Underground networks, water supply, sewerage, National Electrical Company, Telecommunication Organism of Greece, special excavation – Trencher, Horizontal Drilling and it undertakes the construction of them in all Greece. The company implements a complete Quality Management System according to ISO 9001: 2015 standard and complies with the requirements of ISO 14001: 2015 Environmental Management System, ISO 27001: 2013 Information Security Management System.