We add value to provide energy to the world

Welcome to GDES UK, a fully owned subsidiary of GDES Group. As our Group motto states, we add value in providing energy in the UK nuclear sector by working as preferred supplier, providing high quality services safely on civil sites


The UK is a strategic market for GDES Group,our stated mission is to consolidate and grow a sustainable long term business supported by our international knowledge, experience and expertise.


GDES Group is a family owned international business specialising in providing enhanced value services to industry, with a particular focus on the energy sector.

The business ethos is a passion for innovation, and providing clients with efficient and effective services which bring tangible benefits.


  • Over 45 years’ nuclear sector experience
  • Innovation and R&D investments core to year on year growth
  • With 1000 staff in 9 countries


In 2013 GDES Group acquired NDSL, a specialist UK decommissioning company. This was soon re-branded GDES UK and has since enjoyed continued success in winning new business in the UK and Europe. The acquisition of GDES UK signalled a long term business commitment to the UK and intention to build our service offering and expand operations, relying on local staff and resources with high added value for our clients.