Alstoms

Alstoms is a nonstandard plural form sometimes used to refer informally to the products and corporate heritage of Alstom, a French multinational that designs and manufactures equipment for rail transport and, historically, power generation. The company is officially named Alstom and is best known for its railway systems, rolling stock, and signaling technology, as well as related services.

Its rail portfolio includes high-speed trains such as the TGV, regional and intercity trains, trams, and modern metro systems, together with signaling, control, and safety solutions. Alstom has supplied rolling stock and rail infrastructure for passenger networks worldwide and has played a role in major high-speed and urban transit projects.

Historically, Alstom originated in the 20th century from mergers among electrical engineering firms and expanded into global transportation and energy markets. In the 2010s, its energy business—power generation and grid equipment—was divested to General Electric, while the rail division remained the core focus and continued to grow. In 2021 Alstom completed the acquisition of Bombardier Transportation, broadening its product range and geographic reach.

Geographically, Alstom operates worldwide with a presence in Europe, the Americas, and Asia. It is one of the leading suppliers of rolling stock, signaling, and turnkey rail systems, with projects ranging from high-speed lines to modern metro networks and light rail.

Note: "Alstoms" is not the official company name; the correct term is Alstom.