Janning Tiefbau GmbH, based in Twist, specializes in civil engineering and installation works for utility lines, notably water, electricity, district heating, gas and fiber optic lines. The company emerged from a legal form change on 17 December 2021 from the 2017-founded Janning Tiefbau GmbH & Co. KG and has been a subsidiary of Janning Holding GmbH since 1 October 2022, with several sister companies (e.g. Janning Bohrtechnik GmbH, Janning Rohrbau GmbH, Janning Galabau GmbH, Janning Grundbesitz GmbH). In fiscal year 2024 the company employed on average 141 staff, of which 125 were full-time. In 2024 Janning won numerous large contracts and long-term framework agreements in electricity, gas, water and fiber networks, notably strengthening its position in fiber-optic line construction and house connection works. Janning Tiefbau GmbH is a family business.
Der Tief-, Garten- und Landschaftsbau.
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) Osnabrück Local Court, HRB 217018 (as of 1 November 2026)
| Name | Type | City |
|---|---|---|
| Alexander Braun | Geschäftsführer(in) | Twist |
| Christian Janning | Geschäftsführer(in) | Geeste |
Source: German Commercial Register (Handelsregister) Osnabrück Local Court, HRB 217018 (as of 1 November 2026)
| Date | Event Type | Event |
|---|---|---|
| 17.12.2021 | Company Name Registered | Janning Tiefbau GmbH |
| 17.12.2021 | Registered Seat | Twist |
| 17.12.2021 | Business Address Registered | J.-D.-Lauenstein-Straße 24, 49767 Twist |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 17.12.2021 | Share Capital Set | — | 25.000 € |
| Date | Contract | Value |
|---|---|---|
| 24.7.2026 | Supplier · stadtwerker GmbH | — |
Source: German Commercial Register (Handelsregister) Osnabrück Local Court, HRB 217018 (as of 1 November 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | Rohergebnis€25.8M2 | €8,475,338 | €47,962,391 | — |
| 2023 | Rohergebnis€16.1M2 | €5,253,504 | €24,167,090 | — |
| 2022 | Rohergebnis€10.4M2 | €1,895,667 | €20,048,489 | — |
| 2021 | Rohergebnis€5.3M2 | €957,823 | €11,443,613 | — |
| 2020 | — | — | €5,582,283 | — |
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) Osnabrück Local Court, HRB 217018 (as of 1 November 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €6,755,169 | 75.0% |
| Depreciation | €2,137,130 | 23.7% |
| Interest & Similar | €109,637 | 1.2% |
