Building of transport and distribution lines for electricity
Setting of electric cables and appliances
Setting of telecommunication systems and computer installations
Setting of monitoring systems and alarms against housebreakings
Installation in buildings or in other projects of building of: heating, cooling and ventilation systems (except heating)
Setting of electrical installations of heating
Repair of electronic and optical equipment
Electro-technical installation works at buildings
Holdings
Trade in own real estate
Other types of business services
Activities of holding management: intervention in daily management, representation of companies on the basis of possession or control of the capital stock, etc.