This is a list of all large companies in the nuclear power industry which are active along the nuclear chain, from uranium mining, processing and enrichment, to the actual operating of nuclear power plant and nuclear waste processing. There are many other companies that provide nuclear technologies such as nuclear medicine that are independent of the electrical power generation sector.
Others
Other notable nuclear power groups (some mixed energy) include:
References
List of companies in the nuclear sector Wikipedia(Text) CC BY-SA