Rosatom entered the European market via France in 1971. At the time, Tenex, the Russian subsidiary responsible for uranium enrichment, obtained its first supply contract with the French Atomic Energy Commission (CEA). This was followed by new supply contracts for enrichment services with otherWestern European countries (Italy, Germany, the United Kingdom, Spain, Sweden, Finland, Belgium, and Switzerland). 
Today, France is Rosatom's primary trading partner in Western Europe. Rosatom actively collaborates with French businesses via its partnerships with the CEA, EDF, Areva, Schneider Electric, and Rolls Royce.
Germany is among Rosatom's key partners. Its subsidiary NUKEM Technologies GmbH is positioned as a leader in the German decommissioning market. 
Rosatom has a long-standing partnership with Finland. Between 1970 and 1980, Rosatom contributed to building the Loviisa nuclear power station, which is now one of the European leaders with regard to energy efficiency and safety. 
In 2013, Rosatom won the invitation to tender for construction of the Hanhikivi-1 nuclear power station in Pyhäjoki, in northwest Finland. 
Rosatom also provides fuel for the Loviisa nuclear power station. 
In Switzerland, Rosatom supplies enriched uranium. Its subsidiary Techsnabexport (Tenex), an international exporter of fuel cycle products, has a sales office in Zoug.