Legrand Speeds Product Development with MatrixOne PLM

   Leader in Products and Systems for Electrical Installations and
Information Networks Deploys MatrixOne PLM Platform Globally; Allows
Dispersed Teams to Effectively Collaborate on Product Development
Efforts

   MatrixOne, Inc. (NASDAQ: MONEE), a leading provider of
collaborative product lifecycle management (PLM) solutions for the
value chain(TM), today announced that the Legrand Group, the world
specialist in products and systems for electrical installations and
information networks, has selected the MatrixOne PLM platform as the
cornerstone of its product development environment. To be deployed
throughout the Legrand Group, the MatrixOne solution will enable the
Group's international product development teams to access, organize
and share critical new product development information in real-time.
   The decision to select the MatrixOne PLM platform was driven by a
number of factors including Legrand's requirements for scalability,
collaboration, ease-of-use and personalization.
   "The MatrixOne solution is extremely user-friendly, with a much
more natural man/machine interface than our previous solution," said
Jean-Paul Chanal, the PDM project manager for Legrand. "Its
ease-of-use is an important point worth highlighting, as we are now
able to share data via our intranet across all the sites of the Group,
using a standard IT architecture. Another decisive criterion was the
high level of personalization possible. We need a solution that can
adapt to the company's requirements, and MatrixOne delivers that
flexibility. We now have the capacity internally to execute specific
settings and configurations as required."
   "The MatrixOne platform saves us an enormous amount of time at the
design and concept stages," continues Chanal. "Not only because of the
ease of use, but also thanks to the reliable distribution of product
data to our global teams. The fact that everyone has access to the
most recent version makes file management much less time-consuming and
labour-intensive. Furthermore, by integrating our mechanical and
electronic CAO solutions, we can synchronize product design across
engineering disciplines. The whole product development process thereby
becomes more efficient and less costly--and we reduce our
time-to-market. That is the real added value of the MatrixOne
solution."
   "By deploying the MatrixOne platform, Legrand is enabling its
geographically dispersed work teams to collaborate better and stay
connected through access to real-time information," said Henri
Carasso, General Manager for MatrixOne Southern Europe. "This
eliminates communication barriers and drives faster decision-making,
delivering higher levels of quality and innovation, and ultimately
giving Legrand a competitive advantage over other players in the
market."

   About Legrand

   Legrand is the world specialist in products and systems for
electrical installations and information networks used in residential
and commercial buildings and in industry. Its catalogues feature over
130,000 products and it operates in more than 60 countries, employing
26,000 people.

   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.