- 43.22 — Installation water supply systems, heating and air conditioning
- 77.39 — Leasing of other machinery, equipment and goods, n.v.d.g.
- 81.22 — Other activities cleaning of buildings and industrial facilities
- 46.69 — Wholesale trade of machinery and equipment
- 46.73 — Wholesale timber and building materials and sanitary equipment
- 46.74 — Wholesale hardware, plumbing and heating equipment and accessories to it
- 46.90 — Non-specialized wholesale trade
Installation of heating, ventilation and air conditioning