Elon Musk might be the name that launches rockets and dominates headlines, but he isn’t the only brilliant mind in his family. His younger brother, Kimbal Musk, and sister, Tosca Musk, have carved out wildly impressive and distinct careers for themselves, blending entrepreneurial hustle with a profound focus on their passions.
The three primary Musk siblings—Elon, Kimbal, and Tosca—share the same ambitious drive instilled during their childhood in South Africa and have maintained an exceptionally close bond over the decades. They frequently support one another’s ventures, proving that genius certainly runs in the family.

Kimbal Musk: The Chef, The Activist, The Board Member
While Elon focuses on colonizing Mars, his younger brother, Kimbal Musk, has dedicated his life to fixing a problem right here on Earth: the food system.
Kimbal initially co-founded the web software company Zip2 with Elon in 1995, a venture they later sold for a substantial sum. Instead of diving back into tech, he chose a dramatically different path, enrolling in the French Culinary Institute in New York to pursue his passion for cooking.
His current ventures are a compelling blend of business and social mission:
The Kitchen Restaurant Group: He co-owns this popular farm-to-table restaurant group, with locations spanning Colorado, Chicago, and Austin.
Big Green: As the co-founder and chairman of this nonprofit, he has built hundreds of “Learning Gardens” in schoolyards across the United States. This initiative connects kids to real food by teaching them how to grow it.
Square Roots: This urban farming company grows food in hydroponic, indoor shipping containers, pioneering new methods for local, sustainable food production.
Despite his deep focus on food, Kimbal remains connected to the family’s tech empire. He actively sits on the boards of both Tesla, Inc., and SpaceX, confirming his continued role in the world’s most talked-about companies. Various sources estimate his net worth to be in the hundreds of millions, largely due to his significant holdings in Tesla stock.
Tosca Musk: The Filmmaker Redefining Romance
Elon’s younger sister, Tosca Musk, is an award-winning filmmaker and entrepreneur who dominates the one genre few thought a streaming empire could be built on: romance.
Tosca’s career in film spans over two decades, working as an executive producer and director on feature films, TV programs, and web content. Her first feature film, Puzzled, even had Elon Musk listed as an executive producer.
Her latest, most successful venture is:
Passionflix: She is the CEO and co-founder of this Over-The-Top (OTT) streaming platform. Tosca launched Passionflix to adapt beloved romance novels into movies and series. She directs many of the platform’s original productions, actively empowering female-driven storytelling.
The unique streaming service has been cheekily dubbed a “sexy Hallmark Channel,” categorizing its content with a “barometer of naughtiness.” Tosca is a single mother of twins, a boy and a girl, and is known for being a fierce advocate for women in both business and film. She proved her ambition by successfully raising capital for a female-driven platform that many investors initially dismissed.
While the Elon Musk siblings all possess their own unique talents—from rocketry to restaurants to romance—their mother, model and author Maye Musk, points out that they share a crucial trait: relentless confidence.
She once noted that when her children set their minds to something, they see it through. They have a family philosophy that encourages them to take risks and believe in their ideas, even when the world tells them a vision is impossible. This shared resilience, forged through a tumultuous childhood, defines the modern Musk dynasty as much as any financial success.
The ongoing achievements of Kimbal and Tosca prove they are far more than just “Elon’s brother” or “Elon’s sister”—they are formidable founders shaping their own multi-million-dollar corners of the world.
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