They’re young. They’re rich. And they’re rewriting the rules of success. In 2025, the most powerful billionaires under 40 are not just tech geniuses—they’re visionaries reshaping entire industries. Whether it’s AI, e-commerce, social media, or defense tech, these entrepreneurs didn’t wait for opportunity—they created it.
Below, we introduce the Top 10 Billionaires Under 40. Their stories will inspire you—and maybe even spark your next big move.
#10. Ben Francis — Founder of Gymshark
Age: 33 | Net Worth: $7.5B
Ben started Gymshark at 19 while delivering pizzas. His fitness clothing empire now spans 180+ countries. His genius? Mastering influencer marketing before it was cool.
#9. Alexandr Wang — CEO, Scale AI
Age: 27 | Net Worth: $8.5B
A high school math prodigy turned Silicon Valley star, Alexandr co-founded Scale AI at just 19. His company now powers the data backbone for the world’s top AI systems.
#8. Johnny Boufarhat — Founder, Hopin
Age: 32 | Net Worth: $9B
After falling ill, Johnny built Hopin as a remote-first events platform. It exploded during COVID and became a unicorn in record time—proof that problems fuel innovation.
#7. Caroline Ellison — AI Crypto Fund Manager
Age: 31 | Net Worth: $11B
Once known for her FTX drama, Caroline has made a surprising comeback—leading one of the most successful AI-integrated crypto hedge funds in 2025. The ultimate redemption arc.
#6. Palmer Luckey — Founder, Anduril Industries
Age: 32 | Net Worth: $12B
He revolutionized gaming with Oculus, sold it to Facebook, and then built a billion-dollar defense tech company, Anduril. He’s Silicon Valley’s rogue genius.
#5. Austin Russell — CEO, Luminar Technologies
Age: 30 | Net Worth: $15B
The youngest self-made billionaire of 2021, Austin’s lidar tech powers the future of autonomous vehicles. His hardware makes Tesla nervous—and investors excited.
#4. Pavel Durov — Founder, Telegram
Age: 40 | Net Worth: $17B
The “Mark Zuckerberg of Russia,” Pavel built Telegram as a privacy-first messaging app. In 2025, it’s a lifeline for activists—and a billion-dollar business model.
#3. Evan Spiegel — Co-Founder, Snapchat
Age: 35 | Net Worth: $18B
From college dropout to social media pioneer, Evan’s Snapchat is still a Gen Z favorite. His AR bets and hardware expansion paid off big time in 2024–2025.
#2. Sam Altman — CEO, OpenAI
Age: 39 | Net Worth: $38B
The man behind ChatGPT and AGI debates, Sam’s leadership at OpenAI reshaped tech forever. He’s also involved in crypto (Worldcoin) and space tech—he’s just getting started.
#1. Mark Zuckerberg — CEO, Meta Platforms
Age: 40 | Net Worth: $119B
Still one of the youngest tech moguls on earth, Zuck’s pivot to AI and the metaverse earned him a stunning comeback. His vision? Build the operating system of the future.
Top 10 Billionaires Under 40 in 2025
| Rank | Name | Age | Net Worth (USD) | Company/Source |
|---|---|---|---|---|
| 1 | Mark Zuckerberg | 40 | $119B | Meta Platforms |
| 2 | Sam Altman | 39 | $38B | OpenAI, Worldcoin |
| 3 | Evan Spiegel | 35 | $18B | Snapchat |
| 4 | Pavel Durov | 40 | $17B | Telegram |
| 5 | Austin Russell | 30 | $15B | Luminar Technologies |
| 6 | Palmer Luckey | 32 | $12B | Anduril Industries |
| 7 | Caroline Ellison* | 31 | $11B | AI Crypto Fund (*Recent resurgence) |
| 8 | Johnny Boufarhat | 32 | $9B | Hopin |
| 9 | Alexandr Wang | 27 | $8.5B | Scale AI |
| 10 | Ben Francis | 33 | $7.5B | Gymshark |
Want to Learn from the Best?
Each billionaire listed above built something that didn’t exist before—and scaled it fast. The key is spotting opportunity early, solving real problems, and moving faster than anyone else.
👉 Which billionaire inspires you most? Drop a comment below.