Who are we?

Drawing on more than 55 years’ experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimise the performance of complex infrastructure projects throughout their life cycle.

The Group is one of the world's top 3 nuclear engineering groups.

Learn more about our Engineering, Digital and Project Management activities.

Our purpose

The fight against climate change is one of the priorities of the 21st century. It implies an energy transition on a global scale, with the objective of making safe and sustainable energy accessible to all populations.

Assystem’s mission is to help step up the energy transition throughout the world. We devote all of our energy to this task, combining our historical expertise in engineering and project management with digital technologies to create a reliable and sustainable energy future for all.

For this purpose, we work globally on the development of low-carbon electricity, both in terms of its production and its distribution, through the expansion of nuclear energy and renewable energies throughout the world. We also focus on the renovation of power grids and the development of new uses for electricity, such as the development of green hydrogen with a view to decarbonising transport and industry.

At Assystem, we consider ourselves to be activists in the fight against climate change and in the development of nuclear energy throughout the world. We firmly believe that nuclear energy is essential in the fight against climate change.

The management team

  • Dominique Louis

    Chief Executive Officer

    Dominique Louis

    Chief Executive Officer

    Dominique Louis is Chairman of the Assystem SA Board of Directors. A graduate of the ENSEM school of engineering, Dominique Louis began his career as a testing engineer at ATEM, specialised in industrial and nuclear engineering. He went on to found the company R’data, followed by Alphatem, a joint subsidiary with COGEMA, which would later merge to form Assystem. In 1995, Dominique Louis oversaw the initial public offering of Assystem which had a staff of 3,000 engineers and technicians and an annual revenue of €250 million at the time. The phasing out of nuclear power in the late 1990s marked the beginning of Assystem’s transformation, whereupon it would diversify into the aeronautics and automotive sectors and develop internationally. In 2017, Dominique Louis decided to refocus the Group’s business on its historic areas of expertise: nuclear power and complex infrastructures. For this purpose, Assystem sold 60% of its outsourced R&D business to the Ardian investment fund and acquired a 5% stake in Framatome to confirm the Group’s role in the French nuclear sector. In 2018, Dominique Louis and his advisor Jean-Louis Ricaud, published a book entitled "2050 : la France sans Carbone” (2050: A Carbon-Free France), which set out their uncompromising review of trends in global CO2 emissions, and the solutions to be deployed to ensure access to competitive, decarbonised energy for all.  In 2021, Dominique and Jean-Louis Ricaud published their second book, Energie nucléaire, le vrai risque” (Nuclear energy, the real risk), in which they demonstrate the role of nuclear power as an all-important solution to the climate challenge. Dominique Louis was made a Chevalier (Knight) of the Légion d’honneur (Legion of honour).
  • Stéphane Aubarbier

    Deputy Chief Executive Officer

    Stéphane Aubarbier

    Deputy Chief Executive Officer

    Stéphane Aubarbier is an engineering graduate from INSA Lyon and ESCP-EAP. He started his career at Assystem as a test engineer before taking on various responsibilities that led him to take charge of the automotive sector. After a 5-year period with the ABB group where he managed the maintenance contract activities for France and then for Southern Europe, before managing the marketing and development of the service branch for Southern Europe, he returned to the Assystem group in 2002 to create the engineering activities and redevelop the energy & nuclear sector. Appointed Executive Vice President of the group in 2005, he managed the automotive, manufacturing and energy sectors and led the development in the Middle East and Asia. He became Chief Operating Officer in 2018. On January 24, 2023, he was appointed Deputy CEO of the Assystem group, in charge of all the company's activities. Stéphane Aubarbier was also President of Syntec-Ingénierie (French professional federation) and has been a member of the Strategic Committee of the French Nuclear Industry since 2011.
  • Malène Korvin

    Group Chief Financial Officer

    Malène Korvin

    Group Chief Financial Officer

    Malène is a graduate of the French business school ESCP Europe. She began her career at KPMG Deal Advisory in 2008, where she was senior manager in Transaction Services and took part in numerous merger & acquisition projects. In 2014, she joined Europcar Mobility Group where she held several positions in finance and operations,  including Group Head of M&A, Group Controlling Director, Group Transformation Director in charge of HQ reorganization together with functional processes rationalization, Deputy Group CFO, and lastly Group CFO prior to Europcar delisting after the acquisition by a Volkswagen-led consortium. She joined Assystem in February 2023 as Group Chief Financial Officer. She is a member of the Executive Committee.
  • Christian Jeanneau

