Kässbohrer Fahrzeugwerke was a German vehicle manufacturer in Ulm. Its products were buses, coaches, vehicle transporters, trailers and special vehicles like snow groomer vehicles. In 1893 Karl Kässbohrer founded the Wagenfabrik Kässbohrer in Ulm. In 1922 Kässbohrer developed a trailer for goods transport, having solid rubber wheels. When Karl Kässbohrer senior died, his sons, Karl junior and Otto Kässbohrer took over the company. In 1969, Kässbohrer was Germany's biggest coach and truck trailer producer. Kässbohrer's coaches and buses were named Setra. The snow grooming vehicles were called PistenBully and 2,000 were sold between 1979 and 1989. At the end of the 1990s about 9,000 employees worked for Kässbohrer.