OG 1 – Domestic and industrial buildings – Class. VI up to 10,329,000 Euro
OG 9 – Electricity production systems – Class. IV up to 2,582,000 Euro
OG 10 – Systems for high/medium voltage transformation, systems for distribution of alternating and direct current electricity and public lighting systems – Class. IV up to 2,852,000 Euro
OG 11 – Technological systems – Class. VIII up to 20,658,000 Euro
OS 3 – Plumbing systems and bathroom fixture systems including kitchens and laundrettes – Class. VI up to 10,329,000
OS 9 – Systems for illuminated signage and traffic safety – Class. III b up to 1,500,000 Euro
OS 19 – Telecommunication network systems as well data transmission and handling systems – Class. IV up to 2,582,000 Euro
OS 28 – Heating and air conditioning systems – Class.VII up to 15,494,000 Euro
OS 30 – Internal electrical, telephone, radio-telephone and television systems – Class. VIII up to 20,658,000 Euro
Licensed to undertake design and construction projects up to class. V.