Installation of heating, air-conditioning and ventilation
Other types of building installations
Other types of specialised building activities
Trade in own real estate
Rental and exploitation of own or leased non-residential real estate, with the exception of social housing
Rental and exploitation of own or leased non-residential real estate, with the exception of land
Rental and exploitation of land
Advice agencies in regard to public relations and communication
Other types of advice agencies related to business management
Rental and lease of other types of consumer products
Repair of consumer electronics
Setting of electric cables and appliances
Setting of telecommunication systems and computer installations
Setting of monitoring systems and alarms against housebreakings
Setting of lighting and signalling systems for roads, railroads, port and airport installations (including the setting of notice boards)
Installation of private swimming pools
Advice and operational assistance for companies in the fields of public relations and communication
Arbitration and mediation between company management and its employees
Advice and assistance for companies and public sectors in planning, organization, search of yield, control, management information, etc.
Estimate of costs and benefits of proposed measures in planning, organization, yield, etc.
Design and realization of projects interesting electric and electronic engineering, mining, chemical and industrial engineering, the engineering of systems, security technics, etc.