Kaibel & Sieber GmbH, based in Worms, operates in machinery and plant engineering and designs and builds systems for the processing of mineral fibre materials. Its customers include leading insulation manufacturers worldwide, and the company reports an export quota of approximately 81%. In fiscal year 2023 the company employed 69 staff; twelve highly qualified design engineers drive R&D, with key projects focused on cost optimization especially for packaging machines. Main revenue sources are machinery including installations with a 76.2% share and spare parts sales with a 22.1% share of total revenue (spare parts sales T€ 2,632).
Der Betrieb einer Maschinenfabrik sowie der Handel mit Maschinen aller Art, die Maschinenentwicklung und die der Maschinensteuerungsmechanismen, sei es in analoger oder digitaler Form.
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) Mainz Local Court, HRB 10077 (as of 30 October 2026)
| Name | Type | City |
|---|---|---|
| Marius Muth | Geschäftsführer(in) | Gimbsheim |
| Walter Siegel | Geschäftsführer(in) | Osthofen |
Source: German Commercial Register (Handelsregister) Mainz Local Court, HRB 10077 (as of 30 October 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | Rohergebnis€9.6M2 | €899,651 | €14,796,711 | — |
| 2023 | Rohergebnis€8.5M2 | €787,988 | €13,871,825 | — |
| 2022 | Rohergebnis€7.3M2 | €572,791 | €11,019,653 | — |
| 2021 | Rohergebnis€6.9M2 | €238,559 | €11,489,694 | — |
| 2020 | Rohergebnis€6.1M2 | -€656,941 | €9,889,262 | — |
| 2019 | Rohergebnis€8.4M2 | €659,445 | €11,228,761 | — |
| 2018 | Rohergebnis€6.3M2 | -€263,240 | €8,924,380 | — |
| 2017 | Rohergebnis€6.4M2 | €96,174 | €8,302,713 | — |
| 2016 | Rohergebnis€4.8M2 | -€1,399,210 | €8,525,842 | — |
| 2015 | Rohergebnis€6.3M2 | -€384,108 | €9,536,909 | — |
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) Mainz Local Court, HRB 10077 (as of 30 October 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €5,900,472 | 96.3% |
| Depreciation | €180,240 | 2.9% |
| Interest & Similar | €47,846 | 0.8% |
