Sheryl Sandberg – $1.8 Billion

Sheryl is the Chief Operating Officer for Facebook and is also the founder of LeanIn.Org, a nonprofit. She was elected to Facebook’s Board of Directors in 2012, thus becoming the first female to serve on the board.

Also in 2012, Sandberg was named in the Time 100, an annual list of the most influential people in the world. Before Facebook, she was the Vice President of Global Online Sales and Operations at Google.