From Reality TV to Real-World Success: How Mark Sellar Built Life in Business

Most people in Australia first came across Mark Sellar when he won The Big Adventure in 2014 on Channel Seven. It was a reality TV show that placed contestants on a remote island where they faced a mix of physical tasks and problem-solving challenges. At the time, he was just 26, and he walked away with a grand prize of $1 million. For many contestants, that would have been the highlight. For Mark, it was simply the start of what became a long, steady growth in business.

Mark Sellar is one of the very few who turned a reality TV win into a launchpad! And it wasn’t for fame, it was for a real, meaningful business creation. Winning a TV show certainly didn’t make him an entrepreneur. What shaped him was what came afterward! The ideas, the risks, the speed at which he moved, and the way he kept pushing into new markets.

Starting Point: One Idea That Turned Into Momentum

Mark’s shift into business began with a simple observation. He designed a better doorstop. It was something practical, easy to install, and useful. This idea became the Fantom Doorstop, which then led to the creation of Fantom Hardware.

It started as just one product in one store in South Australia. But over time, it turned into a full hardware range that was being sold across 80 countries. The Fantom Doorstop also earned recognition through design awards like the Good Design Awards and The Design 100.

This was Mark’s first lesson in building something long-term. Taking the idea seriously, backing it properly, and moving it forward fast. Fantom Hardware was later acquired by a private investment group in 2022.

New Ideas, New Markets

Once Fantom Hardware was running smoothly, Mark didn’t stick to the same category. He tried new ideas in other industries and applied the same approach: keep the product useful, keep the execution simple, and understand what the market wants.

He launched Shader Australia, which was a compact personal beach shade. The design was functional, easy to carry, and quite different from other typical beach umbrellas. The product went viral in 2018 and generated over 130 million organic views across social media. Just like Fantom, Shader grew quickly and was acquired in 2025.

During this period, he also founded Tumbl Bear, a children’s protective hat that reduces the impact of falls. The product also earned the Mums Choice Award in the USA. All of this showed Mark’s ability to move between categories while keeping the same core approach!

Building Technology and Fitness Ventures

In 2016, Mark co-founded KuboFit. It’s a fitness booking app that allowed gyms and users to manage schedules more efficiently. The app then became the booking engine for Goodlife Gyms in Australia and was acquired by Ardent Leisure in 2018.

Years later, his interest in sport and fitness played a role again when he co-founded Drive Fitt in India. Drive Fitt combines cricket, fitness, and recovery under one model. The brand is co-founded with Preity Zinta and Shubman Gill, two well-known names in Indian cricket and entertainment.

Drive Fitt is one of Mark’s main focus areas today, and he spends a lot of time in India working with teams, partners, and local groups to build the franchise.

A Structured Approach to Global Markets

Mark’s business journey includes countries such as Australia, China, India, and the Middle East. One thing that stands out is the way he studies markets.

His work in China began through Red Giant. It’s a cross-border business that helps Australian brands enter the Chinese market through retail and e-commerce.

Since 2014, Mark has been the Chairman of Sellar Capital, a family investment company that operates in residential, commercial, industrial, and medical property sectors in Australia. Sellar Capital also invests in small and medium businesses, tech companies, and consumer brands. Sellar Capital isn’t run like a passive investment arm. Instead, Mark treats it as a long-term engine! A place where he builds, buys, and scales ideas that fit his style.

Many Western companies see India or China as “billion-person markets.” Mark studies them more closely. He looks at diversity in populations, income ranges, regional habits, and realistic customer segments. This method is one of the reasons his ventures have managed to scale internationally without unnecessary risks.

Personal Life: Work, Travel, and Family

Even with multiple businesses running across continents, Mark keeps his personal life structured and simple. He lives between Dubai and Australia, and he travels to India regularly for work.

Mark and his wife have three beautiful children, Olympia, Everly and Franklin. His family continues to shape the way Mark balances his schedule. When he isn’t working or traveling, he focuses on fitness, family time, and routines that keep his life stable.

From Television to Global Business: What Stands Out

Mark’s career doesn’t rely on inspirational speeches or dramatic turning points. The pattern is straightforward:

• See a real problem

• Build a clear solution

• Invest early

• Fix what doesn’t work

• Scale when the numbers make sense

• Repeat with the next idea

This has allowed him to build products, platforms, and franchises across so many different industries.

Winning The Big Adventure gave him a starting point. What came after that? Fantom Hardware, Shader, Tumbl Bear, KuboFit, Sellar Capital, Red Giant, and Drive Fitt! It all came from one thinking- Step in, work hard, take risks, and keep moving. 

Closing: A Career Built on Steady Growth

Mark Sellar’s efforts and journey show how far a person can go by keeping things clear and focusing on execution. For more than a decade, he has been moving through industries, markets, and ideas with the same direct approach! He understands the need, puts in the work, and acts quickly.

If business worked like a long cricket match, Mark’s strategy would be clear: play forward, stay sharp, and don’t waste overs waiting for the perfect ball. That’s how he went from a reality TV winner to building a career that spans continents and industries. All of it is possible through quick decisions, consistent work, and the willingness to keep moving.