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37. Amit Chatterjee - Tie
Founder, CEO, Hara
Age: 38
Rank change: New
Industry: Technology

Chatterjee's Hara is a leader in the burgeoning field of environmental and energy management software. Founded two years ago, it has $20 million from weighty backers like Kleiner Perkins and clients including Coca-Cola, News Corp., and Hasbro.

NEXT: 38. Roland Fryer
Last updated October 14 2010: 1:25 PM ET
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