Janine Allis came up with the Boost Juice concept and became one of Australia's richest self-made women with it.

In 2015, Bridges was features in BRW magazine's list of the 30 richest self-made women in Australia.

The Young Rich List, now in its 15th year, tracks the wealth of the richest self-made Aussies aged under 40.

We researched U.S. billionaires, as well as members of Forbes' lists of the highest-paid athletes, highest-earning celebrities, 30 Under 30 and America's Richest Self-Made Women.