Assystem is an independent engineering group based in
Paris
Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
created in 1966. It provides services in design, construction, supervision, commissioning and operation of complex projects and industrial infrastructure, mostly in the nuclear industry.
The corporation notably participated to all the
EPR (European Pressurized Reactor) construction projects in the world (in
Flamanville (France),
Taishan (China), and
Okiluoto (Finland)).
It had revenues of over €470M in 2020,
down from €871.4M in 2013. It had over 7100 employees as of 2021,
down from over 11,000 in 2013, mostly due to its decision to recenter its activities around the
nuclear industry, and leave behind most of its participation in other sectors (such as the
automotive industry
The automotive industry comprises a wide range of company, companies and organizations involved in the design, Business development, development, manufacturing, marketing, selling, Maintenance, repairing, and Custom car, modification of motor ve ...
).
[Au 30/09/2013 d'après le communiqué de presse du 12 novembre 2013 ](_blank)
Assystem also has activities in the
aerospace industry
Aerospace is a term used to collectively refer to the atmosphere and outer space. Aerospace activity is very diverse, with a multitude of commercial, industrial, and military applications. Aerospace engineering consists of aeronautics and astr ...
. Indeed, in 2005, Assystem acquired the Atena subsidiary of the German company
MTU Aero Engines. In addition, the company has also been involved in the engineering of the future
Flying Whales airship since 2018.
In February 2019, the company was renamed Expleo Group.
References
External links
Official websiteProfileon Google Finance.It has other filial as ATENA
Assystem YouTube channel
Engineering companies of France
Companies based in Paris
Construction and civil engineering companies established in 1966
French companies established in 1966
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