INFORMATICA RANKED AMONG TOP 15 IN DM REVIEW 100

REDWOOD CITY, Calif., October 28, 2003 - Informatica Corporation (NASDAQ: INFA), a leading provider of data integration and business intelligence software, today announced that DM Review has named Informatica one of the top vendors in the DM Review 100, the magazine's annual list of the best business intelligence and data integration companies. This year Informatica was ranked number 14 out of 100 companies.

“Informatica is very pleased to have once again been placed at the top of DM Review's business intelligence industry ranking,” said Gaurav Dhillon, president and CEO of Informatica. “The continued endorsement by DM Review readers of Informatica among the upper echelon of technology companies - including IBM, Oracle and Microsoft - highlights our data integration leadership, as well as the innovation of our data integration and business intelligence software and our superior partner and customer ecosystem.”

“Data integration and business intelligence products are continuing to achieve significant business results by providing critical insight for enterprises around the world,” said Jean Schauer, editor-in-chief of DM Review. “Informatica's repeated success in the DM Review 100 demonstrates the value that our readers place on its end-to-end data integration and business intelligence software.”

In a survey, DM Review readers were asked to rate vendors based on expertise, service and support. The DM Review 100 winners were chosen using a statistical analysis process that utilized the following criteria: the number of respondents reporting use of a particular vendor in a given product category, the number of respondents assigning each rank for a given vendor in a given product category, the number of categories in which a vendor appeared, and the rating scores for overall satisfaction with expertise, service and support.

The complete list of 2003 DM Review 100 award winners can be found at http://www.dmreview.com/award_s/top100/2003

About DM Review and Thomson Media

DM Review is recognized as the premier business intelligence, business performance management and data warehousing publication. For more than a decade, DM Review has provided thought-provoking and informative editorial covering strategic solutions for business intelligence, analytics, data warehousing and CRM across all major industries. DM Review's authors and columnists are internationally recognized experts in a variety of business intelligence fields. DM Review editorial provides both business and technology perspectives regarding issues, trends and solutions of interest to corporate executives and IT managers. DM Review is published by Thomson Media (www.thomsonmedia.com), a division of The Thomson Corporation and a leading provider of information, data and software tools for professionals in the financial services and related technologies markets.

About Informatica

Informatica Corporation (NASDAQ: INFA) is a leading provider of data integration and business intelligence software. Using Informatica products, Global 2000 companies can leverage their existing information assets for enterprise insight that helps them improve business performance, increase customer profitability, streamline supply chain operations and proactively manage regulatory compliance. More than 1,800 companies worldwide rely on Informatica to meet their end-to-end needs for enterprise data integration and business intelligence. For more information, call 1.650.385.5000 (1.800.970.1179 in the U.S.), or visit the Informatica Web site at http://www.informatica.com/.

Note: Informatica is a registered trademark of Informatica Corporation in the United States and in jurisdictions throughout the world. All other company and product names may be trade names or trademarks of their respective owners.