GSL helps clients take decisions - by performing technical studies and strategic evaluations, and by obtaining approvals for selected management options. The company undertakes multidisciplinary studies covering all aspects of the radioactive waste lifecycle, including inventory analysis, waste treatment, conditioning, and packaging, interim storage, transport and disposal. The company has particular expertise in preparing disposal safety cases for all kinds of radioactive waste, environmental safety cases for decommissioning, research on pre-disposal management options for “problematic” radioactive wastes, criticality safety assessment and lifecycle cost assessment.

Galson Sciences has an international profile as a lead provider of radioactive waste management solutions, and has played a major role in programmes across the globe.

On 31 March 2021, Egis acquired a majority shareholding in GSL. Egis is a major international group bringing innovation in consulting, engineering, and operations in the construction engineering and mobility services sectors (€1.07 Bn turnover in 2020, 16,000 employees). The Group creates and operates intelligent infrastructure and buildings capable of responding to the global climate emergency by helping to achieve more sustainable and resilient development. Egis is a 75%-owned subsidiary of the French public financial institution Caisse des Dépôts, with the remaining 25% held by partner executives and employees.

Egis has a long-standing involvement in nuclear power-related activities. The nuclear team has contributed to the design of all the French technology nuclear power plants, and has helped make France the world’s second largest country for nuclear reactors, after the USA. Since 2000 Egis has played a leading role in projects – in Finland, France, China and the UK, in existing plant maintenance and lifetime extensions, and in ITER, the international programme for experimental nuclear fusion research in Cadarache, France.