Air conditioningBuilding technology/ building services (building automation)Gas installationHeatingRefrigerationRemediation worksRenewable energiesSanitarySauna constructionSolar panelsTiles and panelsVentilation
BricklayingEarthworksIndustrial construction and hall buildingPaving worksReinforced concrete worksRemediation worksSealing worksStructural engineeringUnderground construction
Bridge constructionCanal constructionCivil engineeringEarthworksGeneral contractorsIndustrial construction and hall buildingRemediation worksStructural engineeringTurn-key constructionUnderground construction