Autonomy Strengthens Market-Leading Position With Top Law Firms in Continental Europe

Leading European Law Firms Standardize on Autonomy

CAMBRIDGE, England and SAN FRANCISCO, February 17, 2011 - Autonomy Corporation plc (LSE: AU. or AU.L), a global leader in
infrastructure software for the enterprise, today announced that it continues
to extend legal technology market leadership with customer wins with several
leading law firms in continental Europe. These include firms such as Wolf
Theiss in Austria, Bonelli Erede Pappalardo in Italy, Kammeradvokaten in
Denmark, Niederer Kraft & Frey in Switzerland, P+P Pollath in Germany, and
Hekkelman Advocaten & Notarissen in the Netherlands.

Autonomy iManage is the undisputed leader in the legal and professional
services markets, with 75% of the 20 largest law firms in continental Europe.
An increasing number of firms are standardizing on Autonomy iManage WorkSite
due to its unique conceptual capabilities, ease-of-use, and the ability to
provide a comprehensive set of document management tools on one common
platform. Based on Autonomy's Meaning Based Computing technology, the
Intelligent Data Operating Layer (IDOL), iManage WorkSite provides law firms
with a shared environment for storing business content, allowing them to
collaborate easily across geographical boundaries, deliver genuine ROI and
improve their service to clients.

Autonomy enjoys an extensive customer base across continental Europe,
deploying its award-winning solutions to some of the most prestigious law
firms across the continent, including Garrigues, Gide Loyrette Nouel, De
Brauw Blackstone Westbroek, Mannheimer Swartling, Bech-Bruun, Eubelius,
Vieira de Almeida, Noerr Stiefenhofer Lutz, Lenz & Staehelin and Roschier.

Today, law firms are faced with an ever-increasing pressure to
simultaneously improve client service while taking care of the bottom line,
by effectively handling the growing volume of critical, matter-centric
electronic information. Autonomy iManage addresses this challenge by
delivering a comprehensive and automated approach to organizing, finding and
governing information within the law firm. The flagship solution offers
unmatched reliability in legal information management through its
meaning-based capabilities, performance, security, scalability, and format
and language agnosticism, all delivered within easy-to-use interfaces that
mirror the way lawyers work.

"The recent surge in top European law firms standardizing on Autonomy
iManage has further cemented Autonomy's position as the de facto technology
partner in the legal sector globally," said Glenn Perachio, VP Autonomy
Protect solutions EMEA. "Through extensive experience, an understanding of
local legal markets and advanced meaning-based computing capabilities,
Autonomy is pleased to be able to offer the best value proposition to any law
firm looking to boost employee productivity, improve its client experience
and mitigate risk."

Please visit www.autonomy.com/imanage to find out more.

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, Deutsche Bank, DLA Piper, Ericsson,
FedEx, Ford, GlaxoSmithKline, Lloyds Banking Group, 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.

Autonomy Editorial Contacts:

    Maria Chotreva                       Louise Kehoe
    Autonomy (UK)                        Ogilvy PR (US)
    +44-207-1045745                      +1-415-677-2739
    maria.chotreva@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

Maria Chotreva of Autonomy (UK), +44-207-1045745, maria.chotreva at autonomy.com; or Louise Kehoe of Ogilvy PR (US) for Autonomy Corporation plc, +1-415-677-2739, louise.kehoe at ogilvypr.com; or Edward Bridges of Financial Dynamics (UK) for Autonomy Corporation plc, +44-207-831-3113, edward.bridges at fd.com; or David Vindel of The Red Consultancy (UK) for Autonomy Corporation plc, +44-207-025-6529, david.vindel at redconsultancy.com