optek-Danulat GmbH, headquartered in Essen and registered under HRB 6816, develops, manufactures and sells measurement systems for real-time monitoring of liquids directly in the process. Its products serve global niche markets including biotechnology, chemicals and the food & beverage industry. In biopharmaceutical processes the company’s measurement devices are used, for example, to monitor quality during production of COVID vaccines. In 2023/2024 the company employed an average of 136 people and maintains an internal R&D department with three dedicated laboratories for electronics/EMC development, optics and liquid. optek-Danulat GmbH is a family business.
Die Entwicklung, die Herstellung und der Vertrieb von optischen Meßgeräten und anderen technischen Geräten sowie ähnlichen Produkten.
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) Essen Local Court, HRB 6816 (as of 21 October 2026)
| Name | Type | City |
|---|---|---|
| Klaus Sonderschäfer | Geschäftsführer(in) | Achberg |
| Sebastian Wieczorek | Geschäftsführer(in) | Herne |
Source: German Commercial Register (Handelsregister) Essen Local Court, HRB 6816 (as of 21 October 2026)
| Date | Event Type | Event |
|---|---|---|
| 06.07.2010 | Business Address Registered | Emscherbruchallee 2, 45356 Essen |
| 23.08.2006 | Gesellschaftsvertrag amended | Gesellschaftsvertrag |
| 26.06.2001 | Company Name Registered | optek-Danulat GmbH |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 23.08.2006 | Capital Decrease | -120.000 € | 130.000 € |
| 26.06.2001 | Share Capital Set | — | 250.000 DM |
Source: German Commercial Register (Handelsregister) Essen Local Court, HRB 6816 (as of 21 October 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2025 | Rohergebnis€20.2M2 | €3,643,426 | €25,511,599 | — |
| 2024 | Rohergebnis€18.5M2 | €2,796,170 | €28,072,330 | — |
| 2023 | Rohergebnis€20.2M2 | €3,466,844 | €33,188,656 | — |
| 2022 | Rohergebnis€28.4M2 | €9,194,860 | €30,318,929 | — |
| 2021 | Rohergebnis€26M2 | €9,188,633 | €24,931,604 | — |
| 2020 | Rohergebnis€15.7M2 | €3,138,545 | €13,443,444 | — |
| 2019 | Rohergebnis€14.6M2 | €2,456,360 | €11,985,359 | — |
| 2018 | Rohergebnis€13.5M2 | €2,706,565 | €10,421,211 | — |
| 2017 | Rohergebnis€13M2 | €2,618,745 | €9,621,466 | — |
| 2016 | Rohergebnis€12.2M2 | €2,412,155 | €8,613,170 | — |
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) Essen Local Court, HRB 6816 (as of 21 October 2026)
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| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €10,015,599 | 96.9% |
| Depreciation | €314,803 | 3.0% |
| Interest & Similar | €9,677 | 0.1% |
