ef.Ruhr GmbH promotes research projects in the field of energy research and develops strategies for the communication, transfer and marketing of research and development results in the energy sector. Revenues for the 2024 financial year amount to EUR 1,602,208.37 and result from consulting and advisory services to industry as well as from publicly funded projects. The company is domiciled in Dortmund and is registered in the Dortmund local court commercial register under HRB 25893. On average the company employed 9 staff (7 full-time, 2 part-time) and the share capital remains unchanged at EUR 33,300.00, fully paid in.
Die Förderung von Forschungsvorhaben im Bereich der Energieforschung sowie die Entwicklung und Realisierung von Strategien für die Kommunikation, den Transfer und die Vermarktung von Forschungs- und Entwicklungsergebnissen im Bereich der Energieforschung
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 25893 (as of 2 November 2026)
| Name | Type | City |
|---|---|---|
| Christian Wagner | Geschäftsführer(in) | Ennepetal |
Source: German Commercial Register (Handelsregister) Dortmund Local Court, HRB 25893 (as of 2 November 2026)
| Date | Event Type | Event |
|---|---|---|
| 20.01.2021 | Business Address Change | Emil-Figge-Str. 76, 44227 Dortmund |
| 21.08.2013 | Company Name Registered | ef.Ruhr GmbH |
| 21.08.2013 | Registered Seat | Dortmund |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 21.08.2013 | Share Capital Set | — | 33.300 € |
| Date | Contract | Value |
|---|---|---|
| 10.9.2025 | Supplier · IQIB - Institut für qualifizierende Innovationsforschung und -beratung GmbH | 261.000 € |
Source: German Commercial Register (Handelsregister) Dortmund Local Court, HRB 25893 (as of 2 November 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | €1,602,208 | €203,420 | €1,571,978 | 9 |
| 2023 | €1,460,129 | €314,955 | €1,433,871 | 9 |
| 2022 | €1,701,593 | €264,879 | €1,298,238 | 14 |
| 2021 | €1,728,605 | €182,192 | €1,018,854 | 11 |
| 2020 | €925,451 | €31,730 | €1,062,902 | 11 |
| 2018 | small company1 | €7,993 | €927,698 | 6 |
| 2017 | small company1 | €97,709 | €447,721 | 6 |
| 2016 | small company1 | €20,132 | €659,208 | — |
| 2012 | small company1 | €50,954 | €924,662 | — |
| 2011 | — | -€47,360 | €591,264 | — |
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) Dortmund Local Court, HRB 25893 (as of 2 November 2026)
| Cost type | Amount | Share |
|---|---|---|
| Cost of Goods Sold | €120,240 | 100.0% |
