The 10 youngest billionaires in Australia
Meet Australia's 10 youngest billionaires. New research from financial services company City Index has revealed our nation's youngest high earners.
Mining mogul Gina Rinehart's four children all occupy the top 10, while software companies Atlassian and Canva accounted for the wealth of half of the list.
Some of the top 10 were self-made, while others made their money from the family business.
See who made the list and how they earned their wealth.
10. Nigel Austin, 52
Nigel Austin, 52, made his fortune in the retail sector as the founder of Cotton On clothing and stationary group.
The entrepreneur started the now multi-national business selling acid-washed denim jackets from the boot of his car in Melbourne in 1991.
Proving retail is in his blood, Austin's late father Grant ran a publicly-traded clothing wholesale and import business, where the budding billionaire would spend school holidays working.
Austin is estimated to be worth $2.1 billion.
9. John Hancock, 47
John Hancock, 47, is the oldest child of Australia's richest citizen, Gina Rinehart.
Worth $3.1 billion, he is the beneficiary of the trust that owns a large stake in Rinehart's mining company, Hancock Prospecting.
He is also a senior advisor at Lind Partners and runs his own private investment fund.
8. Bianca Rinehart, 46
Like her brother, Bianca Rineheart is worth $3.1 billion from Hancock Prospecting.
The 46-year-old is also ranked 1676th in the world on Forbes' Billionaires Index and is number eight on the list of Australia's youngest billionaires.
Rinehart has a degree in hospitality and hotel management from Flinders University in Adelaide.
7. Cameron Adams, 43
Cameron Adams is one of the co-founders of Australian design software maker Canva.
He works at the multi-national company alongside Melanie Perkins and her husband, Cliff Obrecht.
As a self-made billionaire, Adams is worth $2.8 billion.
The ex-Googler owns an estimated nine per cent stake in Canva.
6. Scott Farquhar, 43
Scott Farquhar, 43, co-founded software company Atlassian with Mike Cannon-Brookes.
He has an estimated net worth of $17.6 billion.
The billionaire also co-founded in 2014 the fundraising company Pledge 1%, which urges companies to donate at least one per cent equity, employee time or products to charity.
Farquhar and Cannon-Brookes started Atlassian soon after graduating university.
5. Mike Cannon Brookes, 43
Cannon-Brookes is the CEO and co-founder of Atlassian.
He is worth an estimated $18 billion.
Cannon-Brookes has also acquired some of his wealth from being a stakeholder in AGL Energy and NBA's Utah Jazz.
4. Hope Welker, 37
Hope Welker, 37, is the third child of Gina Rinehart, and like her siblings, has inherited $3.1 billion from Hancock Prospecting.
She is ranked 1557th in the world on Forbes' billionaires index.
3. Cliff Obrecht, 37
Cliff Obrecht is the co-founder of software company Canva.
At 37 years old, he is worth $5.6 billion.
Both Obrecht and Perkins have an 18 per cent stake in the company but have pledged 80 per cent to go towards the Canva Foundation.
Canva was launched in Sydney in 2013 and the couple was initially met with investor skepticism due to the company's location.
However it defied any doubts and attracted 60 million users.
2. Ginia Rinehart, 36
Ginia is the youngest daughter of Gina Rinehart.
The 36-year-old is currently ranked 1545th in the world on Forbes' Billionaires Index.
The same as her siblings, Ginia has inherited $3.1 billion from her mother's mining company.
Ginia has a degree in business, majoring in Spanish.
1. Melanie Perkins, 36
Melanie Perkins is Australia's youngest billionaire.
The 36-year-old is the CEO of Canva, which she co-founded in 2013 with her husband Cliff Obrecht.
The Canva creator is estimated to be worth approximately $5.6 billion and according to Forbes is the 836th richest person in the world.