Alexandra Andresen – $1.4 Billion
Alexandra was named the world’s youngest billionaire in 2016 by Forbes as at the age of 19, she held this title across both genders. She managed to hold this title on the Forbes list for three consecutive years. Her father is Johan H. Andresen Jr., owner of the finance and real estate business, Ferd AS. After running the business for years, her father decided to transfer a total of 80% of the shares to Alexandra and her sister, Katharina.

Alexandra Andresen 1 Point 4 Billion Dollars
Perenna Kei – $1.3 Billion
Perenna knew from the get-go how to keep her wealth growing when she decided to work for her father, Ji Haipeng, CEO and chairman of Logan Property Holdings. She initially joined the company and worked as a non-executive director which blossomed into her now owning an estimated 85% stake. In 2014 when she was just 24 years old, she earned the title of the youngest billionaire in the world. Thanks to the way the company was structured which saw her being the main shareholder.

Perenna Kei 1 Point 3 Billion Dollars