2. Sheryl Sandberg

Sheryl Sandberg is an American technology executive, activist, and author. She is the COO at Facebook and plays key part of the social media company's growth. Before joining Facebook, Sheryl was Vice President of Global Online Sales and Operations at Google, and was involved in launching Google's philanthropic arm Google.org.

In 2012, she was named in the Time 100, an annual list of the 100 most influential people in the world. Sheryl possesses a net worth of $1 billion as of January 2014 owing to her stock holdings in Facebook and other companies.

3. Dave Girouard

Dave Girouard graduated from Dartmouth College with Engineering Sciences and a B.E. in Computer Engineering. He also received an MBA from the University of Michigan with High Distinction.

Girouard managed Google's growing enterprise business worldwide and leaded a team responsible for sales, marketing, product development and customer support.

After spending eight years at Google, he left Googleplex in 2012 to launch his own start-up called Upstart, a peer-to-peer lending company.

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