43.99.Z - Other specialised construction activities n.e.c.
41.10.Z - Realization of building projects related to erection of buildings
41.20.Z - Building works related to erection of residential and non-residential buildings
42.2 - Construction of utility projects
42.99.Z - Construction of other civil engineering projects n.e.c.
43.12.Z - Site preparation
43.22.Z - Plumbing, heat and air-conditioning installation
43.29.Z - Other construction installation
78.10.Z - Activities of employment placement agencies
78.20.Z - Temporary employment agency activities and other human resource provisions