Based in Essen, con|energy AG provides consulting services for the energy industry. Its operational scope also includes the development, maintenance, and distribution of software solutions, as well as the organization of conferences and trade fairs. Furthermore, the company is active in advertising consulting and brokerage and holds investments in other companies, particularly within the energy sector. The company employs an average of 14 staff members. The company is a small company under § 267 (1) HGB and is therefore not required to publish a profit-and-loss statement.
a) Beratung auf den Gebieten der Energiewirtschaft, b) Beteiligung an anderen Unternehmen, insbesondere an Unternehmen der Energiewirtschaft und an Beratungs- und/oder Handelsunternehmen, auch anderer Branchen, c) Vertrieb, Wartung und Entwicklung von Software, d) Veranstaltung von Konferenzen und Messen, e) Anzeigenberatung und Vermittlung.
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) Essen Local Court, HRB 13834 (as of 1 November 2026)
| Name | Type | City |
|---|---|---|
| Roman Dudenhausen | Vorstand | Essen |
| Niels Ellwanger | Vorstand | Essen |
| Company | Location |
|---|---|
| Essen | |
 green | connector GmbH | Essen |
Source: German Commercial Register (Handelsregister) Essen Local Court, HRB 13834 (as of 1 November 2026)
| Date | Event Type | Event |
|---|---|---|
| 20.07.2021 | Registered Seat Change | Nach Änderung lautet nunmehr die |
| 20.07.2021 | Business Address Change | Norbertstraße 3, 45131 Essen |
| 22.12.2015 | Satzung amended | Satzung |
| Date | Type | Change | Total Capital |
|---|---|---|---|
| 22.12.2015 | Capital Decrease | -27.544 € | 494.453 € |
| 10.05.2012 | Capital Decrease | -27.500 € | 521.997 € |
| 13.06.2005 | Capital Increase | +2.575 € | 549.497 € |
Source: German Commercial Register (Handelsregister) Essen Local Court, HRB 13834 (as of 1 November 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2024 | ≤ €15M1 | €668,439 | €13,037,326 | — |
| 2023 | ≤ €15M1 | €1,262,364 | €13,114,198 | — |
| 2022 | €9,482,495 | €10,261,822 | €16,908,402 | — |
| 2021 | €12,536,732 | €136,113 | €11,711,782 | — |
| 2020 | €13,371,229 | €1,089,987 | €12,639,437 | — |
| 2019 | €14,356,342 | €1,050,225 | €12,631,225 | — |
| 2018 | €13,398,204 | €808,998 | €12,225,450 | — |
| 2017 | €14,413,809 | €1,205,995 | €12,023,585 | — |
| 2016 | €13,258,584 | €650,829 | €10,681,106 | — |
| 2015 | €12,021,511 | €655,412 | €10,183,892 | — |
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) Essen Local Court, HRB 13834 (as of 1 November 2026)
Novum-RGI Germany GmbH
Nürnberg · Alle anderen Tätigkeiten typischerweise freiberuflicher, wissenschaftlicher oder technischer Art a. n. g. (ohne Künstler- und Modelagenturen)
Audi Business Innovation GmbH
Ingolstadt · Alle anderen Tätigkeiten typischerweise freiberuflicher, wissenschaftlicher oder technischer Art a. n. g. (ohne Künstler- und Modelagenturen)
emeis Deutschland Immobilien Services GmbH
Frankfurt am Main · Alle anderen Tätigkeiten typischerweise freiberuflicher, wissenschaftlicher oder technischer Art a. n. g. (ohne Künstler- und Modelagenturen)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €13,591,875 | 93.9% |
| Material Costs | €683,441 | 4.7% |
| Depreciation | €204,373 | 1.4% |
| Interest & Similar | €2,719 | 0.0% |
