Boeing Commercial Airplanes Selects Siebel eBusiness Applications to Manage Airplane Customer Information.

Business Editors

SAN MATEO, Calif.--(BUSINESS WIRE)--Feb. 25, 2003

Siebel Systems, Inc. (Nasdaq:SEBL), a leading provider of multichannel eBusiness applications software, today announced that The Boeing Company (NYSE:BA), the largest aerospace company in the world, has selected Siebel eBusiness Applications as an enabling technology for CRM in the Commercial Airplanes business unit.

Commercial Airplanes is implementing Siebel eBusiness Applications in its Commercial Aviation Services (CAS) division to manage information and correspondence between CAS and its customers and suppliers regarding troubleshooting, maintenance, and repair of the in-service fleet. Committed to providing an unparalleled level of service to its commercial airlines customers worldwide, CAS is implementing Siebel eBusiness Applications to improve response times and service levels by giving service representatives a more complete, detailed view of each of its customers across the enterprise. Longer term, Siebel eBusiness Applications will help CAS manage additional customer interactions, build stronger relationships with its customers, and continue to deliver world-class service while driving down the total cost of ownership. Additional capabilities are being brought online in CAS through Siebel Systems' fully integrated sales, service, marketing, and Web applications.

"Boeing is known for the excellence of its customer service. We're confident that Siebel eBusiness Applications will enhance Commercial Airplane Services' ability to manage service information for its global customers in real time," said David Schmaier, Vice President of Products for Siebel Systems.

Boeing Commercial Airplanes chose Siebel 7, the seventh major release of Siebel eBusiness Applications, based on its rich out-of-the-box functionality and its open and extensible architecture. In a business environment dependent on communications with its customers and suppliers, Siebel Systems' proven CRM solution satisfies the company's requirement for global deployment. Siebel eBusiness Applications will be integrated into the Boeing architecture, interacting with other applications and software components.

About Siebel Systems

Siebel Systems, Inc. is a leading provider of eBusiness applications software, enabling corporations to sell to, market to, and serve customers across multiple channels and lines of business. With more than 3,500 customers worldwide, Siebel Systems provides organizations with a proven set of industry-specific best practices, CRM applications, and business processes, empowering them to consistently deliver superior customer experiences and establish more profitable customer relationships. Siebel Systems' sales and service facilities are located in more than 28 countries.

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 customers, 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, Quarterly Reports on Form 10-Q and its other filings with the Securities and Exchange Commission, which are available at www.sec.gov. Siebel Systems assumes no obligation to update the information in this press release.

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.