Telelogic Secures Additional US$4.45 Million Deal with Leading U.S. Defense Supplier

Global Provider Renews Maintenance Agreement for Telelogic DOORS®, Telelogic SYNERGY and Telelogic TAU®

MALMÖ, Sweden – December 21, 2005– Telelogic (Stockholm Exchange/TLOG), ), the leading provider of software solutions that align advanced systems and software development with business objectives, today announced that a leading U.S. defense supplier has extended its existing maintenance agreement for three of Telelogic’s core components within its Enterprise Lifecycle Management solution in a three year deal worth US$4.45 million. “The on-going commitment to Telelogic’s DOORS, Telelogic SYNERGY and Telelogic TAU by one of the world's leading defense suppliers is a powerful endorsement of our products' capabilities," said Anders Lidbeck, President and CEO of Telelogic. “The success that the corporation has had with Telelogic’s solution was a key factor in the decision."