Installation water supply systems, heating and air conditioning
- 41.10 — Organization of construction of buildings
- 43.22 — Installation water supply systems, heating and air conditioning
- 49.41 — Road freight transport
- 71.12 — Activities in the field of engineering, geology and geodesy, provision of technical advice in these areas
- 74.90 — Other professional, scientific and technical activities, n.v.d.g.
- 42.11 — Construction of roads and motorways
- 42.21 — Construction of pipelines