Hydro-Elektrik GmbH plans, manufactures, installs and services electrical and hydraulic systems in water technology focusing on water storage, water treatment and automation technology. The family-owned company was founded in 1971, has been headquartered in Ravensburg-Obereschach since 1973 and all shares are family-held. In 2024 activities were concentrated in Germany, Norway, Austria, Switzerland, Luxembourg and Romania, and the company markets products including the “HydroSystemTanks” range. Group holdings include 90% of RWT GmbH, 100% of Hydro-Elektrik AS (Norway) and 100% of Kuechle GmbH (stainless steel manufacturing); the company employed an average of 91 people in 2024.
Die Planung, Fertigung und Montage sowie der Service von elektrischen und hydraulischen Systemen im Bereich der Wassertechnik mit den Schwerpunkten Wasserspeicherung, Wasseraufbereitung und Automatisierungstechnik.
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) Ulm Local Court, HRB 550171 (as of 31 October 2026)
| Name | Type | City |
|---|---|---|
| Andrea Strobel | Geschäftsführer(in) | Ravensburg |
| Karl Weißhaupt | Geschäftsführer(in) | Vogt |
Source: German Commercial Register (Handelsregister) Ulm Local Court, HRB 550171 (as of 31 October 2026)
| Date | Contract | Value |
|---|---|---|
| 22.6.2026 | Supplier · Stadtwerke Pirmasens Versorgungs GmbH | 419.458 € |
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | Rohergebnis€13.1M2 | €1,315,243 | €21,694,731 | — |
| 2023 | Rohergebnis€12.5M2 | €986,826 | €20,386,538 | — |
| 2022 | Rohergebnis€11.3M2 | €678,441 | €18,942,767 | — |
| 2021 | Rohergebnis€10.8M2 | €531,207 | €17,085,201 | — |
| 2020 | Rohergebnis€10.7M2 | €368,544 | €17,836,625 | — |
| 2019 | Rohergebnis€10.2M2 | €556,914 | €18,264,571 | — |
| 2018 | Rohergebnis€8.9M2 | €393,655 | €16,635,695 | — |
| 2017 | Rohergebnis€8.4M2 | €181,953 | €15,884,658 | — |
| 2016 | Rohergebnis€9.2M2 | €822,760 | €14,508,260 | — |
| 2015 | Rohergebnis€7.7M2 | €163,688 | €13,368,603 | — |
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) Ulm Local Court, HRB 550171 (as of 31 October 2026)
Knapheide Schlauchtechnik GmbH
Beckum · Herstellung von hydraulischen und pneumatischen Komponenten und Systemen
TLV EURO Engineering GmbH
Waibstadt · Herstellung von hydraulischen und pneumatischen Komponenten und Systemen
Knapheide Solutions GmbH
Beckum · Herstellung von hydraulischen und pneumatischen Komponenten und Systemen
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €7,665,258 | 84.0% |
| Depreciation | €1,379,758 | 15.1% |
| Interest & Similar | €82,994 | 0.9% |
