B + G Ingenieure Bollinger und Grohmann GmbH provides design, planning and construction engineering services in the building sector and offers specialist planning particularly in facades, building physics, fire protection planning and, with emphasis, structural engineering. Embedded in an international corporate group, the company delivers services for both new construction projects and refurbishment of existing buildings and accompanies renowned projects to successful completion. According to the report, the company emphasizes highest quality standards, sustainability and technical innovation and conducts R&D together with universities to develop add-on modules for market-standard software. The head office is in Frankfurt am Main; branches exist in Berlin, Munich, Stuttgart, Düsseldorf and Hamburg, and a branch in Cologne is in the planning phase.
Das Erbringen von Entwurfs-, Planungs- und Konstruktionsleistungen im Bauwesen einschließlich aller damit verbundenen Nebendienste und Nebenleistungen.
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) Frankfurt am Main Local Court, HRB 54831 (as of 31 October 2026)
| Name | Type | City |
|---|---|---|
| Simon Ruppert | Geschäftsführer(in) | Linsengericht |
| Ulrich Storck | Geschäftsführer(in) | Frankfurt am Main |
Source: German Commercial Register (Handelsregister) Frankfurt am Main Local Court, HRB 54831 (as of 31 October 2026)
| Date | Event Type | Event |
|---|---|---|
| 14.03.2023 | Gesellschaftsvertrag amended | Gesellschaftsvertrag |
| 27.01.2009 | Business Address Change | Westhafenplatz 1, 60327 Frankfurt am Main |
| 15.12.2008 | Business Address Registered | Westhafenplatz 6, 60327 Frankfurt am Main |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 15.12.2008 | Capital Increase | +75.000 € | 100.000 € |
| 26.10.2004 | Share Capital Set | — | 25.000 € |
| Date | Contract | Value |
|---|---|---|
| 5.5.2026 | Supplier · Stadtwerke München GmbH | — |
Source: German Commercial Register (Handelsregister) Frankfurt am Main Local Court, HRB 54831 (as of 31 October 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | Rohergebnis€15.1M2 | €111,140 | €4,422,437 | — |
| 2023 | Rohergebnis€14.6M2 | €192,450 | €4,803,001 | — |
| 2022 | Rohergebnis€13.3M2 | -€972,264 | €4,034,620 | — |
| 2021 | Rohergebnis€13.6M2 | €267,847 | €4,236,685 | — |
| 2020 | Rohergebnis€13.2M2 | €781,783 | €4,113,124 | — |
| 2019 | small company1 | €623,588 | €4,201,617 | — |
| 2018 | small company1 | €303,915 | €3,084,060 | — |
| 2017 | small company1 | €340,421 | €2,077,435 | — |
| 2016 | small company1 | €386,741 | €1,979,407 | — |
| 2015 | small company1 | €323,686 | €2,177,616 | — |
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) Frankfurt am Main Local Court, HRB 54831 (as of 31 October 2026)
LUDES Architekten - Ingenieure GmbH
München · Ingenieurbüros für Tragwerksplanung
RSE+ Architekten Ingenieure GmbH
Kassel · Ingenieurbüros für bautechnische Gesamtplanung von Ingenieurbauwerken und Verkehrsanlagen
Delta ImmoTec GmbH
Geisenhausen · Ingenieurbüros für bautechnische Gesamtplanung von Ingenieurbauwerken und Verkehrsanlagen
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €9,314,395 | 95.9% |
| Depreciation | €382,326 | 3.9% |
| Interest & Similar | €15,970 | 0.2% |
