81.30.Z - Landscape service activities
02.10.Z - Silviculture and other forestry activities, excluding gathering of forestry products
02.20.Z - Logging
42.11.Z - Works related to construction of roads and motorways
42.99.Z - Works related to construction of other civil engineering projects not elsewhere classified
43.12.Z - Site preparation
43.21.Z - Electrical installation
43.22.Z - Plumbing, heat and air-conditioning installation
43.29.Z - Other construction installation
43.39.Z - Other building completion and finishing
43.99.Z - Other specialised construction activities not elsewhere classified
68.20.Z - Rental and operating of own or leased real estate
71.11.Z - Architectural activities
81.10.Z - Buildings service support activities
81.21.Z - General cleaning of buildings