Since The Interwoven Acquisition, Autonomy's Competitive Win Rate Surges

Cambridge, UK and SAN FRANCISCO – May 18, 2009 – Autonomy Corporation plc(LSE: AU. or AU.L), a global leader in infrastructure software for the enterprise, today announced that it has seen a recent surge in law firm deals, with Autonomy now powering the world’s largest law firms, including 75 of the Global 100 law firms and 10 of 10 top US law firms. An increasing number of firms are standardizing on Autonomy due to its unique ability to provide firms with the complete set of EDRM tools from one common platform, delivering more responsive and strategic services to their clients.

The smooth and quick integration of iManage WorkSite and iManage Universal Search with IDOL is redefining how Global 2000 corporations, Global 100 law firms, leading professional services firms, and government regulators discover, analyze and manage information. Since the acquisition of Interwoven, Autonomy has recently won a series of competitive conversions and new deals with some of the most prestigious law firms in the world, including Freshfields, CMS Cameron McKenna, DLA, Manatt, Phelps & Philips, White & Case, Ropes & Gray, Goodwin Proctor, Linklaters, among others.

“Autonomy is recognized as the fastest growing EDD provider to the AmLaw 200, having displaced many competitive products over recent years,”commented Anthony Bettencourt, CEO of Autonomy Interwoven.“By combining with Interwoven’s market-leading set of offerings for law firms, our momentum in the legal sector is clearly accelerating. Traditional search and document management technologies are finding it hard to compete with IDOL based IUS and Worksite products which combine Interwoven’s extensive experience and understanding of the legal market with Autonomy’s advanced Meaning Based Computing platform.”

About Autonomy iManage

Autonomy iManage is the leader in information management applications for the legal and professional services market. Building on Autonomy s advanced Meaning Based Computing platform, Autonomy iManage offers the most comprehensive suites of information management applications all on a common platform. Autonomy iManage has over a decade of experience working with law and accounting firms to understand how these professionals interact with information and their need to find, manage and process large volumes of content quickly and intuitively. Organizations from all over the world, including 75 of the top 100 global law firms, are standardizing on Autonomy iManage which uniquely spans the complete EDRM on a single technology platform, including document and email management, information governance, archiving and records management, knowledge management, policy management and eDiscovery, legal hold and review. Autonomy iManage can now link over 1,400 law firms with the data inside over 20,000 corporate clients using powerful, familiar tools, and is the only vendor to offer the ability to access and analyze corporate information in-place for a case, eliminating point solutions and the risky and costly hand-offs of data used for investigations and litigation.

Customers include corporations and law firms such as Allen & Overy, BAE Systems, Bloomberg, Citigroup, Deutsche Bank, DLA Piper, Grupo Santander, LexisNexis, Linklaters, Lloyds TSB, Merrill Lynch, Slaughter and May, UK Law Society, and White & Case. More than 400 companies OEM Autonomy technology, including Symantec, Citrix, HP, Novell, Oracle, Sybase and TIBCO. The company has offices worldwide.

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

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