Alstom Konstal is a company based in Chorzów, Poland producing rail vehicles, in particular metro cars and trams, as well as components for trains.

In 1995, the company's shares were transferred to the National Investment Funds, after which the plant began cooperation with the Linke-Hofmann-Busch factory belonging to the French Alstom concern.

These workshops were created as a production department of the Royal Steelworks in Chorzów (German: Königshütte) and placed on the site of a former steel rolling mill.

[1] In July 1917, the workshops were excluded from the organizational structure of the Royal Steelworks, because at that time the production of the factory differed from the activity of the raw material smelter.

[2] In 1922, a part of Upper Silesia was annexed by Poland, where most of the mines, smelters and factories belonging to the company of united steelworks were located.

At that time, its name was polonized to the Upper Silesian United Royal Steelworks and Laura in Katowice, but nevertheless remained in the hands of German ownership.

[3] After the entry of German troops in 1939 and 1940, the administration and property of the Community of Mining and Metallurgical Interests came under the receivership of the state-owned Reichswerke A.G. für Berg- und Hüttenbetriebe Hermann Göring.

The Processing Workshops became part of it and adopted the name Górnośląskie Zakłady Metalowe Spółka Akcyjna Huty Królewskiej/Górny Śląsk (German: Oberschlesische Metallwerke Aktien-Gesellschaft Königshütte/Oberschlesien, abbreviated as Osmag).

A renovation team was sent to Warsaw, which was tasked with the removal of the remains of the destroyed Poniatowski Bridge from the Vistula riverbed.

At the same time, new spans for this bridge were being built in the factory, and in addition, the repairs of damaged Warsaw trams and the production of new coal trucks began.

[12] Shortly after the transfer of Konstal's shares to NFI, the Linke-Hofmann-Busch plant in Salzgitter (part of the GEC Alsthom Group) was looking for a partner in Central Europe.

[13] In December 1996, a general meeting of shareholders was held, in which a decision was taken to increase the share capital of Konstal to make room for the possibility of a GEC Alsthom takeover.

[13] At the beginning of its activity as an international holding company, Alstom Konstal started producing new types of freight wagons, however the production of trams was still key to the factory.

The 105N family became the longest and most produced tram in Poland – between 1973 and 2001, a total of nearly 3500 wagons were built in over 20 standard and narrow-gauge varieties.

At the end of November 2018, a new assembly line was opened for the production of Intercity Next Generation trains (Coradia Stream) ordered in July 2016 by the Dutch national carrier Nederlandse Spoorwegen.