CAMBRIDGE, England and SAN FRANCISCO, October 28, 2010 /PRNewswire/ -- Autonomy Corporation plc , a global leader in infrastructure software for the enterprise, today announced that it has been acknowledged by the highly coveted Deloitte Technology Fast 50 awards program, which ranks the UK's 50 fastest growing technology companies based on percentage growth over five years. Autonomy received the coveted accolade due to its growth rate of 796% from 2005 to 2009, despite the global recession. Previous winners have included some of the most dynamic players in tech, biotech and digital media technology.

The program is supported by the Deloitte Technology Fast 50 initiatives, which rank high-growth technology companies by country, and is sponsored by Taylor Wessing, a leading International law firm with a focus on the industries of tomorrow, and Fidelity Growth Partners Europe, a venture and growth capital investor which backs technology entrepreneurs with aspiration for greatness.

Being one of the fastest growing companies in the UK is an impressive accomplishment, said Peter O'Donoghue, Deloitte Technology partner for the London region. With its 796% growth rate over five years, Autonomy has proven that its technology is resilient in tough economic climates and its management team has the vision and determination to grow the company under competitive conditions.

Founded in 1996 and utilizing ground breaking pattern-matching technologies borne out of research at Cambridge University, Autonomy has experienced a meteoric rise. With a market cap of $6 billion, Autonomy is now the largest software company in the UK and the second largest in Europe. At the heart of Autonomy's sustained business success lies Autonomy's unique infrastructure software platform, the Intelligent Data Operating Layer (IDOL). Its revolutionary meaning-based technology forms an understanding of all data in the enterprise, including human-friendly formats such as Web pages, emails, voice and video, to provide the most comprehensive enterprise software solutions ranging from compliance suites to marketing optimization applications, all on a single platform.

This prestigious accolade is a testament to Autonomy's exponential growth over the last few years, said Ian Black, Head of Global Operations at Autonomy. To be a FTSE 100 company, the UK's largest software company and yet one of the country's 50 fastest growing technology companies is a unique combination of achievements. We are delighted that our meaning-based technology, continuous efforts to innovate and industry-shifting vision have generated dramatic growth for Autonomy and won us a place among the Deloitte Technology Fast 50 companies.

Please visit http://www.autonomy.com to learn about Autonomy and http://www.deloitte.co.uk/Fast50/ to find out more about Deloitte Technology Fast 50.

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, 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 http://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: Assia Iossifova David Vindel Autonomy (UK) The Red Consultancy +44-1223-448000 +44-207-025-6529 assia.iossifova@autonomy.com David.vindel@redconsultancy.com Edward Bridges Louise Kehoe Financial Dynamics (UK) Ogilvy PR (US) +44-207-831-3113 +1-415-677-2739 edward.bridges@fd.com louise.kehoe@ogilvypr.com

SOURCE: Autonomy Corporation plc

CONTACT: Assia Iossifova of Autonomy (UK), +44-1223-448000,assia.iossifova@autonomy.com; or David Vindel of The Red Consultancy,+44-207-025-6529, david.vindel@redconsultancy.com; or Edward Bridges ofFinancial Dynamics (UK), +44-207-831-3113, edward.bridges@fd.com; or LouiseKehoe of Ogilvy PR (US), +1-415-677-2739, louise.kehoe@ogilvypr.com