MacKenzie Bezos

Net Worth: $57.5 billion
Company: Amazon
Country: USA
Mackenzie Bezos, now Scott, is a novelist and philanthropist who had a hand in founding Amazon. She was married once to Jeff Bezos. They met while she was still working as his assistant at DE Shaw, an investment firm, in 1992. The couple dated for three months and married thereafter. They were blessed with four children. Their high-profile separation in 2019 left MacKenzie with $35.6 billion in Amazon stocks, making her the third wealthiest woman in the world during that time.

She reverted to her maiden name, Tuttle, before finally going with Scott, derived from her middle name. Scott also signed the Giving Pledge, promising that she would give away most of her wealth when she passes or over the course of her life. It is non-binding, but it is a good move, considering that many people will benefit from her donations. So far, she has given away $5.8 billion, the biggest annual donation by a private person.