Building technology/ building services (building automation)CleaningGas installationHeatingRemediation worksRenewable energiesSanitarySolar panelsTiles and panels
Construction materialsEarthworksFlooring worksHeatingIndustrial construction and hall buildingNatural stone worksParquetryPaving worksRemediation worksShellStair construction
Canal constructionEarthworksInsulation technologyNatural stone worksOutdoor facilitiesPaving worksRemediation worksShellStair constructionTiles and panelsTurn-key construction
Canal constructionCarpentry worksConcrete worksCrane work and rentalPipeline constructionRemediation worksStructural engineeringUnderground constructionWooden construction