43.21.Z - Electrical installation
62.02.Z - Computer consultancy activities
80.20.Z - Security systems service activities
74.90.Z - Other professional, scientific and technical activities not elsewhere classified
74.10.Z - Specialised design activities
72.19.Z - Other research and experimental development on natural sciences and engineering
71.20.B - Other technical testing and analysis
71.12.Z - Engineering activities and related technical consultancy
71.11.Z - Architectural activities
63.12.Z - Web portals
63.11.Z - Data processing, hosting and related activities
62.09.Z - Other information technology and computer service activities
62.03.Z - Computer facilities management activities
41.10.Z - Realization of building projects related to erection of buildings
62.01.Z - Computer programming activities
61.90.Z - Other telecommunications activities
61.30.Z - Satellite telecommunications activities
61.20.Z - Wireless telecommunications activities, excluding satellite telecommunications activities
61.10.Z - Wired telecommunications activities
47.99.Z - Other retail sale not in stores, stalls or markets
47.91.Z - Retail sale via mail order houses or via internet
47.54.Z - Retail sale of electrical household appliances in specialised stores
47.43.Z - Retail sale of audio and video equipment in specialised stores
43.29.Z - Other construction installation
41.20.Z - Building works related to erection of residential and non-residential buildings
