Wallstein Ingenieur-Gesellschaft m.b.H. carries out engineering planning, design and consulting in heat and plant engineering and manufactures and sells plants of the same and similar types (company object). Within the Wallstein group the company focuses on energy and environmental technology and supplies heat utilization systems for power plants and gas scrubber systems for production facilities on a turnkey basis from engineering through production and installation to commissioning and maintenance. The company is family-run, has been active in the group for more than 30 years, is domiciled in Recklinghausen (commercial register HRB 2698) and employed on average 23 salaried employees in the reporting year. As of 31 December 2023 the company held a 45% interest in Wallstein Thermal Technology Co. Ltd. Wallstein Ingenieur-Gesellschaft m.b.H. is a family business.
Ingenieurmäßige Planung, Konstruktion und Beratung im Bereich der Wärme- und Anlagentechnik sowie die Herstellung und der Vertrieb vom Anlagen gleicher und ähnlicher Art.
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) Recklinghausen Local Court, HRB 2698 (as of 31 October 2026)
| Name | Type | City |
|---|---|---|
| Jörg Stahlhut | Geschäftsführer(in) | Hünxe |
| Dirk Wallstein | Geschäftsführer(in) | Bochum |
| Malte Wallstein | Geschäftsführer(in) | Bochum |
Source: German Commercial Register (Handelsregister) Recklinghausen Local Court, HRB 2698 (as of 31 October 2026)
| Date | Event Type | Event |
|---|---|---|
| 15.10.2009 | Business Address Registered | Hubertusstraße 44, 45657 Recklinghausen |
| 15.10.2009 | Gesellschaftsvertrag amended | Gesellschaftsvertrag |
| 28.08.2003 | Company Name Registered | Wallstein Ingenieur-Gesellschaft m.b.H. |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 15.10.2009 | Capital Increase | +1.000 € | 27.000 € |
| 24.09.2008 | Capital Decrease | -24.000 € | 26.000 € |
| 28.08.2003 | Share Capital Set | — | 50.000 DM |
Source: German Commercial Register (Handelsregister) Recklinghausen Local Court, HRB 2698 (as of 31 October 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | Rohergebnis€6.3M2 | €471,892 | €11,584,741 | — |
| 2023 | Rohergebnis€9.4M2 | €1,121,296 | €14,443,461 | — |
| 2022 | Rohergebnis€7.4M2 | €47,612 | €8,033,573 | — |
| 2021 | Rohergebnis€6.5M2 | €763,809 | €10,943,560 | — |
| 2020 | Rohergebnis€8.5M2 | €1,312,632 | €9,873,077 | — |
| 2019 | Rohergebnis€5.4M2 | €1,108,299 | €9,881,369 | — |
| 2018 | Rohergebnis€5.6M2 | €196,607 | €8,643,304 | — |
| 2017 | Rohergebnis€7.9M2 | €968,257 | €8,335,419 | — |
| 2016 | ≤ €12M1 | €496,848 | €13,615,439 | — |
| 2015 | ≤ €12M1 | €273,053 | €6,670,394 | — |
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) Recklinghausen Local Court, HRB 2698 (as of 31 October 2026)
Dipl.-Ing. Bernd Gebauer Ingenieur GmbH
München · Sonstige Ingenieurbüros
WÜRZ GMBH Rekuperative Wärmetechnik
Willich · Herstellung von sonstigen nicht wirtschaftszweigspezifischen Maschinen a. n. g.
Ahlenberg Ingenieure GmbH
Herdecke · Ingenieurbüros für Fachplanung von sonstigen technischen Anlagen
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €5,518,259 | 95.6% |
| Depreciation | €155,604 | 2.7% |
| Interest & Similar | €97,429 | 1.7% |
