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Jeff Kowalsky—Getty Images
  • Age
    37
  • Title
    Co-founder and CEO
  • Company
    Square, Twitter

Despite new competition from the likes of Apple and others, Dorsey’s mobile payments darling Square continues to grow; it’s said to be raising capital at a $6 billion valuation. (A much-hyped move to the public markets, however, has reportedly been delayed). The tech star’s stock continues to rise: last year he was named to the Walt Disney Company’s board, and this summer the socially-minded St. Louis native made a pilgrimage to Ferguson, Missouri to document the racially-charged demonstrations (via Twitter, of course).

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