Stolz & Seng Kunststoffspritzguss Formenbau GmbH manufactures complex, high-quality tools and molds for injection molding and provides solutions for thermoplastic injection molding. Its products include technical precision parts, micro injection-molded parts, multi-component parts, and filters and sieves; it also offers further processing steps such as assembly. The company produces mainly to customer order and works with large internationally active customers in automotive, electrical engineering, mechanical engineering and medical technology. Organizationally it is divided into injection molding, toolmaking and further processing; the injection molding unit generates about 85% of total revenue and the head office is in Donaueschingen-Aasen with no branches. Stolz & Seng Kunststoffspritzguss Formenbau GmbH is a family business.
Die Herstellung von Kunststoffspritzteilen sowie die Fertigung von Formen hierfür.
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) Freiburg Local Court, HRB 611784 (as of 30 October 2026)
| Name | Type | City |
|---|---|---|
| Christian Seng | Geschäftsführer(in) | Donaueschingen |
Source: German Commercial Register (Handelsregister) Freiburg Local Court, HRB 611784 (as of 30 October 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | Rohergebnis€12.1M2 | €1,261,044 | €8,531,587 | — |
| 2023 | Rohergebnis€10.9M2 | €364,653 | €8,538,582 | — |
| 2022 | Rohergebnis€11.7M2 | €954,208 | €9,741,886 | — |
| 2021 | Rohergebnis€9.2M2 | €411,443 | €7,046,754 | — |
| 2020 | Rohergebnis€8M2 | €193,378 | €6,302,168 | — |
| 2019 | Rohergebnis€8.1M2 | €91,450 | €5,860,436 | — |
| 2018 | Rohergebnis€8.6M2 | €880,342 | €6,434,347 | — |
| 2017 | small company1 | €665,348 | €5,669,980 | — |
| 2016 | small company1 | €710,374 | €5,116,612 | — |
| 2015 | small company1 | €871,243 | €4,251,306 | — |
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) Freiburg Local Court, HRB 611784 (as of 30 October 2026)
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| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €7,066,427 | 92.1% |
| Depreciation | €482,928 | 6.3% |
| Interest & Similar | €126,705 | 1.7% |
