Jak. Gaertner & Soehne GmbH operates a civil engineering company headquartered in Lampertheim and is registered with the Darmstadt local court under HR B 60114. Its service offering includes civil engineering, pipeline construction, road construction, track construction, development of building areas and flushing/drilling works. Main clients are predominantly energy utilities, developers of building areas and cities and municipalities. The company employed on average 53 blue-collar and 6 white-collar staff and reports a very high equity ratio of 85.6% and cash holdings amounting to 54.0% of the balance sheet. Jak. Gärtner & Söhne GmbH is a family business.
Der Betrieb einer Tiefbauunternehmung.
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) Darmstadt Local Court, HRB 60114 (as of 18 October 2026)
| Name | Type | City |
|---|---|---|
| Anna Gärtner | Geschäftsführer(in) | Lampertheim |
| Klaus Gärtner | Geschäftsführer(in) | Weinheim-Lützelsachsen |
Source: German Commercial Register (Handelsregister) Darmstadt Local Court, HRB 60114 (as of 18 October 2026)
| Date | Event Type | Event |
|---|---|---|
| 19.10.2015 | Business Address Change | Industriestraße 27-31, 68623 Lampertheim |
| 19.10.2015 | Gesellschaftsvertrag amended | Gesellschaftsvertrag |
| 05.07.2010 | Registered Seat Change | eingetragen als |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 15.02.2008 | Capital Decrease | -97.500 € | 102.500 € |
| 14.09.2006 | Share Capital Set | — | 200.000 DM |
| Date | Contract | Value |
|---|---|---|
| 19.6.2025 | Supplier · Thüga Aktiengesellschaft | — |
Source: German Commercial Register (Handelsregister) Darmstadt Local Court, HRB 60114 (as of 18 October 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2025 | Rohergebnis€8.3M2 | €1,712,077 | €17,130,690 | — |
| 2024 | Rohergebnis€7.9M2 | €1,429,470 | €16,184,258 | — |
| 2023 | Rohergebnis€8.9M2 | €2,114,721 | €16,154,888 | — |
| 2022 | Rohergebnis€7.5M2 | €1,122,519 | €14,304,075 | — |
| 2021 | Rohergebnis€8.5M2 | €1,816,853 | €14,258,323 | — |
| 2020 | Rohergebnis€8.1M2 | €1,532,865 | €12,747,229 | — |
| 2019 | Rohergebnis€7.9M2 | €1,190,640 | €11,170,324 | — |
| 2018 | Rohergebnis€6.6M2 | €670,167 | €9,717,484 | — |
| 2017 | Rohergebnis€7M2 | €708,427 | €9,264,929 | — |
| 2016 | Rohergebnis€7.3M2 | €690,089 | €8,843,344 | — |
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) Darmstadt Local Court, HRB 60114 (as of 18 October 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €4,303,791 | 88.2% |
| Depreciation | €578,242 | 11.8% |
