Heinrich Weinbuch GmbH was founded in February 1972 and operates as a traditional craft business in sanitary, heating, ventilation, bathroom and tinsmithing services. Its service portfolio includes tinsmith and installation work as well as the planning, construction and repair of sanitary, heating, ventilation and air-conditioning systems and the trading of related items. The company states its customer target group includes private and commercial customers up to large industrial companies; at year-end 87 employees were employed and the average number of employees during the fiscal year was 85. In the management report the company characterizes itself as having a solid market position. Heinrich Weinbuch GmbH is a family business.
Durchführung von Flaschner- und Installationsarbeiten, die Planung, der Bau und die Reparatur von Sanitär-, Heizungs-, Lüftungs- und Klimaanlagen jeder Art sowie der Handel mit den dazugehörigen Gegenständen.
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 540759 (as of 31 October 2026)
| Name | Type | City |
|---|---|---|
| Manuel Weinbuch | Geschäftsführer(in) | Plochingen |
| Martin Weinbuch | Geschäftsführer(in) | Lauterstein |
| Thomas Weinbuch | Geschäftsführer(in) | Lauterstein |
Source: German Commercial Register (Handelsregister) Ulm Local Court, HRB 540759 (as of 31 October 2026)
| Date | Contract | Value |
|---|---|---|
| 18.8.2026 | Supplier · Vermögen und Bau Baden-Württemberg, Amt Ludwigsburg | 468.562 € |
| 10.2.2026 | Supplier · Max-Planck-Gesellschaft Abt.III | — |
| 28.1.2026 | Heizungsinstallationen Supplier · Stadt Süßen | 418.707 € |
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | Rohergebnis€7.8M2 | €448,617 | €13,795,413 | — |
| 2023 | Rohergebnis€6.8M2 | €391,134 | €15,772,010 | — |
| 2022 | Rohergebnis€6.5M2 | €350,157 | €11,490,226 | — |
| 2021 | Rohergebnis€7.6M2 | €577,146 | €9,618,789 | — |
| 2020 | Rohergebnis€8.9M2 | €1,413,695 | €5,157,217 | — |
| 2019 | Rohergebnis€6.7M2 | €431,324 | €4,139,761 | — |
| 2018 | small company1 | €229,578 | €3,856,269 | — |
| 2017 | small company1 | €158,057 | €3,616,757 | — |
| 2016 | small company1 | €131,416 | €3,630,438 | — |
| 2015 | small company1 | €128,472 | €3,377,802 | — |
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 540759 (as of 31 October 2026)
S + H Stelzig GmbH
Nürnberg · Gas-, Wasser-, Heizungs- sowie Lüftungs- und Klimainstallation
K & S Gesellschaft für Gebäudetechnik mbH
Oberhausen · Gas-, Wasser-, Heizungs- sowie Lüftungs- und Klimainstallation
HRS Ingenieur- und Rohrleitungsbau GmbH
Au i.d. Hallertau · Gas-, Wasser-, Heizungs- sowie Lüftungs- und Klimainstallation
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €5,221,717 | 96.4% |
| Depreciation | €144,362 | 2.7% |
| Interest & Similar | €52,016 | 1.0% |
