Fastest-growing rank: 84
Fortune 1000 rank: 343

This maker of semiconductors for wired and wireless communications is in expansion mode. In the mobile market, the company has long relied on two primary customers: Nokia and Samsung. It recently announced plans to produce chips for other mobile customers in an effort to compete better against Qualcomm.

And on the networking side of the business, Broadcom recently announced plans to buy Netlogic Microsystems for $3.7 billion -- its largest acquisition ever. Netlogic makes chips for enterprise and large-scale mobile networks. The price tag was a 39% premium to Netlogic's market value, but analysts largely agreed that it makes sense for Broadcom to expand in this market.

Last updated September 14 2011: 12:41 PM ET
Join the Conversation
The full list

Fortune's annual roster of high performers reveals the promising saplings that are rising in a difficult economy.

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.