Seidl & Partner GmbH Gesamtplanung im Bauwesen operates as a technical general planning firm providing complex engineering services in structural and civil engineering as well as technical building equipment. Its activities include planning services for residential projects, logistics properties, hotels, office and administrative buildings, and infrastructure measures related to ground and special civil engineering. The company is headquartered in Regensburg with operational branches in Munich and Frankfurt, and employed 114 staff as of 31 December 2024. As of the balance sheet date the company held a 20% stake in an Austrian planning subsidiary (Adenbeck GmbH) and conducts no in-house research and development. Seidl & Partner GmbH Gesamtplanung im Bauwesen is a family business.
Die gesamten Planungsleistungen für die Durchführung von Bauvorhaben aller 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) Regensburg Local Court, HRB 3644 (as of 3 November 2026)
| Name | Type | City |
|---|---|---|
| Robert Oelkers | Geschäftsführer(in) | Regensburg |
| Christian Seidl | Geschäftsführer(in) | Regensburg |
| Thomas Zepf | Geschäftsführer(in) | Regensburg |
Source: German Commercial Register (Handelsregister) Regensburg Local Court, HRB 3644 (as of 3 November 2026)
| Date | Event Type | Event |
|---|---|---|
| 07.10.2024 | Registered Seat Change | 60322 Frankfurt am Main, |
| 28.08.2024 | Gesellschaftsvertrag amended | Gesellschaftsvertrag |
| 06.12.2023 | Registered Seat Change | 81829 München, |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 03.09.2024 | Capital Increase | +25.000 € | 408.470 € |
| 02.09.2024 | Capital Increase | +51.128 € | 383.470 € |
| 29.08.2024 | Capital Increase | +51.128 € | 332.342 € |
Source: German Commercial Register (Handelsregister) Regensburg Local Court, HRB 3644 (as of 3 November 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | Rohergebnis€11.2M2 | €264,120 | €10,850,211 | — |
| 2023 | Rohergebnis€4.8M2 | €138,188 | €10,998,444 | — |
| 2022 | Rohergebnis€5.7M2 | €619,316 | €10,205,002 | — |
| 2021 | Rohergebnis€5.1M2 | €713,072 | €9,666,560 | — |
| 2020 | Rohergebnis€4.2M2 | €1,024,021 | €8,826,899 | — |
| 2019 | Rohergebnis€3M2 | €438,307 | €8,792,590 | — |
| 2018 | small company1 | — | €5,952,427 | — |
| 2017 | small company1 | — | €5,672,466 | — |
| 2016 | small company1 | — | €5,958,770 | — |
| 2015 | small company1 | — | €5,676,325 | — |
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) Regensburg Local Court, HRB 3644 (as of 3 November 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €7,793,151 | 95.0% |
| Depreciation | €178,758 | 2.2% |
| Interest & Similar | €229,096 | 2.8% |
