Terracing work: digging, grading of construction sites, opening of trenches, removal of rocks, destruction with explosives, etc.
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.
Installation in buildings or in other projects of building of: heating systems by electricity, gas and fuel, boilers, materials and pipes for ventilation and air conditioning, etc.
Installation in buildings or in other projects of building of: heating, cooling and ventilation systems (except heating)
Design and maintenance of gardens, parks and green places for sport facilities
Freight traffic by road, with the exception of removal firms
Rental and exploitation of own or leased non-residential real estate, with the exception of social housing
Rental and exploitation of land
Interior architects
Rental and lease of other types of consumer products
Rental and lease of machines and installations used in the building industry, road works and water works
Rental and lease of other types of machines, tools and material goods
Other types of business services
Installation of heating, air-conditioning and ventilation