Ernst Vasellari Senior laid the foundations for today's company. He founded the successful company in Möhlin in 1945, just after the end of the Second World War. As a mechanical workshop, his loyal customers included the many farmers with their various agricultural vehicles and equipment. After the Bührer tractor factory in Hinwil ceased production in 1976, the company began selling John Deere tractors in the same year.

In 1979, the two sons Ernst and Walter founded what is now Vasellari AG and have been selling the various Nissan models and acting as Nissan dealers since 1981. Since 1972, they have also been selling the Honda Power Equipment range, including Honda marine engines.

In 2010, Honda Engines were added, i.e. all types of engines for garden equipment, cleaning equipment, construction machinery, industrial applications, agricultural equipment, karts, hand-held equipment and transportable equipment.

A generation change took place at the end of 2014. Walter Vasellari retired after 55 years in business.

At the beginning of 2015, Markus Vasellari, Ernst Vasellari's son, joined the company and took over the management together with his father.