40 Years of Nuclear Experience

With its five decades of nuclear experience GNS, world leading supplier of casks for spent fuel, ILW and HLW, also offers services for management and disposal of spent fuel and all types of radioactive waste. Nearly 2000 spent fuel casks of the CASTOR® and CONSTOR® type and over 7,000 MOSAIK® casks for ILW are used today in a number of countries on four continents. This makes GNS the world’s top supplier of shielded transport and storage casks. Design and supply of treatment facilities and all kinds of engineering support round off our portfolio. Furthermore, GNS offers comprehensive solutions for all phases of decommissioning from defueling to dismantling and packaging of large components such as reactor pressure vessels and their internals.

With its 1000 employees the companies of the GNS group achieve a turnover of around 250 million Euros.


(as of 2023)