MatrixOne to Hold Seminars on Improving the Product Development Process at Semiconductor Companies

   Half-Day Seminars in California to Discuss How PLM Solutions Can
Help Semiconductor Companies Meet New Technology Challenges and Speed
Time-to-Market for New Innovations

   MatrixOne, Inc. (NASDAQ: MONE), a leading provider of
collaborative product lifecycle management (PLM) solutions for the
value chain(TM), today announced that it will be hosting two free
half-day seminars focused on the product development challenges
specifically facing semiconductor companies. PLM solutions unify and
streamline processes across the product lifecycle, facilitating
information sharing among employees, customers, suppliers and
partners. As a result, companies are able to collaboratively develop,
build and manage products easily and cost-effectively.
   These seminars, which will feature a guest speaker from Kalypso, a
professional services firm specializing in product development, will
analyze how PLM solutions can help companies in this industry better
manage challenges like the move to 65nm design, system-on-a-chip (SOC)
development, globally dispersed design teams and the change in cycle
times brought on by increasing manufacturer and consumer demand.
   MatrixOne's Rob Shinno, director, solutions consulting; Rick
Stanton, director, high tech industry solutions; and George Schmidt,
principal solutions consultant, will review successful PLM
implementations at semiconductor companies to teach best practices
that can be applied to attendees' specific development challenges, no
matter their size or complexity. In addition, Bill Poston, founding
principal of Kalypso, will discuss the typical challenges for a
semiconductor company and how PLM can help reduce design and
development costs, leverage design expertise, improve quality and
accelerate time-to-market.
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What:       Two free half-day conferences (complimentary lunch        
            included) entitled: "Maximizing Return on Collaborative   
            Innovation"                                               
            
When/Where: Tuesday, February 28, 2006
            Biltmore Hotel and Suites
            2151 Laurelwood Road
            Santa Clara, CA  95054

            Thursday, March 2, 2006
            Embassy Suites Hotel San Diego-La Jolla
            4550 La Jolla Village Drive
            San Diego, CA  92122

Who:        Speakers from MatrixOne and Kalypso will share their
            knowledge and expertise to help design and development
            executives at semiconductor companies learn how PLM can
            help solve several of the product development challenges
            their companies are now facing, or will be facing in the
            future.   
            
To Register: Please see
http://matrixone.ed4.net/profile/61/signup.cfm?L=5765379 to register,
or contact [e-mail] with any questions.
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   About Kalypso Partners, LLC

   Kalypso is a professional services firm focused on helping clients
deliver on the promise of innovation. The people of Kalypso are
leading business professionals who combine a depth of experience in
select industries with unparalleled expertise in product and process
innovation. The firm has a comprehensive service offering designed to
address all aspects of product innovation, development, introduction,
commercialization, and lifecycle management. A flexible engagement
model delivers tailored services to meet specific client needs across
a broad range of capabilities including Management Consulting, PLM
Technology, Commercialization and Innovation Advisory Services. More
information is available at www.kalypso.com.

   About MatrixOne

   MatrixOne, Inc. (NASDAQ: MONE), 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.