AUTONOMY CORPORATION PLC

SCHEDULING OF FOURTH QUARTER 2009 RESULTS AND CONFERENCE CALL

CAMBRIDGE, England - 14 January 2010 - Autonomy Corporation plc (LSE: AU. or AU.L), a global leader in infrastructure software for the enterprise, today announced that results for the fourth quarter and year ended 31 December 2009 will be announced on Wednesday 3 February 2010. A teleconference call to discuss these results will be hosted on 3 February 2010 at 9.00am GMT. The call will be available live via webcast over the World Wide Web. To access the live webcast, investors are directed towards the investor relations section of Autonomy's website, http://www.autonomy.com. Investors should go to the website approximately 15 minutes prior to the start time of the call to register.

About Autonomy Corporation plc

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, 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.