K & S Gesellschaft fuer Gebaeudetechnik mbH plans, supplies and installs building-technology systems and, through its steel and metal construction division, provides corresponding metal construction services. The company provides around-the-clock maintenance and disturbance services and primarily serves public and commercial customers. In the 2023 financial year an average of 157 employees were employed and the company meets the size criteria of a medium-sized GmbH according to § 267 (2) HGB. The focus in 2023 remained on service and maintenance of building-technology systems; at the same time investments were made in renewing the vehicle fleet and in IT software for digitalization.
die Ausübung des Elektrohandwerkes, Mess- und Regel-, Kommunikations-, Gebäude- sowie Heizungs-, Sanitär- und Lüftungstechnik, ferner das Facility-Management sowie die Ausübung des Metallhandwerkes.
Converted using the official Destatis and Eurostat correspondence tables; ISIC Rev. 4 is the United Nations' international industry classification.
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Source: German Commercial Register (Handelsregister) Duisburg Local Court, HRB 15733 (as of 31 October 2026)
| Name | Type | City |
|---|---|---|
| Jens Förster | Geschäftsführer(in) | Neuss |
Source: German Commercial Register (Handelsregister) Duisburg Local Court, HRB 15733 (as of 31 October 2026)
| Date | Event Type | Event |
|---|---|---|
| 01.12.2017 | Registered Seat Change | Oberhausen |
| 01.12.2017 | Business Address Change | Im Erlengrund 17a, 46149 Oberhausen |
| 01.12.2017 | Gesellschaftsvertrag amended | Gesellschaftsvertrag |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 04.02.2004 | Share Capital Set | — | 37.500 € |
| Date | Contract | Value |
|---|---|---|
| 6.10.2026 | Supplier · Bau- und Liegenschaftsbetrieb NRW Zentrale | — |
| 4.6.2026 | Supplier · Kunst- und Ausstellungshalle der Bundesrepublik Deutschland | — |
| 19.5.2026 | Wartungsvertrag raumlufttechnische Anlagen in verschiedenen Objekten der Stadt Ibbenbüren Supplier · Stadt Ibbenbüren | — |
Source: German Commercial Register (Handelsregister) Duisburg Local Court, HRB 15733 (as of 31 October 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | Rohergebnis€9.4M2 | €331,594 | €6,199,467 | — |
| 2023 | Rohergebnis€8.3M2 | €134,536 | €4,601,764 | — |
| 2022 | Rohergebnis€8.6M2 | -€125,861 | €5,384,246 | — |
| 2021 | Rohergebnis€8.9M2 | €379,746 | €5,378,731 | — |
| 2020 | Rohergebnis€8.2M2 | €272,614 | €5,209,284 | — |
| 2019 | Rohergebnis€7.4M2 | €145,033 | €4,099,980 | — |
| 2018 | Rohergebnis€7.1M2 | €225,554 | €4,639,586 | — |
| 2017 | Rohergebnis€7.1M2 | €117,609 | €3,992,063 | — |
| 2016 | Rohergebnis€7.3M2 | €301,630 | €4,650,200 | — |
| 2015 | small company1 | €22,098 | €3,894,936 | — |
1 Small companies are not required to publish a profit-and-loss statement (§ 326 (1) HGB). The figure shown is the statutory ceiling under § 267 HGB where the balance-sheet total makes it binding — a company may exceed at most one of the three size criteria.
2 Rohergebnis nach § 276 HGB: Umsatzerlöse abzüglich Materialaufwand bzw. Herstellungskosten. Kleine und mittelgroße Kapitalgesellschaften dürfen diese Posten zusammenfassen; die Umsatzerlöse selbst sind dann nicht veröffentlicht und liegen über dem Rohergebnis.
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Source: German Commercial Register (Handelsregister) Duisburg Local Court, HRB 15733 (as of 31 October 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €6,486,372 | 92.1% |
| Depreciation | €510,644 | 7.3% |
| Interest & Similar | €45,564 | 0.6% |
