Who Is Elon Musk? Biography, Companies, Net Worth

He’s the person who made electric cars cool, sent rockets into space on a budget, and once bought an entire social platform to rename it after a letter. Most people know the headlines, but the details of Elon Musk’s story—where he grew up, how he built his companies, and what he’s actually worth right now—might surprise you.

Born: June 28, 1971 · Key Companies: Tesla, SpaceX, X, xAI · Status: Wealthiest person in the world · Role: CEO of Tesla and SpaceX

Six key facts about a man who keeps rewriting what’s possible in technology and business.

Who is Elon Musk and why is he famous?

Elon Musk is a South African-born entrepreneur who built some of the world’s most valuable companies while becoming the wealthiest person on Earth. His rise from a kid coding video games in Pretoria to running multiple billion-dollar ventures spans four decades of relentless risk-taking and innovation.

Early life

Musk was born on June 28, 1971, in Pretoria, South Africa, to Errol and Maye Musk. His parents divorced when he was around 10 years old, and he grew up with a somewhat complicated relationship with his father, Errol. At age 12, Musk developed and sold a video game called Blastar for approximately $500—a sign of the entrepreneurial drive that would define his career. He briefly attended the University of Pretoria before emigrating to Canada in 1989 at age 17, gaining Canadian citizenship through his mother.

Rise to prominence

Musk earned bachelor’s degrees in physics and economics from the University of Pennsylvania in 1997. He co-founded Zip2 with his brother Kimbal in 1995, selling the company to Compaq in 1999 for $307 million. He then founded X.com in 1999, which merged with Confinity to form PayPal—acquired by eBay in 2002 for $1.5 billion. That same year, Musk became a U.S. citizen and began investing his fortune into the ventures that would make him a household name.

The implication: Musk’s early career followed a predictable Silicon Valley pattern of founding, selling, and reinvesting—but his willingness to pour everything into space exploration and electric vehicles set him apart from contemporaries who cashed out for good.

What exactly does Elon Musk do?

Musk serves as CEO and product architect of Tesla, the electric vehicle company he joined in 2004 and took full control of in 2008. He founded SpaceX in May 2002 with $100 million of his fortune, serving as both CEO and Chief Engineer. These two companies alone represent the core of his professional identity and the bulk of his net worth.

Tesla role

As Tesla CEO, Musk transformed the company from a struggling startup into the world’s most valuable automaker. Under his leadership, Tesla pioneered modern electric vehicles, expanded into energy storage and solar products, and built a global charging network. Musk is personally involved in product design and has been known to sleep on factory floors during production crunches. Tesla shares remain the largest component of his wealth.

“Musk describes himself as ‘cash poor’.”

— Wikipedia (Wealth of Elon Musk)

SpaceX role

SpaceX revolutionized the space industry by pioneering reusable rocket technology and dramatically lowering the cost of launching payloads into orbit. The company now operates commercial cargo and crew missions to the International Space Station, with contracts from NASA and the Department of Defense. Musk serves as CEO and Chief Engineer, overseeing technical decisions across rockets, spacecraft, and satellite internet programs.

Other ventures

Musk acquired Twitter in 2022 and rebranded it as X in 2023, positioning it as a platform for free speech. He co-founded OpenAI in 2015 but later departed; in 2023 he launched xAI, which became a subsidiary of SpaceX in 2026. He also led the Department of Government Efficiency under Trump’s second administration, departing in May 2025. These side ventures reflect Musk’s tendency to engage with political and social issues beyond his core businesses.

What is Elon Musk’s net worth?

As of April 2026, Forbes estimates Musk’s net worth at $809 billion; Bloomberg’s March 2026 estimate puts him at $636 billion. This gap reflects different methodologies for valuing his private holdings, particularly his SpaceX shares and xAI stakes. However, both trackers agree that Musk has been the wealthiest person in the world since 2025.

Richest rankings

Musk became the first person to reach $300 billion in net worth in 2021. He crossed $400 billion in December 2024, $500 billion in October 2025, $600 billion in mid-December 2025, $700 billion in late December 2025, and $800 billion in February 2026. No individual in modern history has accumulated wealth at this pace. He first appeared on the Forbes Billionaires List in 2012.

Sources of wealth

Approximately 75% of Musk’s wealth derives from Tesla stock, according to 2020 filings. His SpaceX stake, valued at over $200 billion in private market rounds, represents the second-largest component. The remainder comes from xAI, X, and various other investments. His brother Kimbal Musk has a net worth of approximately $700 million per Forbes, earned through Zip2, Tesla board participation, and restaurant ventures—a fraction of Elon’s fortune but substantial by any other measure.

The catch: Much of Musk’s wealth exists on paper. When Tesla stock drops, his net worth can fall by tens of billions in a single day, making the headline number more volatile than it appears.

How many children does Elon Musk have?

Musk has 14 children from four different women, a family structure that has drawn public attention given his prominence and the unusual circumstances surrounding some of the births. His children include twins and triplets born through IVF and surrogate arrangements.

Children details

The most publicly discussed births occurred with musician Grimes, with whom Musk has multiple children. He also has children from previous relationships, including his first wife Justine Musk. The scale of his family is unusual among billionaires, and Musk has spoken publicly about his desire to increase the human population.

Family background

Musk is the eldest of three children: brother Kimbal and sister Tosca. His mother Maye Musk, a former supermodel, has an estimated net worth of approximately $20 million. His father Errol Musk is a South African engineer and property developer. The family lived comfortably in South Africa with private school education and regular holidays. Kimbal Musk sold over $230 million in Tesla shares but remains on the company’s board, while sister Tosca Musk has built an estimated $170 million fortune through her film production company.

“I was famous until Elon became famous.”

— Maye Musk, Mother (Luxury Launches)

The implication: Musk’s family network spans from his billionaire brother to his ex-wife Justine Musk, who has an estimated net worth of approximately $3 million from book sales. The wealth distribution among family members illustrates how dramatically one person’s success can reshape a family’s financial trajectory.

What is Elon Musk diagnosed with?

Musk has publicly discussed being on the autism spectrum, describing himself as having Asperger’s syndrome in various interviews. This self-identification aligns with a broader pattern of candid admissions about his mental health and neurodivergence.

Autism discussion

In interviews, Musk has referenced his autism diagnosis as part of how he processes information and interacts with the world. He has described having a different way of thinking that he credits with enabling some of his unconventional business decisions. He has also spoken about the challenges of social interaction and how his direct communication style sometimes creates friction with investors, employees, and media.

Public statements

Musk’s willingness to discuss his neurodivergence has contributed to public conversations about autism representation in business leadership. He has acknowledged that his communication style—sometimes described as confrontational or abrupt—may be related to his processing style rather than deliberate aggression. This framing has been both praised for reducing stigma and criticized for potentially oversimplifying complex social behaviors.

What this means: Musk’s public discussions of his diagnosis have made him an unusual figure in autism advocacy conversations—someone who is open about neurodivergence while simultaneously being one of the most powerful people in global business.

Related reading: Elon Musk US citizenship

Elon Musk’s biography underscores his entrepreneurial empire, where his projected 2026 net worth could climb to $839 billion amid Tesla and SpaceX surges.

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