Founder, CEO, Hara
Rank change: New
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