Installation water supply systems, heating and air conditioning
- 46.74 — Wholesale hardware, plumbing and heating equipment and accessories to it
- 43.21 — Electric installation work
- 43.22 — Installation water supply systems, heating and air conditioning
- 82.99 — Provision of other commercial services subsidiary, n.v.d.g.
- 71.12 — Activities in the field of engineering, geology and geodesy, provision of technical advice in these areas
- 71.20 — Technical control and analysis
- 72.19 — Research and experimental development in other natural sciences and engineering