Airbus Defence and Space and Unseenlabs have been selected to develop France’s next generation of military signals intelligence satellites under the CASSIOPÉE programme.
Announced on 11 September 2026, the contract was awarded by France’s Directorate-General for Armament (DGA), with Airbus acting as lead contractor and Unseenlabs as co-contractor.
The programme will renew France’s space-based signals intelligence capability, supporting military surveillance, strategic monitoring and independent defence decision-making.
Developing military signals intelligence satellites
Airbus will act as system integrator and provide satellite technology based on its S250 platform, alongside ground infrastructure and control centre capabilities. Unseenlabs will contribute specialist expertise in mission planning, onboard and ground-based data processing, and signals intelligence payload technology.
Signals intelligence, commonly referred to as SIGINT, involves detecting and analysing electromagnetic transmissions, including radar and telecommunications emissions.
Space-based SIGINT systems can help identify, characterise and monitor transmitters of military interest across geographically dispersed areas.
The CASSIOPÉE constellation is scheduled to replace France’s existing CERES satellites by 2032, maintaining the country’s space-based intelligence capability while introducing improvements in technical performance and responsiveness.
Strengthening European defence intelligence
CASSIOPÉE forms part of France’s wider CELESTE space electromagnetic intelligence programme. The investment reflects the importance of sovereign intelligence collection capabilities in modern military operations.
For defence planners, satellite-based intelligence offers a means of monitoring strategically important regions without depending exclusively on airborne or ground-based surveillance assets.
The programme also demonstrates the role of cooperation between established aerospace manufacturers and specialist technology companies.
Integrating satellites, intelligence payloads, ground stations and processing systems presents technical and procurement challenges that extend beyond manufacturing individual spacecraft.
For defence buyers and systems integrators, CASSIOPÉE highlights demand for secure data processing, interoperable infrastructure and dependable space-based surveillance capabilities.
Its planned introduction will support France’s longer-term requirement to retain independent access to strategic electromagnetic intelligence.
