The 2025 Forbes 400 list features a growing number of young billionaires, many of whom built their wealth through new technology, investing, and innovation. While the average age among America’s richest remains around 70, a rising group under the age of 43 is making its mark—and its money—faster than ever before. This year, 33 individuals under 50 earned a place on the list, up from 26 in 2024. Among them, the 10 youngest billionaires now hold a combined net worth of nearly $357 billion, a sharp increase from last year’s $273 billion.
Much of that growth came from a single person—Meta CEO Mark Zuckerberg—whose fortune increased by $72 billion in just one year.
These young billionaires come from diverse backgrounds, but most share one thing in common: they made their fortunes through business ventures they started or invested in, not inheritance. Only one among them inherited their wealth.
World’s youngest billionaires according to Forbes
Nathan Blecharczyk
Nathan Blecharczyk, 42, is the co-founder of Airbnb and currently leads the company’s technology operations. As the first engineer at Airbnb, Blecharczyk helped build the platform from scratch. Today, the service has hosted more than 2 billion stays in over 220 countries. His estimated net worth stands at $8.7 billion.
Mark Zuckerberg
Mark Zuckerberg, 41, is the third richest person in the United States, with a personal fortune of $253 billion. As CEO of Meta, he led a major expansion into artificial intelligence this year, including a $14 billion investment in Scale AI. He also hired several high-profile engineers to build Meta’s AI division. Meta’s stock surged 42% in 2025, significantly boosting Zuckerberg’s wealth.
Dustin Moskovitz
At 41, Dustin Moskovitz is best known as one of the co-founders of Facebook. He later founded Asana, a software company focused on workplace productivity. Moskovitz has also become a major philanthropist. Along with his wife, Cari Tuna, he manages the Good Ventures Foundation, which has donated nearly $4 billion to global health, science, and education causes. His personal net worth is estimated at $12 billion.
Brian Venturo
Brian Venturo, 40, is a new addition to the Forbes 400. He co-founded CoreWeave, which started as a cryptocurrency mining operation and later became a fast-growing provider of cloud computing for artificial intelligence. After the company went public in March 2025, its value doubled. Venturo owns about 7% of CoreWeave, giving him an estimated fortune of $4.2 billion.
Baiju Bhatt
Baiju Bhatt, also 40, co-founded Robinhood with Vlad Tenev. Bhatt played a key role in designing the app and leading the company through rapid growth during the pandemic. He stepped down from his executive role in 2024 but remains on the board and holds a 6% stake in the company. Robinhood’s stock has quadrupled over the past year, helping push Bhatt’s net worth to $6 billion.
Josh Kushner
Josh Kushner, 40, built his $5.2 billion fortune through venture capital. He founded Thrive Capital, a firm that has invested in major companies such as Stripe and OpenAI. Though he comes from a wealthy family, Kushner’s business success is independent, and Thrive now manages over $15 billion in assets. He is also known for being married to model Karlie Kloss.
Eduardo Vivas
Eduardo Vivas, 39, took an unlikely path to wealth. A high school dropout who once worked in a warehouse, Vivas later founded a job search startup that was bought by LinkedIn. He went on to become an early investor and board member at gaming and advertising firm AppLovin. His 2% stake in the company has helped build his fortune to $3.8 billion.
Lukas Walton
Also 38, Lukas Walton is the only one among the ten who inherited his wealth. He is the grandson of Walmart founder Sam Walton and received his share of the family fortune after the death of his father in 2005. With an estimated net worth of $39.8 billion, Walton focuses his efforts on impact investing through his firm, Builders Vision, which funds sustainability and climate-focused projects.
Vlad Tenev
Vlad Tenev, 38, is the CEO and co-founder of Robinhood, the trading app that gained popularity during the pandemic. Under his leadership, the company has expanded its services to include retirement accounts and credit cards. Robinhood now serves over 26 million users. Tenev’s net worth is estimated at $5.8 billion.
Edwin Chen
At 37, Edwin Chen is the youngest person on the list. He built his $18 billion fortune by founding Surge AI, a company that provides high-quality data for artificial intelligence systems. A former engineer at Google, Facebook, and Twitter, Chen started the company in 2020 and grew it without outside investment. Surge AI now generates over $1 billion in yearly revenue and is valued at $24 billion, with Chen owning the majority stake.