Sheryl Sandberg

COO, Facebook

Rank on list: 22

Net worth: $1.8 billion

Source of wealth: Facebook

Citizenship: U.S.

As Chief Operating Officer at Facebook, Sandberg led the social media company from a $56 million loss in 2008 to $18.5 billion in profits in 2019. Her focus on positioning Facebook as a platform for small business advertising helped increase ad revenue by 27% during 2019, to $69.7 billion. Sandberg and Zuckerberg have spent much of 2020 defending how the company policies hate speech on its platform.