Home » Our services » Technologies


Accompanying our clients every step of the way, throughout the entire life span of their nuclear and industrial installations



Onet Technologies is at the forefront of all the technologies that come into play during the life cycles of nuclear and industrial plants. Drawing on forty years' experience in the field, Onet Technologies specialises in reactor engineering and maintenance, decommissioning and dismantling and  nuclear waste treatment.


Having its own industrial installations means that Onet Technologies can design, build and qualify its own dedicated equipment. Thanks to its ICPE (classified installation for environmental protection) SOGEVAL, Onet Technologies offers valuable service to its clients by taking charge of the treatment and storage of their nuclear waste.


Onet Technologies strategically develops partnerships that will structure its future and invests in developing technologies in the fields of equipment design, plant inspection and control, dismantling in high radioactivity environments as well as in the field of information technologies applied to nuclear services.




Backed by its engineering division of some 400 engineers and specialists, and an associate partner of the « Nuclear Expertise from France » label, Onet Technologies exports its know-how beyond the French borders to Europe, Japan and now to the United States where the Onet Group has recently made the acquisition of EPM, Engineering Planning and Management, Inc. specialised in safety analysis and fire protection engineering.


Security and safety culture, talent management and operational performance are the underpinning core values of the services delivered by Onet Technologies to each one of its clients.


Our services:


Our strenghts:

  • An experience of over 40 years supporting the key players in the French nuclear sector: EDF, CEA, AREVA and ANDRA
  • A range of integrated engineering and service solutions covering the complete life cycle of nuclear installations
  • On-site presence in practically all the French nuclear plants
  • Increasing expansion into  international markets


Key elements:

  • Sales turnover of 251 million euros
  • 2 760 employees
  • 400 engineers
  • 30 agencies or offices in France.