In 1987, David migrated from South Africa and founded Com Tech Communications, one of Australia's first specialist supplier of IT networking and communications products.

Fourteen years later, he sold the business to Dimension Data at an enterprise value of over $1 billion making him the first Australian 'unicorn'.

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In Sydney, a city obsessed by property, few know more about it that John McGrath.

He is founder, Managing Director and CEO of McGrath Estate Agents and a former director of Realestate.com.

Here he shares with Siimon how he started out, the challenges early on and his candid thoughts on the property industry.

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For 23 years, Craig has run the luxury streetwear brand Ksubi, becoming one of Australia's foremost fashion brands worn by the likes of Kylie Jenner, Ruby Rose and rapper A$AP Rocky. 

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What lessons can special forces military teach about business? Quite a few as it turns out. Hear how training for special forces intentionally tries to break your spirit, why combat is not the time for a chat over walkie-talkie and why our guest, this week, has to remain anonymous.

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Her Melbourne restaurant Stephanie's changed the local restuarant scene. Her kitchen guide The Cook's Companion was an international bestseller, and she has just published her 18th book. Hear how she changed Australia's food scene, how being a librarian helped her and why doing the little things well is important in any business.

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Jack arrived from Canada in the late 1960s and seeing the lack of fast food places in Australia, saw an opportunity. Since then, he has built his Hungry Jack's and Dominoes Pizza empire and is now worth an estimated $4.36 billion.

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Fred Schebesta is a business leader, best known for founding internet comparison site, Finder.com, he's also known as Australia's king of Crypto. Here he talks to Siimon about how to make change quickly and profitably and the sacrifices you have to make to make it big.

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A former Telstra Australia Business Woman of the Year and Entreprenuer of the year, at the age of 18, Creswell bought a small local hand-made muesli business for $1,000, where she had worked and founded her own brand, Carman's Fine Foods. Her company now exports to over 32 different countries.

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