The Youngest Billionaires In The World 2025 | Forbes

Building a fortune usually takes years, even a lifetime, but the numbers speak for themselves. Nearly three quarters of the world's billionaires are between the ages of 50 and 79. Just 12% are under 50. The rarest of all are those who manage to achieve billionaire status by the age of 30. This year, there are just 21 of those flush youngsters on the Forbes world's billionaires list. Unsurprisingly, all but two of them inherited their wealth. That goes for the Germany's Boehringer Ingelheim, the world's largest privately owned pharmaceutical company. He and his three siblings, ages 23, 25, and 27, are each worth an estimated $5.4 billion, thanks to his stake in the drugmaker. The vast majority of billionaire youths, 15 of them, are from Europe. Germany has the most on the continent, followed by Italy. And outside of Europe, there are two sibling pairs in South Korea and Brazil, who respectively inherited fortunes in online gaming and industrial machinery. There are only two self-made billionaires on the list. One is Australia's Ed Craven, age 29, who co-founded stake.com, thought to be the world's biggest crypto-backed online casino, with $4.7 billion in revenue in 2024. The other is the United States' Alexander Wang, age 28, who co-founded the AI data annotation unicorn, Scale.ai, and who recently became a billionaire for the second time. Back in 2021, a $7.3 billion valuation of the company gave Wang his first go at a three-comma fortune, but he dropped off the Forbes list in 2023, amid a swath of plummeting private tech valuations. Now, thanks to a May funding round that valued Scale.ai at $13.8 billion, the company and Wang are back.