27 of 51
26. Tim Westergren
26. Tim Westergren
Founder, Pandora

The Stanford grad created an algorithm that dissected the various musical attributes -- he calls it the "genetic code" -- of musical compositions. Launched Pandora in 2005 as an ad-driven web service that enabled music fans to aggregate thematically similar songs. Today, Pandora is the most popular radio service on the web and is accessible on more than 200 devices, from Blu-Ray players and set top boxes to smart phones and tablet computers. The latest get: Ford and Mercedes, each of which signed on to incorporate Pandora into its dashboards.


NEXT: 27. Jeffrey Bewkes
Last updated November 19 2010: 10:47 AM ET
After a month of rabid online voting you crowned your own Businessperson of the Year. More
Executives from Silicon Valley to Hollywood to Wall Street admires his savvy persistence - and his company's cool culture. The secret to the Netflix CEO's success? He never stops looking over his shoulder. More
Michael Dell was 21 when he first appeared in Fortune. Bill Gates made the cover when he was 30. Here's a look back at some of today's biggest business leaders when they were climbing the corporate ladder. More

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: © 2018 Morningstar, Inc. All Rights Reserved. Factset: FactSet Research Systems Inc. 2018. 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 2018 and/or its affiliates.