Onyx Japan Signs Reseller Agreement with NEC Nexsolutions
NEC Nexsolutions and Onyx Japan to Jointly Offer Onyx Enterprise CRM in Japan

BELLEVUE, Wash. - Onyx® Software Corp. (Nasdaq: ONXS), worldwide leader in successful CRM, today announced that its Japanese joint venture with Softbank Investment Corporation and Prime Systems Corporation, Onyx Software Co., Ltd., has signed a Reseller Agreement with NEC Nexsolutions, Ltd., in which NEC Nexsolutions will distribute Onyx Enterprise CRM in Japan.

NEC Nexsolutions is a leading system integration and IT service provider and is part of the leading IT conglomeration NEC Corporation. Under the terms of the agreement, NEC Nexsolutions will resell Onyx Enterprise CRM, as well as provide maintenance and product support to their customers in Japan.

One of the key tenets of the agreement is the bundling of Onyx Enterprise CRM with NEC Nexsolutions's computer telephony integration (CTI)/call center product line, called iView Kobo Series™. NEC Nexsolutions has recognized the demand for CRM solutions and plans to draw on its concentrated knowledge of call center businesses to promote Onyx Enterprise CRM. The joint solution allows NEC Nexsolutions and Onyx Japan to offer a product that not only automates and improves the efficiency of front-office tasks, but also more effectively manages communication with customers.

According to NEC Nexsolutions, they chose Onyx due to its customer-centric data model, leading thin-client architecture, strong audience-facing portals and successful adoption across multiple departments within an enterprise. Additionally, Onyx's web services-enabled middle-tier, industry leading scalability and ease of integration were key differentiators in NEC Nexsolutions's decision to resell Onyx Enterprise CRM.

"This agreement is a significant milestone for us in Japan and demonstrates our continued commitment to the world's second largest IT market," said Brent Frei, CEO and co-founder of Onyx Software. "We are very pleased to form an alliance with a company of NEC Nexsolutions' caliber and believe the combination of our expertise in CRM and NEC Nexsolutions' expertise in call center operations and IT services will allow us to offer a total solution geared for the needs of the Japanese market."

Onyx Enterprise CRM integrates sales, marketing, and service operations throughout an enterprise to manage the multiple dimensions of customer and partner relationships. Onyx CRM can help companies build more productive, profitable businesses by powering their ability to deliver an extraordinary customer experience. Onyx CRM is a single, unified application comprised of portals for tailoring functionality to different user communities, intuitive web interfaces for ease of navigation and a web-services platform for interoperability with other business systems. Companies large and small have successfully deployed Onyx CRM, which efficiently scales from 50 to more than 5,000 users.

About Onyx Software
Onyx Software Corp. (Nasdaq: ONXS), worldwide leader in delivering successful CRM, offers a fast, cost-effective, usable solution that shares critical information among employees, customers and partners through three role-specific, Web services-based portals. The Onyx approach delivers real-world success by aligning CRM technology with business objectives, strategies and processes. Companies rely on Onyx across multiple departments to create a superior customer experience and a profitable bottom line. Onyx serves customers worldwide in a variety of industries, including financial services, healthcare, high technology and the public sector. Customers include Agile Software Corp., Credit Suisse, Delta Dental Plans of California and Pennsylvania, Dreyfus Corp., Fluke Networks, Inc., Ingenix Health Intelligence, The Regence Group, The Seattle Mariners and Suncorp. More information can be found at 888-ASK-ONYX, or email info@onyx.com.

This press release contains forward-looking statements, including statements about the potential future success of Onyx CRM in the Japanese market. Forward-looking statements are based on the opinions and estimates of management at the time the statements are made and are subject to risks and uncertainties that could cause actual results to differ materially from those anticipated in the forward-looking statements. The words "believe," "expect," "intend," "anticipate," variations of such words, and similar expressions identify forward-looking statements, but their absence does not mean that the statement is not forward-looking. These statements are not guarantees of future performance and are subject to risks, uncertainties and assumptions that are difficult to predict. Factors that could affect Onyx's actual results include, but are not limited to, Onyx's ability to the successfully translate and license its products in Japan and the "Important Factors That May Affect Our Business, Our Results of Operations and Our Stock Price" described in our annual report on form 10-Q for the period ended September 30, 2002. Readers are cautioned not to place undue reliance upon these forward-looking statements that speak only as to the date of this release. Onyx undertakes no obligation to update publicly any forward-looking statements to reflect new information, events or circumstances after the date of this release or to reflect the occurrence of unanticipated events.

Onyx is a registered trademark of Onyx Software Corp. in the United States and other countries. Other product or service names mentioned herein are the trademarks of their respective owners.

Contact:

Bob Craig Onyx Software 617-314-6846

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MEDIA CONTACTS

Americas / Corporate Headquarters Mitch Briggs Public Relations Coordinator Consona Corporation Telephone: 317.249.1620 Mobile: 317.829.4210 Europe, Middle East, Africa Richard Furby Managing Director, Onyx UK Telephone: +44 (0) 1344 322 199 Fax: +44 (0) 1344 489 035 Japan Daisuke Sawamura Director, Professional Services Telephone: +81 03 5215 7311