Siebel Systems to Present at Field Service 2005

    Business Editors/High-Tech Editors
    Field Service 2005

    SAN MATEO, Calif.--(BUSINESS WIRE)--May 6, 2005--Siebel Systems, Inc. (NASDAQ:SEBL), the leading provider of customer-facing solutions, today announced that William Hou, General Manager of Siebel Service and Call Center Products, will be presenting at Field Service 2005 at 2:55 p.m. Pacific Time/5:55 p.m. Eastern Time, on Tuesday, May 10, 2005, in Scottsdale, Arizona.
    A live audio broadcast of the presentation can be accessed by calling 1-877-660-1789 from inside the U.S. or 1-517-308-9001 from outside the U.S. The audio passcode is SIEBEL.
    An archive audio broadcast of the presentation will be available by calling 1-888-566-0078 from inside the U.S. or 1-402-998-1649 from outside the U.S. The audio passcode for the replay is also SIEBEL.

    About Siebel Systems

    Siebel Systems is the world's leading provider of customer-facing solutions that deliver demonstrable business results and long-term competitive advantage. Siebel's multichannel offerings allow organizations to intelligently manage and coordinate all customer interactions across the Web, contact center, field sales/service force, branch/retail network, and indirect and partner distribution channels. Siebel solutions draw upon the company's best-in-class capabilities in customer relationship management (CRM), business intelligence, and customer data integration and can be deployed as licensed software or as a hosted service. Siebel solutions are tailored to the unique needs of 23 industries and incorporate industry-specific business processes, best practices, and business insight. They are the product of more than $2 billion in R&D investments and reflect over 11 years of experience with more than 4,000 organizations. Together with its extensive global network of alliance partners, Siebel provides the people, process, and technology expertise critical in driving business value from the deployment of customer-facing solutions. Over 3 million users worldwide in organizations of all sizes depend on Siebel solutions to deliver dramatic improvements in how they identify, acquire, retain, and serve customers. For more information, visit www.siebel.com.

    For more information on Siebel Systems solutions and services, please visit our Web site: CRM -- http://www.siebel.com/crm; OnDemand Solutions -- http://www.crmondemand.com; Industry CRM -- http://www.siebel.com/industry-crm; Call Center and Service -- http://www.siebel.com/call-center; Sales Force Automation -- http://www.siebel.com/sales-force-automation; Marketing Automation -- http://www.siebel.com/marketing-automation; Business Intelligence -- http://www.siebel.com/business-intelligence; Integration Solutions -- http://www.siebel.com/integration-solutions; CRM Services -- http://www.siebel.com/crm-services.

    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.

    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.

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CONTACT: Siebel Systems, Inc. Stacey Burbach, 480-377-3725 stacey.burbach@siebel.com

KEYWORD: CALIFORNIA ARIZONA TRACK INDUSTRY KEYWORD: HARDWARE SOFTWARE TRADESHOW ADVISORY CONFERENCE CALLS SOURCE: Siebel Systems, Inc.

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