Reliability starts with the design.
Redundant subsystems, qualification testing and flight-proven electronics support mission continuity. C3S also engineers the interface between platform and payload, so the spacecraft works as an integrated system.
C3S / SPACE TECH
A strategic investment by András SzabóHungarian engineering.
In orbit.
Satellite platforms, space electronics and complete missions. From the drawing board to an operating spacecraft.
Official website
Photograph / illustration: C3S
3–16Uin-house platform family
ESAprime-contractor experience
End-to-enddesign through operations
C3S develops and manufactures its own satellite platforms. Integration, testing and mission support connect in one place, combining small-satellite flexibility with the engineering discipline of larger spacecraft.
Small platforms can carry major science.
Radiation monitoring, onboard AI, agricultural Earth observation and stellar spectroscopy build on a shared platform heritage. New programmes extend that work into space-traffic safety and communications.
More than a plan.
Technology in flight.
All 12 programmes 
Launched · 2025.11WISDOM
Two 3U satellites separating from a 6U unit test collision avoidance under ESA NAVISP; C3S combines its platform, OWL system and integration expertise for coordinated operations in space.
Programme source ↗
Launched · 2025.11Mauve
A 16U satellite for ultraviolet and visible stellar spectroscopy brings C3S platform and instrument-integration expertise to research on stellar activity and exoplanets.
Programme source ↗
Launched · 2021.08RADCUBE
ESA’s 3U space-weather mission measures radiation and magnetic fields; C3S led the consortium and supplied a redundant, fault-tolerant platform.
Programme source ↗