Net worth: $1.1 billionAndresen, along with her older sister who is also on this list, is one of the richest young people in Norway. She is a part owner of the Norwegian holding company Ferd AS after her father transferred stakes to both of his daughters. She is 26 years old. Net worth: $1.1 billionKatharina Andresen is also part owner of Ferd AS, a conglomerate company that owns stakes in financial and real estate companies. According to Andresen's Instagram account, she is taking online courses at Harvard Business School. Net worth: $1.5 billionFranceschi is the co-founder and co-CEO of Brex, a fintech company that offers business credit cards and spending management software for companies. Brex is worth $12.3 billion, according to TechCrunch, but recently laid off 11% of its staff amid the slowdown in the tech industry. Franceschi grew up in Brazil and is 26 years old. Net worth: $1.5 billionDubugras is co-founder and co-CEO of Brex, along with Pedro Franceschi. He was also recently appointed to the board of Expedia Group. He grew up in Brazil, as well.Net worth: $1.6 billionAustin Russell founded the self-driving car technology company Luminar at just 17 years old. He dropped out of Stanford after only six months after receiving the Thiel Fellowship, the startup accelerator created by Peter Thiel. Luminar went public on the Nasdaq in 2020. Russell is now 27. Net worth: $2 billionBreslow is the founder and chairman of Bolt, an e-commerce payments company that allows customers to buy products with only one click. Bolt was founded in 2014, and is reportedly valued at $11 billion. Breslow is 28 years old. Net worth: $2.4 billionWitzøe is the wealthiest man in Norway at 29 years old. He owns nearly half of a Norwegian fish-farming company called Salmar after his father gifted him a stake at just 19. The company is one of the world's largest producers of salmon. Net worth: $1.2 billionStanley Tang, 29, co-founded the food delivery platform DoorDash along with Andy Fang, who is also on this list. Tang is currently the chief product officer of the company. He is an avid poker player. Net worth: $1.1 billionFang is another co-founder of DoorDash. The company went public in 2020, causing Fang's net worth to skyrocket. Fang grew up in San Francisco and attended Stanford University. Net worth: $2 billionLehmann is a billionaire at just age 20. According to Forbes, he owns 50% of one of the largest drugstore chains in Germany, called drogerie market. His father, Guenther Lehmann, invested in the chain in 1974 and transferred an ownership stake to his son in 2017. However, little is known about Kevin David nor Guenther, according to Forbes. Net worth: $1.3 billionWang Zelong is a 26-year-old Chinese billionaire, who has invested in companies in China that produce titanium dioxide, according to Forbes.