Bührer Traktorenfabrik AG, (Bührer Tractor Factory), was a Swiss tractor manufacturer based in Hinwil, Zurich. Buhrer started building tractors in the 1930s having started building self-propelled mowers in 1929. and by 1940 was an early user of diesel engines in tractors. The company was innovative as they introduced cabs from 1938 and offered 3-range gearboxes from 1954. The company built tractors up till 1978 with total production being about 22,600.