reyes food distribution

Leading the overall list is centi-billionaire Jeff Bezos, who seized the top spot for the first time. The Amazon guru has a fortune of $112 billion, up $39.2 billion from 2017, the biggest one-year gain ever.

Bill Gates, who has been the richest person in the world for 18 of the past 24 years, drops to No. 2 on the Forbes’ billionaires list. Gates has a fortune of $90 billion, up from $86 billion last year.

This is the biggest gap (in dollars) between the top 2 spots since 2001.

Warren Buffett, worth $84 billion, falls to the No. 3 spot. His net worth increased from $75.6 billion in 2017.

Bernard Arnault, with a fortune of $72 billion, ascends 7 spots in the ranks to No. 4.  Thanks to his $30.5 billion gain in the past year, Arnault is the richest person in Europe for the first time since 2012.

Rounding out the top five is Facebook’s Mark Zuckerberg, worth $71 billion.  Spanish clothing retailer Amancio Ortega (best known for the Zara apparel chain) in at No. 6, drops out of the top 5 for the first time since 2011. Ortega’s net worth is $70 billion, a $1.3 billion decrease from 2017.

For the complete list, visit:  www.forbes.com/billionaires

Here are some fun facts about the Forbes list:

  • 2,208 billionaires (up from 2,043 in 2017) made the list, with an average net worth of $4.1 billion, a record high.
  • The total combined net worth of this year’s billionaires was $9.1 trillion, up from $7.7 trillion last year.
  • 1,490 members are self-made billionaires, up from 1,371 in 2017.

You May Also Like
From Momentum to Permanence

In 2025, South Florida moved beyond buzz, securing major corporate commitments that reshaped the region’s economic future.

Read More
Aerial view of downtown Miami with high-rise buildings, boats on the water, and the text "Big Business Moves of 2025" overlaid on the image. South Florida Business & Wealth
Where the Billionaires Bought 

South Florida’s Defining Year in Luxury Real Estate.

Read More
Aerial view of a large, elegant white mansion with manicured gardens and palm trees, located on a beachfront with clear blue ocean and sky in the background. Neighboring luxurious homes line both sides. South Florida Business & Wealth
Flight of Fancy 

Hooters Air Promised Lift and Support—But Went Down Fast.

Read More
A Hooters Air passenger airplane painted in white and orange with owl logo on the tail sits on a runway surrounded by grassy areas at an airport. South Florida Business & Wealth
Capital Holds Steady

What South Florida’s Latest Business and Real Estate Moves Signal for 2026

Read More
Aerial view of luxury waterfront condos and homes in South Florida at sunset, with boats on the water and a city skyline in the background. Text overlay reads: "South Florida Business & Real Estate Trends. South Florida Business & Wealth
Other Posts
New Travel Rules, New Tourism Reality

Policy changes are reshaping Fort Lauderdale’s visitor mix.

Read More
A Delta airplane is parked at a brightly lit airport terminal at dusk, with the modern glass building illuminated and ground service vehicles nearby. South Florida Business & Wealth
Capital Holds Steady

What South Florida’s Latest Business and Real Estate Moves Signal for 2026

Read More
Aerial view of a coastal city with high-rise buildings, lush islands, luxury waterfront homes, and yachts in the water, with a sandy beach and turquoise ocean in the foreground during sunset. South Florida Business & Wealth
A Riverfront Revival

Huizenga Park Reopens After $15 Million Transformation in Downtown Fort Lauderdale

Read More
A lively city park with many people walking, biking, and relaxing among trees and gardens, with tall modern buildings in the background on a sunny day. South Florida Business & Wealth
Meet the Newest Couriers on the Block

Delivery Robots Hit the Streets in Fort Lauderdale and Wilton Manors

Read More
A small, four-wheeled delivery robot with "serve" written on its side and an orange flag drives on a sidewalk in a suburban neighborhood with trees and greenery. South Florida Business & Wealth