Ali and Hadi Partovi
Ali and Hadi Partovi
Hardi Partovi

The two Dropbox founders say that they had plenty to learn from twin brothers Ali and Hadi Partovi, early investors in Dropbox and co-founders of a social media service company called iLike, which was later acquired by MySpace. Besides the Partovi brothers, Houston and Ferdowsi said they look at examples of leadership at tech companies across the board. "There are a lot of companies that got off to a great start and then blew it," they said, "so we try to look at that too."

Last updated October 24 2011: 2:41 PM ET
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