Bentley Acquires KIWI Software to Deliver Complete Structural Workflow Solution

Bentley Systems, Incorporated today announced that it has acquired
all operations of KIWI Software, a leading provider of structural
modeling, detailing, and fabrication software for industrial plants,
buildings, and civil structures.

KIWI Software's flagship product line, ProSteel 3D, is a globally
recognized solution for structural steel detailing and fabrication
that supports multiple platforms, including AutoCAD, Inventor, and now
MicroStation. The total number of ProSteel 3D users exceeds 6000.
Typical applications include structural steel and steel building
construction, plant construction, conveying equipment and heavy
machinery, aluminum construction, and naval architecture.

Said Bhupinder Singh, senior vice president, Bentley Software,
"When it comes to structural engineering, Bentley has been the clear
choice for design, analysis, and construction. With this acquisition,
Bentley is also the clear choice for steel detailing and fabrication.
This is great news for users as we can now provide them with a
complete and fully integrated structural workflow solution."

Continued Singh, "I want to welcome all KIWI Software users to the
Bentley user community, and am happy to report that they include a
brand new category of user organization for Bentley - structural and
facade steel fabricators. KIWI Software has always worked closely with
its users to bring them the ease of use, flexibility, and features
they require to meet the changing demands of modern structural steel
work. Bentley will follow this same strategy as we continue to advance
the capabilities of this newest addition to our comprehensive
structural solution set."

The KIWI Software acquisition follows Bentley's acquisition in
2005 of RAM International, a leading provider of structural
engineering software for building structures made from all major
materials, and of the STAAD product line, a global leader in
structural design and analysis. It represents yet another achievement
towards Bentley's goal of leveraging the power of analysis throughout
the design workflows in building, civil, and plant lifecycles.

All KIWI Software executives and staff have joined the Bentley
organization, and sales and support will continue to be offered
through the KIWI Software channel. For more information, visit
www.kiwisoft.de/prostahl/english.

About Bentley

Bentley Systems, Incorporated provides software for the lifecycle
of the world's infrastructure. The company's comprehensive portfolio
for the building, plant, civil, and geospatial verticals spans
architecture, engineering, construction (AEC) and operations. With
revenues now surpassing $400 million annually, and more than 2000
colleagues around the world, Bentley is the leading provider of AEC
software to the Engineering News-Record Top 500 Design Firms and major
owner-operators and was named the world's No. 2 provider of
GIS/geospatial software solutions in a recent Daratech research study.

To receive Bentley press releases as they are issued, visit
www.bentley.com/bentleywire. For more information, visit
www.bentley.com. To view a copy of Bentley's May 2006 Annual Report
online, go to www.bentley.com/May2006annualreport.

Bentley, the "B" logo, KIWI Software, MicroStation, ProSteel 3D,
and STAAD are either registered or unregistered trademarks or service
marks of Bentley Systems, Incorporated or one of its direct or
indirect wholly-owned subsidiaries. Other brands and product names are
trademarks of their respective owners.