1898: Corneille Karp-Kneip founded his company. 1936: First application of white concrete with a finisher. 1950: Asphalt mixing plant in Oetrange, start of asphalt production. 1957: Ernest Thiry takes over the company. 1987: Takeover of the Karp-Kneip companies by the brothers Christian and François Thiry and creation of the limited liability companies Karp-Kneip construction and materials.

Karp-Kneip relies on long-term investments in the fields of safety, health and training by creating relevant departments with the following objectives: Achieve optimum safety levels in order to guarantee the health of our workers, To manage the capacities of our personnel as well as possible and to give them access to continuous and specific training allowing the development of the intrinsic capacities of each one.

Karp-Kneip constructions SA is a Luxembourg company specializing in road trades. KARP-KNEIP is active in road works in the Greater Region, Germany, Belgium, France and of course in Luxembourg. Among its clients, the company counts BRIDGES & CHAUSSEES administrations, municipalities, small and large industries, as well as private individuals.