Judith Neilson

Neilson is the ex-wife of billionaire Kerr Neilson and is also a billionaire. She's reported to have her own property portfolio.

She holds a stake in international equities manager Platinum Asset Management, founded in 1994 by her former husband.

The Zimbabwe-born former graphic designer is founder and director of Sydney's White Rabbit Gallery.

The gallery showcases one of the world's biggest collections of contemporary Chinese art post-2000.

She kickstarted another Sydney art gallery and a performance space called Phoenix.