Building of conveyance, distribution and water disposal networks
Installation in buildings or in other projects of building of: pumbling systems and hygiene appliances, pipes for gas and water (except for heating), setting of automatic extinguishers, etc.
Plumbing works
Management of computer facilities
Other types of civil service, with the exception of housing
Other services related with information technology and computers
Data-processing, web hosting and suchlike
Web portals
Other types of education
Complete youth care, with the exception of accommodation
Installation of heating, air-conditioning and ventilation