ZES ZIMMER Electronic Systems GmbH designs, develops, manufactures and sells precision power measurement instruments, current sensors and voltage transformers as well as related system and software solutions. Founded in 1980, the company is based in Oberursel (Taunus) and sells internationally through independent distributors; typical customer areas include electric drive technology, renewable energies, household appliances and transformers. In the 2023/24 financial year the company generated revenue of 9,796 T€ (the second-highest revenue in its history) and employed 64 people at year-end, including seven trainees, one working student and one intern. In addition, ZES ZIMMER operates a DAkkS-accredited calibration laboratory and pursues a strategy of modular, configurable development of power measurement technology.
Die Entwicklung, Fertigung und der Vertrieb von elektronischen Geräten, Systemen und Teilsystemen. Ferner ist Gegenstand des Unternehmens der Verkauf, der Vertrieb, die Vermarktung, die Wartung, die Reparatur, der Service, das Testen, die Systemintegration, das System- und Software-Engineering von elektronischen Geräten, insbesondere in den Bereichen der Test und Messtechnik, der sicheren Funkkommunikation, der Broadcast- und Medientechnik, der Funküberwachung, der Funkortung und ähnlichen Präzisionsinstrumenten sowie Lösungen im Bereich der IT-Sicherheit.
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) Bad Homburg v.d.H. Local Court, HRB 2449 (as of 30 October 2026)
| Name | Type | City |
|---|---|---|
| Gerald Tietscher | Geschäftsführer(in) | Freising |
Source: German Commercial Register (Handelsregister) Bad Homburg v.d.H. Local Court, HRB 2449 (as of 30 October 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2025 | Rohergebnis€4.4M2 | -€2,454,312 | €9,948,871 | — |
| 2024 | Rohergebnis€7.9M2 | €1,406,924 | €14,873,833 | — |
| 2023 | Rohergebnis€7.7M2 | €1,909,150 | €14,320,396 | — |
| 2022 | ≤ €12M1 | — | €11,738,886 | — |
| 2021 | ≤ €12M1 | — | €10,502,780 | — |
| 2020 | ≤ €12M1 | — | €9,447,564 | — |
| 2019 | ≤ €12M1 | — | €9,162,380 | — |
| 2018 | ≤ €12M1 | — | €8,978,279 | — |
| 2017 | ≤ €12M1 | — | €7,948,036 | — |
| 2016 | ≤ €12M1 | — | €6,905,947 | — |
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) Bad Homburg v.d.H. Local Court, HRB 2449 (as of 30 October 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €5,804,776 | 97.1% |
| Depreciation | €174,623 | 2.9% |
