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Mike Cannon-Brookes
Software
Rank 2017
71=
Worth
£1,726m
Rise/fall
£820m

Cannon-Brookes, 37, co-founded Australian software company Atlassian in 2002 with business partner Scott Farquhar (qv), having met at university. The pair, who are joint chief executives, moved to a Mayfair base for their growing business, which specialises in project-tracking and workflow-management software. After a Nasdaq float in December 2015 the operation is valued at £4.76bn, with US-born Cannon-Brookes retaining a 37% stake worth £1.726bn. His wife Annie is a fashion designer.

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