Acumentum Increases Sales Revenues Using Siebel CRM OnDemand.

SAN MATEO, Calif. -- Siebel Systems' Hosted CRM Solution Helps Online Collaboration Company Increase Cross-Selling and Up-Selling of Products and Services

Siebel Systems, Inc. (Nasdaq:SEBL), a leading provider of business applications software, today announced that Acumentum, a Melbourne, Australia-based developer of online collaboration systems, has deployed Siebel CRM OnDemand to better manage client information and increase sales revenues through additional up-selling and cross-selling of products and services. Using Siebel Systems' hosted CRM solution, Acumentum is improving profitability and customer satisfaction by prioritizing service requests and monitoring and managing complex relationships across major organizations.

"Siebel CRM OnDemand is a powerful business tool providing our customer-facing employees with a single view of each current and prospective client, including a complete history of each client's interactions with our entire organization," said Russell Yardley, CEO, Acumentum. "With this knowledge, our employees can better identify and follow up on sales opportunities and provide more valuable solutions because they can better target our customers' real needs. Also, using Siebel CRM OnDemand's analytics capabilities, we can now create business reports in seconds to gain real-time insight into the quality of our sales pipeline. This enables us to more efficiently allocate resources that will ultimately help us grow the business."

Prior to deploying Siebel CRM OnDemand, Acumentum used a desktop contact management application to track customer information. However, the organization realized it needed a strategic CRM solution that offered robust sales, service, marketing, and analytics capabilities. Using Siebel Systems' hosted CRM solution, Acumentum can now segment customers and sales leads by market or size and identify opportunities to cross-sell and up-sell additional products and services.

"We build online collaboration as a part of enterprise portals for large organizations in the public sector, finance, and manufacturing industries," added Yardley. "This means we maintain large amounts of client data, which are now more secure due to the automated backup and disaster recovery capabilities of Siebel CRM OnDemand."

About Siebel CRM OnDemand

Siebel CRM OnDemand is a hosted CRM offering delivered over the Web and accessible from an Internet browser at a fixed price per user per month. Customers can deploy Siebel CRM OnDemand quickly, easily, and affordably without any up-front IT investments. Siebel CRM OnDemand delivers complete sales, marketing, and service functionality; built-in customer analytics; virtual call center technology; embedded best practices; and world-class hosting services and support. Siebel CRM OnDemand is now available for purchase. For more information, please visit www.crmondemand.com.

About Siebel Systems

Siebel Systems, Inc. is a leading provider of business applications software, enabling corporations to sell to, market to, and serve customers across multiple channels and lines of business. With more than 4,000 customer deployments worldwide, Siebel Systems provides organizations with a proven set of industry-specific best practices, CRM applications, market-leading analytics products, 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 30 countries.

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.

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