STOeRK Umwelttechnik GmbH plans, develops, produces, supplies and installs non-thermal exhaust air treatment systems primarily for industrial and municipal customers and is headquartered in Emmingen where production and development take place. Its operations are divided into retrofitting/rehabilitation of existing biofilter plants and the planning, manufacture and installation of complete new exhaust air cleaning systems, including regulatory approval support and acceptance measurements. In addition, the company offers gas analyses, laboratory analyses, maintenance, servicing and spare parts supply and operates two sites in Drensteinfurt and Karstädt for sales, spare parts and service in northern/central/west and eastern Germany. Development was funded in 2024 by federal research and innovation programs; two development projects (an automated sensor for mold spores and an automated moisture measurement system for biofilters) are in progress with market launch planned by 2026 at the latest. STÖRK Umwelttechnik GMBH is a family business.
Entwicklung, Herstellung und Handel mit Biofiltern und sonstigen Produkten auf dem Gebiet der Umwelttechnik;
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) Stuttgart Local Court, HRB 451220 (as of 1 November 2026)
| Name | Type | City |
|---|---|---|
| Andreas Störk | Geschäftsführer(in) | Emmingen-Liptingen |
| Hans Störk | Geschäftsführer(in) | Emmingen-Liptingen |
Source: German Commercial Register (Handelsregister) Stuttgart Local Court, HRB 451220 (as of 1 November 2026)
| Date | Event Type | Event |
|---|---|---|
| 07.01.2019 | Gesellschaftsvertrag amended | Gesellschaftsvertrag |
| 23.12.2013 | Gesellschaftsvertrag amended | Gesellschaftsvertrag |
| 22.04.2010 | Business Address Registered | Friedrich-Wöhler-Str. 21, 78576 EmmingenLiptingen |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 07.01.2019 | Capital Increase | +85.000 € | 200.000 € |
| 23.12.2013 | Capital Increase | +50.000 € | 115.000 € |
| 17.01.2007 | Share Capital Set | — | 65.000 € |
| Date | Contract | Value |
|---|---|---|
| 23.5.2025 | Supplier · Stadtentwässerung Frankfurt am Main | — |
Source: German Commercial Register (Handelsregister) Stuttgart Local Court, HRB 451220 (as of 1 November 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | Rohergebnis€7.3M2 | €816,780 | €9,236,464 | — |
| 2023 | Rohergebnis€7.4M2 | €981,040 | €9,173,213 | — |
| 2022 | Rohergebnis€5.8M2 | -€107,156 | €7,030,926 | — |
| 2021 | Rohergebnis€6.3M2 | €176,163 | €6,482,048 | — |
| 2020 | small company1 | €51,820 | €5,844,101 | — |
| 2019 | ≤ €12M1 | €202,805 | €7,377,767 | — |
| 2018 | small company1 | €188,800 | €5,072,336 | — |
| 2017 | small company1 | €376,871 | €3,309,884 | — |
| 2016 | small company1 | €374,357 | €4,209,708 | — |
| 2015 | small company1 | €75,393 | €3,270,299 | — |
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) Stuttgart Local Court, HRB 451220 (as of 1 November 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €3,727,485 | 91.9% |
| Depreciation | €311,517 | 7.7% |
| Interest & Similar | €16,236 | 0.4% |
