Australian horse breeder and businessman David Hains has an estimated net worth of $2.1 billion as of April 2016 according to Forbes.

After graduating from the University of Melbourne, Hains started working as a corporate restructurer and engineer. He is known to invest in property, fixed interests, and equities. He also manages funds through his Portland House Group which is considered as the largest hedge fund manager in Australia. Portland House Group is currently based in Melbourne, Australia.

The firm, which is now run by Hains's sons, specializes in trading bonds, currencies and equities. He is known to play a vital role in restructuring several companies such as the U.S. steelmaker Wheeling-Pittsburgh.

Still based in Australia, David Hains is currently married with five children. In the late 1960s, David Hains' career as a businessman came into hiatus when he decided to focus more of his attention on playing golf.