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 it will present a webcast aimed at helping project managers in semiconductor companies learn how they can use better project planning, execution and tracking solutions to better meet today's chip design challenges and deliver new products faster. The webcast will feature a presentation by Eric Karofsky, senior research analyst for AMR Research, who will discuss the latest industry trends and best practices for speeding product development. The live webcast will take place on Thursday, September 29, 2005 at 1:00 pm ET. This MatrixOne hosted webcast will focus on solving the problems faced by semiconductor company project managers as they work to balance their responsibilities in managing globally dispersed project teams, including identifying and facilitating projects that have the greatest chance for success; getting chips out on time and on budget; eliminating costly errors; and attaining predictable results with new chip introductions. MatrixOne and AMR Research will use their industry knowledge and years of experience to show attendees how a PLM solution can help managers gain insight into all the players and systems across the chip development process, ultimately revolutionizing the way that companies manage their chip design. -0- *T What: Free webcast entitled "Using Data-Driven Project Management to Attain Predictable Results in Chip Design" When: Thursday, September 29, 2005 at 1:00 pm ET Who: Rick Stanton, director, high-tech industry solutions for MatrixOne; and Eric Karofsky, senior research analyst for AMR Research, will conduct the webcast. Where: For additional information on this event or to register, please see http://www.matrixone.com/plmlive/live.html. *T About AMR Research AMR Research provides world class research and actionable advice for executives tasked with delivering enhanced business process performance and cost savings with the aid of technology. Five thousand leaders in the Global 1000 put their trust in AMR Research's integrity, depth of industry expertise, and passion for customer service to support their most critical business initiatives, including supply chain transformation; new product introduction, customer profitability, compliance and governance, and IT benefit realization. More information is available at www.amrresearch.com. 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.