Among other activities, it builds turbines for nuclear power stations. Its website says it has '50 years’ experience in servicing nuclear plants' and that "30% of all nuclear power plants worldwide run with Alstom turbine generator sets'.
Revolving door executives
- Joan MacNaughton, a former senior civil servant who was director-general of energy at the former Department of Trade and Industry. She is now Global Adviser Sustainable Policies at Alstom and a member of the High Level Panel for the CDM Policy Dialogue. 
- Craig Jones, Alstom director of government affairs since 2010. He is a former senior civil servant and diplomat, who was deputy director at the Department for Business, Innovation & Skills (BIS) (2008-09) and at the Department of Energy and Climate Change from 2006-08, and a former private secretary to the environment minister (1997-99).
- Professor John Loughhead OBE FREng FTSE is a former Alstom vice-president who was appointed DECC’s chief scientific adviser in October 2014
- Mike Rolls, president of the Energy Industries Club, is its former sales director.