• Strengthening of ESI Group’s Vibro-Acoustics software
• Substantial benefits to ESI and Comet Technology Corporation’s combined customer base.

PARIS — (BUSINESS WIRE) — April 26, 2011 — The IP of Comet Technology is the result of over 20 years of continual research and development. The Comet solver originated in the advanced consulting group of Automated Analysis Corporation. Under the technical leadership of industry veteran Dr. Ravi Raveendra, Comet established a global user base that includes many of the world’s top companies, universities and research institutes. The low frequency Boundary Element solvers developed by Comet Technology (CTC) contain many unique features resulting from contract research programs with NASA, other US government agencies, and the automotive industry. These solvers are a central part of the acquisition and complement the existing solvers in ESI Group’s vibro-acoustics software VA One and multi-domain virtual testing software Virtual Performance Solution.

“We are pleased to announce our collaboration with ESI Group on the integration of Comet Technology IP and vibro-acoustic modeling technologies,” said Dr. Ravi Raveendra, President, Comet Technology Corporation. “The acquisition will enable us to work together on the development of the next generation of vibro-acoustic solvers.”

With over 25 years of experience in the development of Boundary Element Methods (BEM), Dr. Raveendra further strengthens ESI’s global vibro-acoustic research and development team.

“We are looking forward to working closely with Ravi and Comet Technology’s R&D team,” said Dr. Phil Shorter, Director of Vibro-Acoustic Product Operations at ESI Group. “The integration of Comet further strengthens our Vibro-Acoustics solutions and will benefit our combined customer base”.

For more information on ESI’s vibro-acoustics solutions, visit: www.esi-group.com/VAOne; for Virtual Performance Solution, visit: www.esi-group.com/virtual-performance-solution.

About ESI

ESI is a pioneer and world-leading provider in virtual prototyping that take into account the physics of materials. ESI has developed an extensive suite of coherent, industry-oriented applications to realistically simulate a product’s behavior during testing, to fine-tune manufacturing processes in accordance with desired product performance, and to evaluate the environment’s impact on performance. ESI’s solutions fit into a single collaborative and open environment for End-to-End Virtual Prototyping, thus eliminating the need for physical prototypes during product development. The company employs over 800 high-level specialists worldwide covering more than 30 countries. ESI Group is listed in compartment C of NYSE Euronext Paris. For further information, visit www.esi-group.com/.

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