15 companies that will change the world

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

Blinkx
Chandratillake wants Blinkx to become the Google of Web video by placing contextual ads inside clips.
Blinkx
CEO: Suranga Chandratillake
Disruption: Web video search and ad insertion
Disrupted: Search engines and the TV ad business

The fastest growing segment of Internet advertising is video, and Blinkx's video search engine aims to capitalize on the trend. Blinkx indexes more than 14 million hours of video available on the Web, using software that turns speech into text and counts how many times a given word pops up in a video. That allows the company to target ads to video content, putting it a step ahead of big challengers like Google and Yahoo.

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
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Most stock quote data provided by BATS. Market indices are shown in real time, except for the DJIA, which is delayed by two minutes. All times are ET. Disclaimer.

Morningstar: © 2014 Morningstar, Inc. All Rights Reserved.

Factset: FactSet Research Systems Inc. 2014. All rights reserved.

Chicago Mercantile Association: Certain market data is the property of Chicago Mercantile Exchange Inc. and its licensors. All rights reserved.

Dow Jones: The Dow Jones branded indices are proprietary to and are calculated, distributed and marketed by DJI Opco, a subsidiary of S&P Dow Jones Indices LLC and have been licensed for use to S&P Opco, LLC and CNN. Standard & Poor's and S&P are registered trademarks of Standard & Poor’s Financial Services LLC and Dow Jones is a registered trademark of Dow Jones Trademark Holdings LLC. All content of the Dow Jones branded indices © S&P Dow Jones Indices LLC 2014 and/or its affiliates.