Cambridge, UK and SAN FRANCISCO — August 11, 2009 — Autonomy Corporation plc (LSE: AU. or AU.L), a global leader in infrastructure software for the enterprise, today announced that ZipRealty, Inc., a leading real estate company in the United States, has generated a significant increase in sales leads and customer engagements after the deployment of Autonomy Optimost’s Multivariable Testing (MVT) solution.

Founded in 1999, ZipRealty provides home sellers and buyers with an innovative real estate solution. The company’s website, www.ziprealty.com, streamlines the real estate process and as a result, they are able to pass significant savings on to their clients. ZipRealty’s marketers use the Autonomy Optimost solution to automatically identify the most compelling combination of web content and design by exposing different combinations of online content elements to different visitors and then measuring visitors’ actions.

With Autonomy Optimost, all content types including text, pictures, video, page layout, email, banners, Flash and AJAX, can be analysed and optimised. ZipRealty’s marketing team can then deploy, and continuously improve, the most effective website content to subsequent visitors, resulting in increased online conversion rates and revenues. Autonomy Optimost’s powerful technology is already paying off for ZipRealty. Since the deployment of the Autonomy Optimost’s MVT solution, ZipRealty has seen a 225% increase in the number of site visitors who “make an offer” online.

“Buying or selling a home involves a great deal of knowledge and research,” said Jamie Wilson, Vice President of Product Development at ZipRealty. “We are all about creating an enjoyable, convenient, and affordable home buying and selling experience for our customers. The Autonomy Optimost solution helps us build a better web experience for them.”

“With today’s difficult macroeconomic climate and low interest rates, many home sellers are trying to find the easiest way to sell their homes at the best price, while buyers are trying to find the best deals in the market,” said Mark Wachen, Managing Director of Autonomy Optimost. “ZipRealty.com provides its customers with the depth and breadth of information that can help to make their home buying experience a seamless process. Autonomy Optimost helps ZipRealty’s marketers to automatically identify new segments of customers, recommend the most compelling content, and launch new offers and campaigns, all powered by a unique meaning-based approach. We are pleased to help ZipRealty turn more site visitors into buyers.”

Please visit http://optimost.interwoven.com/ to learn more.