John Collison, the 33-year-old Limerick native who has a net worth of $7.2 Billion, is one of the world’s youngest self-made billionaires, according to Forbes.

John Collison and his brother Patrick Collison, 35, are the founders of the tech company Stripe, which Forbes says was valued at $65 billion in February.

John was previously named by Forbes in its 2016 America's Richest Entrepreneurs Under 40 list.

Meanwhile, Patrick, who handles engineering and serves as the public face of Stripe, was included in Forbes' 2022 30 Under 30 Hall of Fame.

The Irish brothers now reside in San Francisco.

Forbes noted that 2024 is the first time in 15 years that there are no self-made billionaires under the age of 30; this year, the 25 youngest people on the Forbes’ World’s Billionaires list are all 33 or younger.

While John Collison is one of the world's youngest self-made billionaires, Irish citizens Firoz Mistry, 27, and Zahan Mistry, 25, both heirs to the Mistry fortune, are among the world's youngest billionaires. Though they have Irish citizenship, the Mistry siblings live in India.

The Collison brothers and the Mistry siblings are among the 11 Irish citizens on Forbes’ 2024 World’s Billionaires List:

  • 228. Shapoor Mistry - $9.9 billion
  • 373. John Collison - $7.2 billion
  • 373. Patrick Collison  - $7.2 billion
  • 398. John Grayken - $6.9 billion
  • 624. Firoz Mistry - $4.9 billion
  • 624. Zahan Mistry - $4.9 billion
  • 1187. Eugene Murtagh - $2.8 billion
  • 1187. Denis O'Brien - $2.8 billion 
  • 1286. John Dorrance, III - $2.6 billion
  • 1496. Dermot Desmond - $2.2 billion
  • 2046. John Armitage - $1.5 billion

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According to Forbes: "There are now more billionaires than ever: 2,781 in all, 141 more than last year, and 26 more than the record set in 2021.

"They’re richer than ever, worth $14.2 trillion in aggregate, up by $2 trillion from 2023 and $1.1 trillion above the previous record, also set in 2021."

Forbes said it ranked the world's billionaires based on their net worths, which were calculated using stock prices and exchange rates from March 8, 2024.

Chase Peterson-Withorn, Forbes Senior Editor, Wealth, commented: “It’s been an amazing year for the world’s richest people, with more billionaires around the world than ever before.

“A record-breaking 14 centibillionaires have 12-figure fortunes.

"Even during times of financial uncertainty for many, the super-rich continue to thrive.”