Asphalt worksBridge constructionCable layingCanal constructionConstruction materialsDemolition worksDredgingEarthworksEnvironmental engineeringGarden and landscape constructionHydraulic engineeringIndustrial construction and hall buildingNatural stone worksPaving worksProcessing of building materialsRoad constructionSport places buildingStructural engineeringUnderground construction
Building technology/ building services (building automation)Cable layingCommunication technologyData network worksDoors and gatesElectrical installationFire protectionIndustrial construction and hall buildingLighting systemsLightning protectionPhotovoltaicsPlant engineeringRenewable energiesSafety technologySewage treatment plantsSolar panels