In 1931 a truck manufacturing plant was established in Finland in order to make exceptionally robust trucks for use in extreme arctic conditions. The trucks were given a name that does justice to their properties..SISU.

1962 SISU manufactured its first prototype 4x4 off-road truck in collaboration with the Finnish Defence Forces. The vehicle was called the Proto throughout its lifespan.

1938 The first prototype of an armoured car saw daylight.

1943 SISU manufacture was utilised in serving  the Finnish Defence Forces.

Since 1970's SISU vehicles have been a common sight in UN peacekeeping operations worldwide.

After the 1950’s SISU manufactured not only extremely robust trucks, but also trams and buses.

1996

SISU was awarded the ISO 9001 and AQAP 2110 quality certificates of the Finnish Defence Forces. SISU began to use cabins and engines manufactured by Renault in their vehicles.