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15 companies that will change the world

These game-changing startups are likely to upend existing industries - and spawn new entrepreneurial opportunities.

A123 Systems
David Vieau is betting that the popularity of hybrid vehicles will help charge sales of A123's lithium-ion batteries.
A123 Systems
The leading battery technology - lithium-ion - has not changed in a decade. A123 holds patents for smaller, lighter lithium-ions with significantly longer lives. A123 batteries are installed in hybrid buses worldwide and will enter consumer hybrids in 2010.

Blinkx

Raydiance

Expensr

Zipcar

MFG.com

Virgin Charter

PatientsLikeMe

Bloom Energy

Vanu

Zink

A123 Systems

Renewable Energy Group

Desktop Factory

Cree

One laptop per child
The New Disruptors video series Editor-at-Large Erick Schonfeld discovers startups with the potential to overturn existing industries or open up entirely new markets. (more)
Tomorrow's light With companies developing innovative ways to fight global warming, Cree founder John Edmond describes how LED lights are poised to change the way we see things. (more) video
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