Collection, purification and distribution of water
- 36.00 — Fence cleaning and water supply
- 43.22 — Installation water supply systems, heating and air conditioning
- 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.
- 37.00 — Sewerage, drainage and wastewater treatment
- 41.20 — Construction of residential and non-residential buildings