Complex systems and small satellites
When New Trends Meet the Traditional Satellite Industry
C3S LLC stands out in the space industry by simultaneously representing NewSpace trends and the traditional large satellite sector. Over the past decade, the company has successfully integrated into the supply chains of major industry players as well as emerging NewSpace actors. This unique position allows the company to deliver unparalleled reliability and longevity for its clients’ space assets while offering innovative solutions that meet the high demands of both segments.
With a 100% mission success rate, we have earned a solid position in the European market, becoming an indispensable player among global CubeSat developers. We believe every mission can be accomplished — and we build our systems accordingly.
KEY PRODUCTS
C3S SERVICES

End to End Solutions
From concept to orbit, we provide end-to-end mission support, including mission planning, platform design and manufacturing, integration and testing, launch management, and satellite operations to ensure mission success. Our capabilities include in-house integration, verification, and environmental qualification, supported by space-proven electronics and flexible payload accommodation.

Launch Management
We provide launch opportunities, arrange launch deployment, and oversee the management, supervision, and coordination of technical interfaces, equipment, and documentation required for launch acceptance. Launch vehicle integration involves the final flight preparation, satellite checkout, and integration with the launch vehicle at the launch site.

Mission Operation Center
C3S MOC is a comprehensive system for managing satellites and tracking stations, handling TC/TM data, offering customizable interfaces for third-party connections, and providing an integrated on-site satellite testing solution. Track and command satellites from launch until deorbiting.

Ground Operation
Our UHF and VHF ground stations ensure low-latency connection to orbiting small satellites, facilitate reliable tracking, offers stable communication, and enables fast data processing. Our 3m parabolic dish antenna features an advanced antenna feed with an integrated low-noise block for S-band downlink with circular polarization.
NEWS
Bye-bye RADCUBE, hello RADCUBE!
One year ago, on a starlit August night, with tearful eyes we watched the launch of RADCUBE. Since then, our 3U satellite has orbited the Earth more than 5 000 times and delivered exciting information about space weather and magnetic field. Thank you EK, ICL,...
Find a GRASSHOPPER on the picture!
There is no milestone our GRASSHOPPER wouldn’t leap. We proudly post that together with ESA and Thales Alenia Space we closed the GRASSHOPPER’s Design Review, so now, before jumping to TRL5, we can concentrate on the climate chamber measurement and thermal simulation...
RadCube mission’s commissioning phase has come to an end and the satellite keeps on fulfilling its duties!
Since it has been set to LEO on 17 August 2021, RadCube operates well. On the platform developed by C3S LLC, every operation went according to the plans: solar wings have opened, the boom has been deployed, and at the end of the multistep commissioning phase, RadMag...


