ONE 2 ONE SELECTS INFORMATICA TO IMPROVE CUSTOMER RELATIONSHIP MANAGEMENT, MAINTAIN COMPETITIVE EDGE

U.K.’s leading digital mobile-phone operator joins more than 90 percent of Europe’s largest telcos already standardized on Informatica

PALO ALTO, Calif., June 5, 2000 -- Informatica Corporation (NASDAQ: INFA) today announced that One 2 One, the leading digital mobile-phone operator in the U.K. recently purchased by Deutsche Telekom, has selected Informatica PowerCenter™ enterprise data-integration software to help further improve customer relationship management (CRM) and maintain its edge in the competitive telecommunications market by consolidating customer-care, demographic and billing data for strategic analysis. Informatica is already the analytic platform of choice for more than 90 percent of Europe’s leading telcos, including BT Telecom, Dutchtone, France Telecom, Iceland Telecom, Grupo Optimus, Sonera, Swisscom, Telenor, Telia, Mannesmann Arcor, Mobilix, Optimus, Scottish Telecom and Viag Interkom.

Using Informatica’s PowerCenter, One 2 One plans to consolidate information surrounding its five million customers from numerous systems across the company, including data generated by more than 180 million calls placed across its network each week. By analyzing this wealth of data, One 2 One plans to streamline its customer marketing campaigns, reduce operating costs, enhance cross-selling opportunities and deliver more personalized customer service.

Informatica’s PowerCenter is an enterprise data-integration hub that enables large organizations to easily transform Web, legacy, relational and ERP data into reliable information for strategic business analysis.

The One 2 One service covers more than 98 percent of Great Britain’s population as well as 80 territories on five continents through roaming agreements with 160 operators. One 2 One’s customer base as of March 31, 2000 totaled 5,018,000, representing an 18.5 percent market share. The sale of the One 2 One partnership by Cable and Wireless plc and MediaOne International to Deutsche Telekom was completed on October 1, 1999. Deutsche Telekom, with preliminary revenues of Euros 35.5 billion in 1999, is Europe’s largest telecommunications company and the third-largest carrier worldwide.

About Informatica

Informatica is a leading provider of e-business analytic solutions, including the industry's most powerful enterprise data-integration software platform and analytic applications that help companies evaluate their performance across the entire e-business value chain. Many of the world's largest companies rely on Informatica to integrate data from systems across their extended enterprises for analysis in order to grow their business. Informatica currently maintains more than 750 customers across all industries, including Merrill Lynch, 3Com, Autodesk, Chevron, Delta Air Lines, Met Life, Mutual of Omaha, Barnesandnoble.com, eBay, Netscape, CNET, Inktomi, Preview Travel, Priceline.com, Sprint, MCI WorldCom, Deutsche Bank, UBS, Zurich Insurance and Polo Ralph Lauren. For more information, call 800.970.1179, or visit Informatica's Web site at http://www.informatica.com/.

NOTE: Informatica, PowerCenter and PowerMart are trademarks or registered trademarks of Informatica Corporation. All other company and product names may be trademarks of their respective owners.

Media Contacts:

Samantha Moore
Informatica Corporation
(650) 687-6361
smoore@informatica.com

Lisa Wilson
VisiTech PR
(303) 766-5265
mailto:lisa@visitechpr.com