Ansaldo Energia is the Finmeccanica company specialised in the supply of systems and components for power generation, combined cycle and simple, service and nuclear.
Ansaldo Energia works in the international market with a customer portfolio that includes public sector agencies, independent producers and industrial customers with a complete range of products that are largely proprietary.
 
In the rail transport sector, Finmeccanica designs, develops and manufactures rolling stock, transport solutions and railway signalling systems.
 
Ansaldo STS, listed on the Milan Stock Exchange, is a leader in the railway and metro technology sector. Ansaldo STS is organised into two business units, "Trasportation Solutions" and "Signalling", that design, develop and manage transport and signalling systems.
 
AnsaldoBreda is the Finmeccanica company that builds rolling stock for mass transit systems.