Contractor and transport company J.A.M. JanssenSIENN Admin
3rd generation: J.A.M. Janssen born on 19-08-1952 takes over the family business from his father on 01-02-1974.
In 1974 the father took over and the company started growing quickly. Initially operating from his Gennep residence with adjacent parking spot and workshop, it soon proved to be unsustainable, especially since it was located in the middle of a residential neighbourhood.