Co-operative Insurance Society Standardizes on Siebel eBusiness Applications.

Business Editors/Technology Writers

SAN MATEO, Calif.--(BUSINESS WIRE)--Aug. 9, 2000

Leading UK Insurer Unites Sales, Service and Marketing Functions to

Enhance Customer Service and Satisfaction

Siebel Systems, Inc. (Nasdaq: SEBL), the world's leading supplier of eBusiness application software, today announced that Co-operative Insurance Society (CIS), a leading UK insurer, will standardize its customer-facing operations on Siebel eBusiness Applications. CIS selected Siebel eFinance to create a single, comprehensive customer information management system, enabling CIS to respond more efficiently to queries and offer products targeted to the needs of individual customers, to provide greater customer satisfaction.

Established in 1867 to offer coverage for co-operative enterprises, CIS now provides more than 4.5 million customers in the UK with comprehensive financial planning services. CIS continues to distinguish itself by the co-operative principles on which it was founded, returning the benefits of the Society's performance to its policyholders. The Society is the only UK insurance company that has established and integrated principles of "Social Accountability" into its business practices, including criteria for performance assessment of its 5,500 representatives.

Siebel eBusiness Applications will enable CIS to compile customer data in a single, comprehensive customer information management system, and create customer histories from the first point of contact which can be accessed by all customer-facing staff to provide seamless customer service. In turn, customers will have the flexibility to select from multiple communication channels -- including telephone, email, Web, fax or face-to-face interview with their representative -- with confidence that any service professional will be fully informed of their latest contact with the company. Siebel eFinance specifically will allow all CIS representatives to access a customer's multiple financial product holdings within a single system, and respond more efficiently and accurately to customer requests. CIS marketing teams will be able to access customer information and develop direct mail and advertising campaigns that are totally relevant to their intended audiences. And as customer needs develop, representatives will be able to review their customers' histories to anticipate their future requirements, offer the most appropriate products and ensure ever increasing customer satisfaction.

"Siebel Systems' global reputation for 100 percent customer satisfaction made it clear that Siebel eBusiness Applications can help CIS enhance our own longstanding commitment to our customers," said Charles McKeown, General Manager, CIS. "Furthermore, our assessment determined that Siebel eFinance's robust technology platform and functionality specific to our industry will enable CIS to deploy the solution very quickly. We expect to gain even better understanding of our customers company-wide, which will allow CIS to further personalize service."

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 application 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 December 31, 1999 and its other filings with the Securities and Exchange Commission.

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.