challenges and issues

Faced with climate change and increasing electricity demand worldwide, we firmly believe that engineering has a central role in accelerating the global energy transition.

As an independent engineering firm, we are leveraging our expertise and experience in complex infrastructure projects to support the advancement of low-carbon energy: the development of nuclear and renewable power plants, the renovation of electricity networks, the production of low-carbon hydrogen for transport and industry, and the development of decarbonised rail transport.

Against an increasingly complex and regulated industry backdrop, our support ensures the success of our customers’ projects in line with their requirements and the challenges they face: optimal delivery, safety and compliance, competitiveness, and ethical concerns.


Over 55 years of experience providing industrial infrastructures with engineering services and managing projects that are complex in size, technological content, and safety requirements. 

We support owners to mitigate risks as the project definition, as well as providing a framework for relations between the stakeholders: project owner, engineer, constructor, operator, independent regulators. 

A smart engineering offer to serve the energy transition and industrial performance

We support our customers from the preliminary stages to the commissioning and operation of their industrial infrastructures, including construction supervision to ensure the safe construction of their installations on time and within budget.

To achieve this, we provide consulting and project management services to our clients, studies and design support as wall as compliance, safety and security assistance.


  • Flexible, full-lifecycle approach, integrating all project stages
  • Long-standing experience in complex and highly regulated sectors
  • Digital expertise at the heart of our engineering methodologies, contributing productivity and efficiency, including risk management throughout the project to avoid impacts on planning and costs
  • Strong safety, security, and regulatory culture, making us an integral part of the nuclear, defence, transport and other complex sectors
  • Digitalisation of engineering processes: platform integration and PLM/PMS solutions, project management and analysis
  • Proven experience in implementation to facilitate project adoption and approval of commercial rollout
  • Strong methodology culture, reflected in our project management and systems engineering expertise
  • Global presence and international mobilisation capacity
Our mission is to design or support projects to develop low-carbon electricity and its uses (hydrogen, transport, etc.).

In doing so, Assystem’s teams support customers at every stage of the project lifecycle.
Thomas Branche SVP Engineering

Key figures

  • 57
    years of expertise
  • 600
    specialists in power plant design
  • 500
    experts in industrial control systems
  • +4000
    specialists in energy engineering
  • 900
    project supervisors
  • TOP 3
    independent nuclear engineering companies in the world

Expert talk


Nuclear engineering goes digital

The current issue is to implement a new, interoperable, pooled data repository in order to ensure better project management and imagine new approaches to operation and maintenance.

Robert Plana
Chief Technology Officer
Robert Plana

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