CAMBRIDGE, England and SAN FRANCISCO, November 23, 2010 /PRNewswire/ -- Autonomy Corporation plc , a global leader in infrastructure software for the enterprise, today announced that Autonomy received the highest ranking in Ovum's 2010 Decision Matrix for Enterprise Search and Retrieval (ESR). The report evaluated twelve vendors including Endeca, Exalead, Google, IBM, Microsoft, Oracle, Recommind, and Vivisimo, and named Autonomy the clear leader in the ESR market.

The Ovum report, which states "the ESR market is growing at a rapid pace," says the following about Autonomy:

"Autonomy is the clear leader of the ESR market and is an automatic shortlist into any vendor selection exercise ... it is a natural fit for organizations that are looking at ESR from a strategic perspective."

"The vendor is an order of magnitude larger than most other peers in ESR and delivers the most sophisticated and comprehensive search functionalities among peers."

The Ovum report is another example of Autonomy's continued momentum as the clear leader in sophisticated, strategic enterprise search. As reported in Autonomy's recent Q3 2010 earnings, the company's OEM business grew by 30% year-on-year, signing twelve Intelligent Data Operating Layer (IDOL) deals in the most recent quarter. Autonomy also secured 20 transactions with customers over $1 million in Q3 2010. Both metrics point to the powerful "network effect" of Autonomy's sophisticated search technology - as high-technology companies and customers alike are increasingly turning to Autonomy to power, promote, and protect their products and their organizations - further strengthening Autonomy's position as the market-leader in high-end search.

"We are pleased to see that Ovum has recognized the transition from the days of legacy keyword search to a new era of meaning-based technologies in its report," said Mike Lynch, CEO of Autonomy.

Please visit http://www.autonomy.com for a complimentary copy of Ovum's 2010 Decision Matrix for Enterprise Search and Retrieval report.

About Autonomy

Autonomy Corporation plc , 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, Deutsche Bank, DLA Piper, Ericsson, FedEx, Ford, GlaxoSmithKline, Lloyds Banking Group, NASA, Nestlé, 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.

Autonomy Editorial Contacts: Randy Cairns Louise Kehoe Autonomy (US) Ogilvy PR (US) +1-408-953-7111 +1-415-677-2739 Randy.cairns@autonomy.com louise.kehoe@ogilvypr.com Edward Bridges David Vindel Financial Dynamics (UK) The Red Consultancy (UK) +44-207-831-3113 +44-207-025-6529 edward.bridges@fd.com david.vindel@redconsultancy.com

SOURCE: Autonomy Corporation plc

CONTACT: Randy Cairns, Autonomy (US), +1-408-953-7111,Randy.cairns@autonomy.com; or Louise Kehoe, Ogilvy PR (US),+1-415-677-2739, louise.kehoe@ogilvypr.com; or Edward Bridges of FinancialDynamics (UK), +44-207-831-3113, edward.bridges@fd.com; or David Vindel ofThe Red Consultancy (UK), +44-207-025-6529,david.vindel@redconsultancy.com, all for Autonomy Corporation plc