CS Communication & SystÃ¨mes SA engages in the design, integration, and operation of critical communication and information systems. The company operates through the following segments: Defense, Homeland Security, Space, Aeronautics, Energy & Industry, and Transportation. The Homeland Security segment engages in security and protection for infrastructures and sensitive sites. The Space segment engage in space applications and sytems. The Aeronautics segment designs and develops embedded real-time critical software and supports clients throughout the life cycle of the systems from digital design to maintenance, while responding to competitiveness and cost optimization requirements. The Energie & Industries segment provides industries performance and risk management services. The Transportation segment provides passenger information, operational support, mobility, secure systems. It also include nuclear risk management, and industrial computing. The company was founded on December 13, 1968 and is headquartered in Le Plessis Robinson, France.