Green IT Das Systemhaus GmbH is a vendor-independent system house specializing in holistic, sustainable, energy-efficient and economical IT and printing concepts. The company was founded in 2012 and provides service and consulting as well as trade in IT hardware and software in the areas of print/copy/scan/fax, IT infrastructure, unified communications and enterprise content management (ECM/DMS). As of 31 December 2024 the company employed 218 people and achieved a net profit of €2,014k with earnings before tax (EBT) of €3,215k. Since 2019 Green IT has focused on recurring revenue; recurring income increased by 12.51% in 2024 versus the prior year and the company invested €1,670k in intangible assets in 2024 (of which €1,600k for customer relationships).
Das ganzheitliche Management von Informationen, die Erbringung von Service- & Beratungs-Dienstleistungen, der Handel mit IT-Hardware & Software aus den Bereichen Druck/Kopie/Scan/Fax, IT-Infrastruktur, Unified Communications sowie Enterprise Content Management (ECM / DMS).
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) Dortmund Local Court, HRB 25106 (as of 5 November 2026)
| Name | Type | City |
|---|---|---|
| Thomas Lesser | Geschäftsführer(in) | Dortmund |
| Jan Schriewer | Geschäftsführer(in) | Witten |
| Florian Stäwen | Geschäftsführer(in) | Dortmund |
Source: German Commercial Register (Handelsregister) Dortmund Local Court, HRB 25106 (as of 5 November 2026)
| Date | Event Type | Event |
|---|---|---|
| 05.02.2026 | Business Address Change | Heinrich-Hertz-Str. 6, 44227 Dortmund |
| 11.05.2022 | Business Purpose Update | Das ganzheitliche Management von Informationen, die Erbringung von Service& Beratungs-Dienstleistungen, der Handel mit IT-Hardware & Software aus den Bereichen Druck/Kopie/Scan/Fax, ITInfrastruktur, Unified Communications sowie Enterprise Content Management (ECM / DMS). |
| 11.05.2022 | Gesellschaftsvertrag amended | Gesellschaftsvertrag |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 14.01.2014 | Capital Increase | +100.000 € | 300.000 € |
| 06.02.2013 | Capital Increase | +175.000 € | 200.000 € |
| 07.09.2012 | Share Capital Set | — | 25.000 € |
| Date | Contract | Value |
|---|---|---|
| 7.8.2025 | Supplier · Technische Universität Braunschweig - Abteilung 22 - Vergaberecht und Beschaffung, Zentrale Vergabstelle - | — |
Source: German Commercial Register (Handelsregister) Dortmund Local Court, HRB 25106 (as of 5 November 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2025 | Rohergebnis€24.5M2 | €1,776,799 | €24,546,093 | — |
| 2024 | Rohergebnis€22.3M2 | €2,021,232 | €22,891,221 | — |
| 2023 | Rohergebnis€19.6M2 | €2,008,569 | €20,419,788 | — |
| 2022 | Rohergebnis€17.9M2 | €2,054,633 | €18,047,097 | — |
| 2021 | Rohergebnis€15M2 | €1,803,825 | €16,105,929 | — |
| 2020 | Rohergebnis€13.3M2 | €1,916,013 | €12,500,255 | — |
| 2019 | Rohergebnis€11.8M2 | €1,582,571 | €10,954,240 | — |
| 2018 | Rohergebnis€10M2 | €1,490,808 | €8,532,223 | — |
| 2017 | Rohergebnis€9M2 | €1,384,590 | €8,775,278 | — |
| 2016 | Rohergebnis€9.5M2 | €1,702,004 | €7,083,152 | — |
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) Dortmund Local Court, HRB 25106 (as of 5 November 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €14,772,425 | 95.2% |
| Depreciation | €486,534 | 3.1% |
| Interest & Similar | €258,949 | 1.7% |
