Alstom is a large multinational conglomerate which holds interests in the power generation
Electricity generation
Electricity generation is the process of generating electric energy from other forms of energy.The fundamental principles of electricity generation were discovered during the 1820s and early 1830s by the British scientist Michael Faraday...

 and transport
Transport or transportation is the movement of people, cattle, animals and goods from one location to another. Modes of transport include air, rail, road, water, cable, pipeline, and space. The field can be divided into infrastructure, vehicles, and operations...

 markets. According to the company website, in the years 2010-2011 Alstom had annual sales of over €20.9 billion, and employed more than 85,000 people in 70 countries. Alstom's headquarters are located in Levallois-Perret
Levallois-Perret is a commune in the northwestern suburbs of Paris, France. It is located from the centre of Paris.-Name:The name Levallois-Perret comes from two housing developments, Champerret and Village Levallois , and which resulted in the incorporation of the...

, near Paris. Its current CEO is Patrick Kron.

Alstom is active in the field of hydroelectric power generation; in conventional islands for nuclear power plants; and in environmental control systems. It is also the manufacturer of the AGV
Automotrice à grande vitesse
The Automotrice à grande vitesse ' is an Alstom train intended as the successor to France’s TGV high-speed trains; the name stands for automotrice à grande vitesse, or ‘high-speed self-propelled carriage’...

The TGV is France's high-speed rail service, currently operated by SNCF Voyages, the long-distance rail branch of SNCF, the French national rail operator....

, and Eurostar
British Rail Class 373
The British Rail Class 373 or TGV-TMST train is an electric multiple unit that operates Eurostar's high-speed rail service between Britain, France and Belgium via the Channel Tunnel...

 series, as well as of Citadis
The Citadis is a low-floor tram built by Alstom in La Rochelle, France, and Barcelona, Spain. 1,140 Citadis are currently in use in 28 cities, among others: Bordeaux, Grenoble, Lyon, Montpellier, Orléans, the Paris area, and Barcelona, Dublin, Gdańsk, Katowice, Adelaide, Melbourne, Jerusalem and...

 trams. Alstom is also present in the urban transport market, and is behind regional train models, signalling infrastructure equipment, and a number of associated services.
Alstom has been listed on the Paris Stock Exchange since 22 June 1998.