43.21.Z - Electrical installation
41 - Construction of residential and non-residential buildings
43.1 - Demolition and site preparation
43.9 - Other specialised construction activities
61 - Telecommunication
66.19.Z - Other activities auxiliary to financial services, except insurance and pension funding
71.1 - Architectural and engineering activities and related technical consultancy
71.20.B - Inspection and issuance of opinions on the technical condition of chimneys and ventilation ducts
77.3 - Rental and leasing of other machinery, equipment and tangible goods
78 - Employment activities