The private sector’s enthusiasm for space continues to boost the sector and could democratise new applications (space travel, satellite imagery, internet via satellite, data processing, etc.).

The current geopolitical context favours a real militarisation of space.

After the success of the American New Space (Space X, Blue Origin, etc.), it is now Europe’s turn to encourage the development of the private sector. Partnerships are increasing between the ESA, large companies and start‑ups, such as Airbus D&S and Preligens.

At the same time, the space industry is accompanying states in the weaponization of the cosmos, in the form of anti‑satellite weapons for instance.

Space mechanics: meet ALTEN’s teams!

Our engineers invite you with passion to enter their world and discover:

  • Their professions: architecture, design, detailed analyses, integration, tests…
  • Their fields of application: satellites, orbital infrastructures, launchers, rovers…

They even make a stop at Phobos, an enigmatic Martian moon, to give you a glimpse behind the scenes of a flagship CNES project in which ALTEN is involved: the MMX rover!

Fasten your seatbelts, imminent departure for space!

Functional sectors

covered by ALTEN

Space launcher

Space launcher



Ground segment

Ground segment

Our Success Stories

Modular, flexible and competitive, the new European launcher is intended to provide the best launch solution to businesses and institutions by 2023. As a historical partner of aerospace manufacturers, ALTEN actively participates in their development in various fields (structure, thermal, flight mechanical engineering, etc.).

ALTEN capitalises on more than 20 years of know-how in preparations for the assembly, validation tests and final integration (before launch) of various satellites for CNES and other industrial customers.

To provide very-high-speed internet to everyone, especially in areas difficult to reach for the terrestrial network, there is a project to launch a constellation of more than 600 mini-satellites in a low orbit whose commissioning started early 2022. ALTEN is working on the mechanical design and thermal calculations for these telecommunications mini-satellites.

There are many fields of application for Earth observation such as the environment, defence, geology, climatology, telecommunications, and IoT objects. ALTEN is involved in the study, development and maintenance of the complete image processing chains for the satellite observation systems of a major player in the space sector.


Space manufacturer & equipment supplier

Thales Alenia Space, Airbus D&S, CRISA, One Web, Hemeria

Launch industry

ArianeGroup, United Launch Aliance…

Space agency


Are you interested in the Space sector?

Join the ALTEN team and take part in the biggest technological challenges

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