Scott Farquhar
Rank 2017

Farquhar, 37, is unpacking boxes at Australia's most expensive house. He bought the harbourside property in Sydney, his hometown, two weeks ago for £43m. Farquhar and business partner Mike Cannon-Brookes (qv) met at New South Wales University and in 2002 founded software enterprise Atlassian, financing it on a credit card. Their workflow-management products such as Jira are now used by more than 60,000 companies worldwide, including Facebook and Citigroup. The pair, who run Atlassian between them, moved to London and in late 2015 floated the business on New York's Nasdaq. Farquhar's 37% stake in the £4.76bn operation is valued at £1.726bn.

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