Potthoff GmbH is a company based in Erkrath. It is registered in the commercial register of the Wuppertal local court under HRB 13510. The company was founded in 1992. Potthoff GmbH is a family business. The company is a small company under § 267 (1) HGB and is therefore not required to publish a profit-and-loss statement.
der Betrieb eines Ingenieurbüros, insbesondere die Erbringung von Ingenieurleistungen für technische Gebäudeausrüstungen im Krankenhausbau und damit zusammenhängende Dienstleistungen.
Converted using the official Destatis and Eurostat correspondence tables; ISIC Rev. 4 is the United Nations' international industry classification.
Source: German Commercial Register (Handelsregister) Wuppertal Local Court, HRB 13510 (as of 25 October 2026)
| Name | Type | City |
|---|---|---|
| Marc Grevenbrock | Geschäftsführer(in) | Velen-Ramsdorf |
| Georg Potthoff | Geschäftsführer(in) | Versmold |
Source: German Commercial Register (Handelsregister) Wuppertal Local Court, HRB 13510 (as of 25 October 2026)
| Date | Contract | Value |
|---|---|---|
| 23.10.2026 | Planungsleistungen Ersatzneubau Marienhaus Klinikum Hetzelstift Los 3 Heizung, Lüftung, Sanitär u.a. Supplier · Marienhaus Kliniken GmbH | — |
| 7.10.2026 | Supplier · LWL - Bau- und Liegenschaftsbetrieb (LWL-BLB) | — |
| 13.8.2026 | Fachplanung Technische Ausrüstung gem. § 55 HOAI im Vorhaben "L022 - Umbau Haus 4" Supplier · Klinikum Lippe GmbH | — |
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | small company1 | €57,409 | €4,639,884 | 88 |
| 2023 | ≤ €15M1 | €397,398 | €6,371,218 | 87 |
| 2022 | small company1 | -€62,381 | €5,774,753 | 83 |
| 2021 | small company1 | -€247,011 | €4,957,905 | 88 |
| 2020 | small company1 | -€27,170 | €3,209,422 | 99 |
| 2019 | small company1 | €15,862 | €3,590,429 | 104 |
| 2018 | small company1 | -€146,562 | €3,946,240 | 104 |
| 2017 | small company1 | €166,169 | €4,621,936 | 89 |
| 2016 | small company1 | €194,356 | €3,676,216 | 77 |
| 2015 | small company1 | €122,007 | €2,505,763 | — |
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.
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Source: German Commercial Register (Handelsregister) Wuppertal Local Court, HRB 13510 (as of 25 October 2026)
