Swiss Locomotive and Machine Works was a railway equipment manufacturer based in Winterthur in Switzerland. Much of the world's mountain railway equipment was constructed by the company.

Stadler Rail is a Swiss manufacturer of railway rolling stock, with an original emphasis on regional train multiple units and trams, but moving also into underground, high speed, intercity and sleeper trains. It is also producing niche products, such as being one of the last European manufacturers of rack railway rolling stock. Stadler Rail is headquartered at its place of origin in Bussnang, Switzerland. Stadler Rail employed 13,400 employees by 2022.