This is a list of the world's locomotive builders by country, and is still a work in progress. The list includes both current and historical builders. Many companies changed names multiple times; the attempt is to give the most recognisable name, generally the one used for the longest time or during the company's best known period.
Canada
Czech Republic
Denmark
Germany
India
United Kingdom
Historically, major railways in the United Kingdom built the vast majority of their own locomotives. Commercial locomotive builders were called upon when requirements exceeded the railway works' capacity, but these orders were generally to the railways' own designs. British commercial builders concentrated on industrial users, small railway systems, and to a large extent the export market. British-built locomotives were exported around the world, especially to the current or former British Empire. With the almost total disappearance of British industrial railways, the shrinking of the export market, and much reduced demand from Britain's railways, few British locomotive builders survive.
United States
Active companies
Defunct companies
In addition to these, many railroads operating steam locomotives built their own locomotives in their shops. Notable examples include the Pennsylvania Railroad's Altoona Works and the Southern Pacific's Sacramento Shops. Estimates of the total Steam locomotive production in the USA is approximately 175,000 engines.
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