HS-Luftfilterbau GmbH develops, manufactures and sells high-quality air filter solutions for HVAC, cleanroom and process technology. The company supplies a wide range of industries, including life sciences, medical technology, pharmaceuticals and microelectronics. Its objective is to optimize air quality and increase energy efficiency; energy-saving products were particularly successful in process air filtration and turbine/building ventilation filters in 2024. A key differentiator is high product and market differentiation through customer-specific solutions and advanced manufacturing technologies. HS-Luftfilterbau GmbH is a family business.
Vertrieb, Im- und Export, Groß- und Einzelhandel sowie die Fertigung von Luftfilteranlagen, Luftfiltereinsätzen sowie Luftfiltermedien. Die Gesellschaft kann alle Geschäfte betreiben, die der Gesellschaft dienen. Sie kann Zweigniederlassungen errichten. Die Gesellschaft kann sich zu diesen Zwecken an anderen Gesellschaften beteiligen und deren Geschäftsführung übernehmen.
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) Kiel Local Court, HRB 4133 (as of 31 October 2026)
| Name | Type | City |
|---|---|---|
| Harald Schuldt | Geschäftsführer(in) | Rendsburg |
| Malte Schuldt | Geschäftsführer(in) | Heikendorf |
Source: German Commercial Register (Handelsregister) Kiel Local Court, HRB 4133 (as of 31 October 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | Rohergebnis€10.3M2 | €377,913 | €7,338,076 | — |
| 2023 | Rohergebnis€9.6M2 | €152,533 | €7,484,415 | — |
| 2022 | Rohergebnis€11.4M2 | €1,146,054 | €6,508,819 | — |
| 2021 | Rohergebnis€9.6M2 | €683,722 | €6,585,681 | — |
| 2020 | €13,579,423 | €363,559 | €4,951,061 | — |
| 2019 | €12,303,307 | €117,254 | €4,288,666 | — |
| 2018 | — | — | €4,561,292 | — |
| 2017 | — | — | €8,682,856 | — |
| 2016 | — | — | €4,629,085 | — |
| 2015 | — | €497,328 | €3,892,315 | — |
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) Kiel Local Court, HRB 4133 (as of 31 October 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €6,214,159 | 89.7% |
| Depreciation | €567,088 | 8.2% |
| Interest & Similar | €145,287 | 2.1% |
