CAMBRIDGE, England, and SAN FRANCISCO: Autonomy Corporation plc, a global leader in infrastructure software for the enterprise, today announced that Software Magazine named Autonomy one of the 10 fastest-growing companies in the $100 million to $1 billion revenue category, as part of the publication's annual ranking of the world's 500 largest software and services companies. Autonomy generated total revenue of $739.7 million and an exceptional 47% growth rate in 2009.

The Software 500 is a revenue-based ranking of the world's largest software and services suppliers targeting medium to large enterprises, their IT professionals, software developers and business managers involved in software and services purchasing. The ranking is based on total worldwide software and services revenue for 2009. This includes revenues from software licenses, maintenance and support, training and software-related services and consulting. The Software 500 is currently featured on the publication's web site, www.softwaremag.com.

"The growth of unstructured information -- in the form of email, video, audio, web, and social media, and other content -- knows no boundaries," said Stouffer Egan, CEO of Autonomy – US. "Autonomy's phenomenal growth is due to the fact that we uniquely understand the meaning within this human friendly information, and we capitalize on this powerful differentiator by providing our global customer base with a comprehensive platform to power, promote, and protect their business."

About Digital Software Magazine, the Software Decision Journal, and Softwaremag.com

Digital Software Magazine, the Software Decision Journal, has been a brand name in the high-tech industry for 30 years. Softwaremag.com, its Web counterpart, is the online catalog to enterprise software and the home of the Software 500 ranking of the world's largest software and services companies. Software Magazine and Softwaremag.com are owned and operated by King Content Co.

About Autonomy

Autonomy Corporation plc (LSE: AU. or AU.L), a global leader in infrastructure software for the enterprise, spearheads the Meaning Based Computing movement. IDC recently recognized Autonomy as having the largest market share and fastest growth in the worldwide search and discovery market. Autonomy's technology allows computers to harness the full richness of human information, forming a conceptual and contextual understanding of any piece of electronic data, including unstructured information, such as text, email, web pages, voice, or video. Autonomy's software powers the full spectrum of mission-critical enterprise applications including pan-enterprise search, customer interaction solutions, information governance, end-to-end eDiscovery, records management, archiving, business process management, web content management, web optimization, rich media management and video and audio analysis.

Autonomy's customer base is comprised of more than 20,000 global companies, law firms and federal agencies including: AOL, BAE Systems, BBC, Bloomberg, Boeing, Citigroup, Coca Cola, Daimler AG, Deutsche Bank, DLA Piper, Ericsson, FedEx, Ford, GlaxoSmithKline, Lloyds TSB, NASA, Nestle, the New York Stock Exchange, Reuters, Shell, Tesco, T-Mobile, the U.S. Department of Energy, the U.S. Department of Homeland Security and the U.S. Securities and Exchange Commission. More than 400 companies OEM Autonomy technology, including Symantec, Citrix, HP, Novell, Oracle, Sybase and TIBCO. The company has offices worldwide. Please visit www.autonomy.com to find out more.

Autonomy and the Autonomy logo are registered trademarks or trademarks of Autonomy Corporation plc. All other trademarks are the property of their respective owners.

SOURCE Autonomy Corporation plc