Banque Worms Standardizes on Siebel eBusiness Applications; French Investment Bank Selects Multichannel eBusiness Solution to Enhance Sales and Service, Increase Customer Satisfaction.

Business Editors/High-Tech Writers

SAN MATEO, Calif.--(BUSINESS WIRE)--Nov. 28, 2000

Siebel Systems, Inc. (Nasdaq:SEBL), the world's leading supplier of eBusiness applications software, today announced that Banque Worms, a French full-service merchant bank, has chosen Siebel eFinance, a version of Siebel eBusiness Applications tailored for the finance industry, to create a single, comprehensive customer information management system. The Siebel eBusiness solution will enable bank professionals to better understand customer needs and respond efficiently with highly personalized solutions, resulting in greater customer satisfaction.

Banque Worms is a wholly owned subsidiary of the AXA Group. With branches in Geneva and Milan, Banque Worms provides a variety of financial services, including corporate banking, investment banking, and asset management services for individuals. The bank's 15,000 customers include medium, large and multinational groups, institutional investors and high-net-worth private clients.

In 1998, Banque Worms began considering eBusiness solutions that would enable sales professionals to continue to offer personalized service, even as the number of private banking customers continued to grow. Sales representatives typically interacted with customers by phone, mail, or face-to-face, and because customer records had been maintained in local, disparate systems, sales professionals relied on frequent phone calls and emails to stay abreast of customer activity. Banque Worms executives recognized that minimal insight into customers' histories also limited opportunities to sell across service categories; the bank therefore chose to expand its eBusiness initiative to all of its divisions to more efficiently sell to, market to and support its corporate, institutional investor and private banking client base.

By standardizing on Siebel eFinance, Banque Worms will create a single, multichannel customer information management system that will enable sales and marketing teams to capture customer interactions and work seamlessly across multiple channels -- whether phone, fax, Web, or in-person. Sales professionals will be able to share vital customer data, and collaborate efficiently to respond to national and foreign customers without delays. Marketing representatives will be able to gain insight into customer preferences and target promotions accurately, as well as monitor results and adjust campaigns to improve response rates.

In addition, Siebel eFinance will provide Banque Worms sales representatives a comprehensive view of each customer across product lines. This comprehensive customer view will enable sales professionals to cross-sell and up-sell products appropriate to individual customers' financial goals and existing portfolios, ensuring personalized service and increasing customer satisfaction.

"Banque Worms' highly customized service has spurred the growth of our private banking division, and we sought to extend that hallmark service to our corporate and investment banking customer base. We found Siebel Systems' commitment to customer satisfaction both compelling and valuable, and were further persuaded by Siebel Systems' extraordinary reputation for 100 percent customer satisfaction among global companies," said Frederic de Pelleport, assistant general manager of Banque Worms.

"Furthermore, Banque Worms' evaluation of a range of eBusiness products revealed that Siebel eFinance's robust, flexible technology surpassed the capabilities of other solutions developed for French banks to capture customer interactions across product lines. We anticipate that our implementation will not only improve our response to customers' needs, but also increase our productivity -- so significantly that we expect to recoup our investment in just 30 months," said de Pelleport.

About Siebel Systems

Siebel Systems, Inc. (Nasdaq:SEBL) is the world's leading provider of eBusiness applications software. Siebel Systems provides an integrated family of eBusiness applications software enabling multichannel sales, marketing and customer service systems to be deployed over the Web, call centers, field, reseller channels, retail and dealer networks. Siebel Systems' sales and service facilities are located in more than 28 countries. For more information, please visit Siebel Systems' Web site at www.Siebel.com.

Except for the historical information contained herein, this press release contains forward-looking statements that involve risk or uncertainties. Future operating results of Siebel Systems may differ from the results discussed or forecasted in the forward-looking statements due to factors that include, but are not limited to, risks associated with customer relations, such as the availability of Siebel Systems' products and services, customer implementation of products and services, relationships with third-party vendors and systems integrators, concentration of revenues in a relatively small number of customers, existence of errors or defects in products, ability to successfully manage growth, significant current and expected additional competition and the need to continue to expand product distribution and services offerings. Further information on potential factors that could affect the financial results of Siebel Systems are included in Siebel Systems' Annual Report on Form 10-K for the year ended Dec. 31, 1999 and its other filings with the Securities and Exchange Commission.

Note to Editors: Siebel is a trademark of Siebel Systems, Inc. and may be registered in certain jurisdictions. All other product and company names mentioned are the property of their respective owners and are mentioned for identification purposes only.