
Calogena
Calogena is currently developing a small-scale SMR water-cooled nuclear boiler based on technologies that have been tried and tested for several decades.
Learn more about Calogena

Heliatec
Since 2001, Heliatec has established itself as an essential leader in the fields of prevention, technical assistance, risk management and safety of personnel and industrial facilities…
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Unlock your potential
Seres Technologies operates in a wide range of strategic sectors, from defense and energy to aeronautics, robotics and many others. These fields require expertise, innovation and a constant commitment to meeting the technological and human challenges of tomorrow…
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Group Seres Technologies :
Seres Technologies is an engineering group specialising
in the fields of risk management and the design of complex systems. As an expert in highly constrained environments, Seres Technologies operates in the nuclear energy, hydrogen and electric mobility markets, covering the automotive, aerospace and rail sectors.
Through its resolute commitment and expertise, Seres Technologies has become a key player in the transition to decarbonised mobility and low-carbon energy.
Supported by its subsidiary, Heliatec, the Group’s teams cover the entire V-cycle: from design to construction, commissioning, maintenance and decommissioning. Guided by a strong science-driven culture and a deep respect for human values, the company offers innovative solutions to deliver reliability, maintenance, availability, safety and high performance for systems and facilities.
The Seres Technologies Group constantly demonstrates its exceptional agility and capacity to respond to the challenges of today and tomorrow. This steadfast and determined attitude is reflected in its logo, which represents the leaf of the Ginkgo Biloba tree, in a symbol of resilience and longevity.
Seres Technologies : 3 key points
A Group Gorgé company.
A Group leading numerous large-scale projects
(SMR CALOGENA).
Nearly 1 000 employees
in France and internationally.
Recognised expertise supported by structured technical departments.
Expertise
Seres Technologies and Heliatec Ingénierie provide multidisciplinary expertise to cover every stage of the product and facility life cycle. Their capabilities encompass all aspects of risk management, design and implementation.
Nuclear safety
As a key player in nuclear safety in the civil and defence sectors, Seres Technologies masters every stage of the facility’s life cycle, applying the regulations in force to guarantee safety and security. As part of this, the Group supports strategic projects such as the construction of the new-generation SMR with Calogena.
Operational reliability
Seres Technologies works to ensure system and facility availability by optimising reliability, maintainability and safety, thereby anticipating and preventing any failures.
Integrated Logistics Support (ILS)
Seres Technologies improves maintenance and support for complex systems by implementing rigorous support system management, covering their entire service life. This proactive approach keeps costs under control whilst also maintaining maximum operational availability.
QHSERP and Industrial Risks
Seres Technologies supervises and supports the implementation of QHSERP strategies, in parallel with ensuring the safety and security of systems and users.
Human and Organisational Factors (HOFs)
Seres Technologies helps to control industrial risks by accounting for Organisational and Human Factors, analysing the risks of human error and potential organisational failures in order to guarantee the safety of a facility or product.
Design of complex systems
Mekkatronix, Seres Technologies’ multi-skilled design engineering centre, carries out design, simulation and dimensioning throughout the development of a product or facility.
R&D
Seres Technologies contributes to the development of numerous innovations in the fields of industry, transport and energy, to meet the energy challenges of tomorrow.
Cybersecurity
Seres Technologies protects sensitive infrastructures and strengthens the resilience of critical systems through cybersecurity and artificial intelligence solutions, with a focus on securing the on-board systems in autonomous vehicles.
Technical shutdowns
Heliatec Ingénierie manages your technical shutdowns, including its preparation, all-trades supervision, regulatory compliance and safety, to guarantee the sustainable performance of high-risk industrial facilities.
CSR
Seres Technologies offers sustainable and responsible solutions and practices that will reduce the environmental impact and strengthen the social performance of organisations.
New construction works
Heliatec Ingénierie supports your new industrial construction projects, from design to commissioning, ensuring all-trades supervision and the coordination, compliance and long-term performance of facilities.
Maintenance
Maintenance is vital to ensure the reliability, safety and performance of industrial facilities. It includes preventative, corrective and predictive actions and requires close supervision.
Radiation Protection
Heliatec Ingénierie controls the risks associated with radiation protection through radiological operation monitoring, protecting both operators and the environment.
HSE
Heliatec Ingénierie’s HSE department ensures the safety of teams and facilities during new construction or maintenance work.
Training
Heliatec Training Services is a QUALIOPI-certified company that offers both regulatory and industry-specific training to strengthen team skills in the face of industrial demands.
Sectors of activity
Seres Technologies and Heliatec Ingénierie work a wide variety of strategic sectors. Their expertise has been carefully tailored to the specific needs of each industry.
Nuclear
Seres Technologies uses its expertise to ensure the design, safety, compliance and performance of nuclear facilities.
Hydrogen
Seres Technologies works to develop reliable, safe and high-performance hydrogen mobility infrastructures and components.
Railway
Seres Technologies helps to optimise rail transport safety, availability and maintainability through functional analyses and risk assessments, for both urban and mainline guided transport.
Automotive
Seres Technologies offers services to improve reliability, security and maintainability for light, heavy goods or autonomous vehicles.
Defence
Seres Technologies supports defence contractors with the design, maintenance and optimisation of their equipment.
Aerospace
Committed to supporting innovative projects, Seres Technologies guarantees the reliability, maintainability and compliance of avionic systems to deliver optimal performances.
Robotics
Seres Technologies offers optimisation and reliability solutions for robotic systems, designed and developed for a vast range of environments.
Petrochemicals and chemistry
Heliatec Ingénierie provides technical support for petrochemical distribution, storage, refining and drilling facilities. In the chemicals sector, the group offers maintenance services for production infrastructures and optimisation of industrial processes.
Pharmaceuticals
The Group intervenes on pharmaceutical production lines to ensure product compliance and quality.
Steel and metallurgy
Heliatec Ingénierie helps to ensure the reliability of equipment and compliance with current regulations, particularly during maintenance work or the modernisation of facilities to improve the sustainability of industrial processes.
Mining and phosphate
The Group is working to guarantee the reliability of drilling equipment and ore transport systems, whilst also ensuring the environmental compliance of any emissions and extraction processes.
Construction and infrastructures
Heliatec Ingénierie offers technical support services aiming to ensure site safety and management of the risks entailed by complex operations (scaffolding, hoisting, etc.).
Unlock your potential at Group Seres Technologies
Joining Group Seres Technologies means you’ll be joining an international company that operates on a human scale, where a positive, collaborative-focused culture fosters a stimulating working environment. Thanks to the diversity of our projects across a wide range of sectors, each employee has the opportunity to take on ambitious technological and human challenges, developing their skills and contributing to major innovations.









