Assystem S.A. (LON:0OA7)
London flag London · Delayed Price · Currency is GBP · Price in EUR
40.90
+0.15 (0.37%)
At close: Oct 15, 2025

Assystem Company Description

Assystem S.A. provides engineering and infrastructure project management services in France, the United Kingdom, and internationally.

The company offers siting, licensing, environmental services, system engineering and design, construction management and commissioning, and nuclear safety and risk, as well as project management office, project controls, project management consultancy consulting, and other consulting services.

It also provides digital transformation consulting, engineering information systems, data as a source of value, digital twin, 3D immersive technologies and tools, industrial control systems and cybersecurity, and security and site protection systems.

It serves nuclear, hydrogen, renewables, grids, transportation, cities and territorial development, and defense sectors.

In addition, the company offers decommissioning and waste processing, treatment, and storage services.

The company was formerly known as AssystemBrime S.A. and changed its name to Assystem S.A. in June 2005.

Assystem S.A. was founded in 1966 and is based in Courbevoie, France. Assystem S.A. is a subsidiary of HDL Development.

Assystem S.A.
CountryFrance
Founded1966
IndustryEngineering & Construction
SectorIndustrials
Employees7,740
CEODominique Louis

Contact Details

Address:
Tour Egee
Courbevoie, 92400
France
Phone33 1 41 25 29 00
Websiteassystem.com

Stock Details

Ticker Symbol0OA7
ExchangeLondon Stock Exchange
Fiscal YearJanuary - December
Reporting CurrencyEUR
ISIN NumberFR0000074148
SIC Code7373

Key Executives

NamePosition
Philippe ChevallierChief Financial Officer and Deputy Chief Executive Officer
Dominique LouisChairman and Chief Executive Officer
Nathalie FontQuality Engineer and Employee Representative Director
Stephane AubarbierChief Operating Officer
Gerard BresconExecutive Vice President of Human Resources Development
Thomas BrancheSenior Vice President Energy Transition and Infrastructures
Christian JeanneauSenior Vice President Nuclear
Franck LadegaillerieSenior Vice President of MPH