Rhein-Sieg Netz GmbH (RSN), a wholly-owned subsidiary of rhenag Rheinische Energie Aktiengesellschaft, is engaged in the planning, construction, and operation of grid infrastructure for energy, heat, and water. The company primarily operates as a gas distribution network operator in the Rhein-Sieg region as well as in the Rommerskirchen, Mettmann, and Freudenberg areas. Additionally, the company provides technical grid services for Westnetz GmbH and manages operations for various municipal water and heating networks. RSN is classified as a large corporation and is subject to state regulation under the Energy Industry Act (EnWG).
Die Planung, die Errichtung, der Betrieb, die Wartung, die Instandhaltung, die Instandsetzung, der Ausbau, der Erwerb, die Veräußerung, die An- und Verpachtung, die Vermarktung und die Nutzung von Netzanlagen und sonstigen Speicherungs- und Verteilungssystemen für Energie, Wärme und Wasser sowie die Erbringung von Dienstleistungen auf diesen Gebieten, wenn sie den Hauptzweck fördern.
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) Siegburg Local Court, HRB 13156 (as of 1 November 2026)
| Name | Type | City |
|---|---|---|
| Udo Zimmer | Geschäftsführer(in) | Binzenbach |
Source: German Commercial Register (Handelsregister) Siegburg Local Court, HRB 13156 (as of 1 November 2026)
| Year | Revenue | Profit | Balance | Employees |
|---|---|---|---|---|
| 2025 | €52,988,000 | €579,000 | €52,986,000 | — |
| 2024 | €48,659,000 | €5,523,000 | €57,404,000 | — |
| 2023 | €44,440,000 | €2,590,000 | €45,396,000 | — |
| 2022 | €43,481,000 | €1,958,000 | €58,124,000 | — |
| 2021 | €46,804,000 | €4,131,000 | €52,346,000 | — |
| 2020 | €46,427,000 | €0 | €51,024,000 | — |
| 2019 | €47,503,000 | €7,759,000 | €47,576,000 | — |
| 2018 | €39,507,000 | €3,755,000 | €51,514,000 | — |
| 2017 | €34,312 | €2,332 | €49,743 | — |
| 2016 | €38,036,000 | €13,850,000 | €61,966,000 | — |
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Source: German Commercial Register (Handelsregister) Siegburg Local Court, HRB 13156 (as of 1 November 2026)
| Cost type | Amount | Share |
|---|---|---|
| Personnel Costs | €13,543,000 | 28.5% |
| Material Costs | €31,325,000 | 65.8% |
| Depreciation | €2,715,000 | 5.7% |
| Interest & Similar | €12,000 | 0.0% |
