MONEE Matrixone (MM)

MatrixOne, Inc. (NASDAQ: MONEE), a leading provider of collaborative product lifecycle management (PLM) solutions for the value chain(TM), today announced that the company will host its annual Automotive Customer Conference at the Hyatt Regency in Dearborn, Michigan on Thursday, November 17, 2005. Joe Loridas, director of automotive, Americas for MatrixOne will deliver the opening keynote, "Driving Business Value with PLM Solutions in the Automotive Industry." This day-long event also includes general sessions on topics ranging from customer successes with PLM to ways to achieve greater ROI. Attendees will hear from MatrixOne customers, including Eicher Motors, Motorola Automotive, Siemens VDO and Textron. PLM break-out sessions will explore actionable solutions, and conference participants will have the opportunity to learn about MatrixOne's automotive industry products overview. Luncheon roundtables will be held to discuss a variety of compelling automotive PLM topics, such as design for regulatory compliance and managing supplier quality. "The automotive industry operates in an extremely competitive, challenging global environment, making new product introduction as a means of differentiation more important than ever," said Mike Segal, senior vice president of global sales and services for MatrixOne. "Customer success is the cornerstone at MatrixOne and our solutions unify and streamline processes across the product lifecycle to enable delivery of the right product at the right time at the right cost. The goal of the Automotive Customer Conference is to share best practices for all facets of the manufacturing process and to help our automotive customers drive value for their companies." For additional information, including the full agenda and registration form, please visit http://www.matrixone.com/matrixone/events.html About MatrixOne MatrixOne, Inc. (NASDAQ: MONEE), a leading global provider of collaborative product lifecycle management (PLM) software and services, enables companies to accelerate product innovation to achieve top line revenue growth and improve bottom line profitability. With world-class PLM solutions and a commitment to customer success, MatrixOne is focused on helping companies across the automotive, aerospace & defense, consumer, machinery, medical device, semiconductor and high-tech industries solve their most challenging new product development and introduction problems. More than 800 companies use MatrixOne's solutions to drive business value and gain a competitive advantage, including industry leaders such as BAE Systems, Bosch, Comau, General Electric, Honda, Johnson Controls, Linde AG, NCR, Nokia, Philips, Porsche, Procter & Gamble, Sony Ericsson, STMicroelectronics and Toshiba. MatrixOne (www.matrixone.com) is headquartered in Westford, Massachusetts, with locations throughout North America, Europe and Asia-Pacific. MatrixOne and the MatrixOne logo are registered trademarks and "a leading provider of collaborative product lifecycle management (PLM) solutions for the value chain" is a trademark of MatrixOne, Inc. All other trademarks and service marks are the property of their respective owners. Forward-looking statements in this release are subject to risks and uncertainties that could cause our actual results to differ materially from those anticipated. Such statements may relate, among other things, to our plans, objectives and expected financial and operating results. The risks and uncertainties that may affect forward-looking statements include, among others: poor product sales, long sales cycles, difficulty developing new products, difficulty in relationships with vendors and partners, higher risk in international operations, difficulty assimilating future acquisitions, difficulty managing rapid growth, and increased competition. For more about the risks and uncertainties of our business, see our periodic and other S.E.C. filings.