    Executive Vice President International, Project Management & Digital

    Christian Jeanneau

    Executive Vice President International, Project Management & Digital

    A graduate of the INSA Lyon engineering school, Christian Jeanneau joined Assystem in 1995 as a testing engineer, working in French nuclear plants and in the naval sector, among others. After gaining further experience in South Africa in infrastructures, then in the automotive industry as Director of Operations, Christian took the helm of the Engineering business in 2008, then of the French nuclear activities in 2011. In 2013, he became Managing Director of Assystem France for Energy, Infrastructures and Life Science activities, before being appointed Senior Vice-President for the Group’s digital activities in 2022. Since July 2023, Christian is Executive Vice President International, Project Management & Digital. He is also Director of the Assystem Institute, our training body created in 2008 to transfer the Group’s skills and knowledge to new generations of engineers, and Administrator & Vice President of Syntec Ingénierie, in charge of social issues and training.
  • Thomas Branche

    Executive Vice President France, Nuclear & Energy New Build

    Thomas Branche

    Executive Vice President France, Nuclear & Energy New Build

    A graduate of France’s prestigious Ecole Polytechnique and a member of the Corps des Mines, Thomas Branche began his career at Total Exploration & Production, before joining the French Ministry for Energy, where he managed the nuclear branch of the General Directorate for Energy and Climate Change. He, then, became Deputy Head of the cabinet of the French Minister for Industry, Energy, and the Digital Economy. He joined Assystem in July 2012 taking charge of the French Nuclear business unit, before moving to Dubai in 2016 to manage Assystem's activities in Middle East and Central Asia. In 2017, Thomas became Senior Vice-President in charge of "Energy Transition and Infrastructure" activities, then in 2022, of Assystem's engineering activities worldwide. He is appointed Executive Vice President France, Nuclear & Energy New Build in July 2023 and represents the French professional federation of engineering companies on France’s Hydrogen Council.
  • Emmanuelle Capiez

    Senior Vice President in charge of Human Resources

    Emmanuelle Capiez

    Senior Vice President in charge of Human Resources

    Emmanuelle Capiez holds a Master's degree in Economics and began her career as a consultant in international HR firms specialising in headhunting (Egor, FSC Consultants, etc.). After 6 years in a consulting firm, Emmanuelle joined the SIRIS Group - Telecom Operator - as HR Development Manager, building an expertise in recruitment, training, internal mobility, Key People management, to then take on a broader role as HR Business Partner. In 2003, Emmanuelle took on the role of Human Resources Director at Assystem, first in BU functions, then in France, then internationally, before taking overall responsibility for Human Resources as Senior Vice-President of Human Resources within the Group. She is a member of the Executive Committee.  
  • Anne-Charlotte Dagorn

    Marketing and Communication Director

    Anne-Charlotte Dagorn

    Marketing and Communication Director

    In 2012, Anne-Charlotte graduated from the Paris Institute of Political Studies and Peking University with a dual master's degree in international affairs, specialising in the environment and sustainable development. She began her career at Orano in the strategy department, before joining Assystem in 2014. She is presently Assystem’s Marketing & Communication Director and a member of the Executive Committee. From 2017 to 2021, Anne-Charlotte was also Gender Diversity Programme Director. In 2019, she was appointed Chair of the Communication Commission for the French Nuclear Industry Association (GIFEN).
  • Robert Plana

    Chief Technology Officer

    Robert Plana

    Chief Technology Officer

    Holder of a doctorate in Information and Communication Sciences and Technologies, Robert Plana has spent more than 30 years working in research and design, innovation, and digital transformation. After teaching for several years at the Paul Sabatier University of Toulouse and at the "Institut Universitaire de France", he pursued a career in research and design and innovation management, holding various management positions at the CNRS, the French National Research Agency, and the French Ministry of Higher Education and Research. He continued his career in innovation at Alstom and GE where he oversaw various R&D programs in the field of smart grids and digital twins. Robert joined Assystem in 2017 as Chief Technology Officer. As a member of the Executive Committee, Robert leads the Group’s innovation and digital transformation strategy. Drawing on his expertise in cutting-edge industry, Robert supports Assystem’s strong development ambitions to step up its digital transformation and its innovative capacity to increase the performance of the services delivered to its customers.

Our offices

Key Figures

  • 12
  • 57
    years of experience
  • 500
    millions euros of revenue
  • 7000

Our latest news


Assystem Launches Student Innovation Competition

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Assystem highlights nuclear sector’s digital future at Nuclear Week in Parliament

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Looking back on the Innovation Challenge 2023 final at Assystem

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