The core activity of Orion Construction is the provision of services in the construction sector, particularly in the gros-œuvre, i.e. rough construction work. This includes, among other things: site preparation and excavation, foundation work and substructure, masonry and concrete work, installation of sewage and other technical systems, demolition and dismantling work, and special work such as the construction of Berlin walls and formwork. The company offers these services for various types of construction projects, ranging from simple walls to complex high-rise buildings.