The construction sector has always contributed its part to the building of a harmonious development of the Luxembourg economy. When FEDIL was first founded in 1918, eight entrepreneurs formed part of the group of poineers. But it took another 30 years before we were represented as such. After the Second World War the first collective contract was celebrated in the construction sector under the impulse of the general Association of Luxembourg entrepreneurs of construction and public works. At the beginning of the 1950s, Emil Nennig modernised the representation of the sector within the Groupement des Entrepreneurs and at the same time became the vice-president of the International Federation of building and public works. The symbolism is strong, joining the advocacy of our interests on a national level with our involvement in the European scene during the postwar French economical boom.