STADTWERKE-NETZDIENSTE Dreieich und Neu-Isenburg GmbH

What STADTWERKE-NETZDIENSTE Dreieich und Neu-Isenburg GmbH does

STADTWERKE-NETZDIENSTE Dreieich und Neu-Isenburg GmbH (SDNI) is a regulated utility network operator domiciled in Dreieich, Hesse, Germany, that operates and maintains the electricity, gas, water, and heating distribution networks for two municipalities — Dreieich and Neu-Isenburg — on behalf of its two 100% parent companies, Stadtwerke Dreieich and Stadtwerke Neu-Isenburg. The company began operations on January 1, 2024, as a joint municipal subsidiary bundling the previously independent technical workforce and competencies of both parent utilities. Its core products comprise four network operations: a 1,028 km electricity network serving 97,000 meters, a 394 km gas network, a 474 km water network serving approximately 90,000 customers, and a heating supply network; plus metering services (Messstellenbetrieb), 24/7 emergency response with sub-30-minute guaranteed response times (Entstörungsdienst), network planning and construction (Netzplanung und Netzbau), network maintenance (Netzinstandhaltung), and a digital network connection portal (Netzportal) for regulatory-compliant connection requests under §§6, 19 NAV. The platform supports connections for PV systems, EV charging stations, heat pumps, and meters, and integrates with a street lighting fault reporting portal.

The business model is a managed services / regulated network operations model. SDNI generates revenue by operating and maintaining the network and metering infrastructure for its two parent municipal utilities, with revenue derived from regulated network charges under German energy law (EnWG) and energy-adjacent services such as PV/EV/heat-pump connection processing. The company employs approximately 10 people, operates exclusively within the dual municipal territories of Dreieich (PLZ 63303) and Neu-Isenburg (PLZ 63263) in the Offenbach district, and is led by joint Managing Directors Uwe Hildebrandt and Denis Wiesner. The company is a private limited company (GmbH) with no external shareholders, no disclosed funding, and no public revenue figures. Customer acquisition is entirely captive, anchored in the long-term service contracts with its two parent municipal utilities.

Name

STADTWERKE-NETZDIENSTE Dreieich und Neu-Isenburg GmbH

Legal name

Stadtwerke-Netzdienste Dreieich und Neu-Isenburg GmbH

Website

https://sw-netzdienste.de

Company type

Private

Founded year

2024

Operating status

Operating

Headcount range

1–10 employees

Short description

SDNI is a regulated utility network operator that operates and maintains the electricity, gas, water, and heating distribution networks for two German municipalities — Dreieich and Neu-Isenburg — on behalf of its two 100% parent municipal utilities, Stadtwerke Dreieich and Stadtwerke Neu-Isenburg.

Ownership category

akta.pro rank

Product category

Utility Network Services

NAICS

Electric Power Distribution (221122), Water Supply and Irrigation Systems (221310), Steam and Air-Conditioning Supply (221330)

SIC

Electric, Gas & Sanitary Services (4900), Electric Services (4911)

akta.pro primary industry

DER Program Operations & Customer/Installer Enablement (Applications, Portals, Inspections) (EUADALAO)

Keywords

• Utility network operations
• Electricity grid services
• Gas distribution network
• Water supply network
• Metering services

Headquarters

HQ city

Dreieich

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Technology or R&D, Supply Chain

Revenue model

1. Netzbetrieb und Messwesen (Grid Operations and Metering): The company generates revenue by operating and maintaining energy, water, and heating supply networks as well as meter operations for its two parent companies, Stadtwerke Dreieich and Stadtwerke Neu-Isenburg. Revenue is derived from regulated network charges and energy-related services under its role as a 100% subsidiary of both municipal utilities. As a newly formed entity (effective January 1, 2024), it bundles specialized workforce and competencies to manage infrastructure investments in the energy system transformation.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

SDNI is a municipal utility network services provider that plans, builds, operates, and maintains the electricity (1,028 km), gas (394 km), water (474 km), and heating distribution networks as well as metering infrastructure for its two parent municipal utilities, Stadtwerke Dreieich and Stadtwerke Neu-Isenburg. The company runs a 24/7 emergency response service with sub-30-minute response times, processes network connection requests via a digital portal, and supports the integration of energy-transition assets such as photovoltaic systems, EV charging stations, and heat pumps across its two service territories in Hesse, Germany.

Product overview

Stadtwerke-Netzdienste Dreieich und Neu-Isenburg GmbH (SDNI) operates as a unified utility network services provider managing four core infrastructure networks: electricity (Stromnetz, 1,028 km serving 97,000 meters), gas (Gasnetz, 394 km), water (Wassernetz, 474 km serving ~90,000 customers), and heat (Wärmeversorgung). The company provides an integrated portfolio combining physical network operations (planning, construction, maintenance via Netzinstandhaltung), 24/7 emergency response (Entstörungsdienst with <30 minute response time), and metering services (Messstellenbetrieb). Digital services are delivered through the Netzportal for standardized network connection requests per NAV regulations, while the Straßenbeleuchtungs-Störungsportal enables public lighting disturbance reporting. Founded January 1, 2024, as a 100% subsidiary of Stadtwerke Dreieich and Stadtwerke Neu-Isenburg, the company bundles technical expertise across independent operational areas to ensure supply security and drive energy system transformation.

Differentiator

Problem solved

Functional benefit

Products and services

• Stromnetzbetrieb (Electricity Network Operations)
• Gasnetzbetrieb (Gas Network Operations)
• Wasserversorgungsnetz (Water Supply Network Operations)
• Wärmeversorgungsnetz (Heating Supply Network Operations)
• Messstellenbetrieb (Metering Operations) Installation and operation of secure and reliable meters and measuring devices for electricity, gas, water, and heat across the service territory, covering 97,000 meters in total.
• Entstörungsdienst (24/7 Emergency Response Service)
• Netzportal (Digital Network Connection Portal)

Quantifiable outcome

• Response time of under 30 minutes for emergency fault response, 24 hours a day, 365 days a year
• +2 more outcomes

Named customers2 records

Segments1 record

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Two partnerships are on record, tiered core.

• Stadtwerke DreieichcoreStrategic or Co-development Partner · 1 January 2024Stadtwerke Dreieich is one of two 100% parent companies of SDNI. SDNI was established as a joint subsidiary to operate the energy, water, and heating supply networks as well as metering operations for Stadtwerke Dreieich's service territory. SDNI provides bundled network services, technical expertise, and investment capacity for the energy system transformation in Dreieich.
• Stadtwerke Neu-IsenburgcoreStrategic or Co-development Partner · 1 January 2024Stadtwerke Neu-Isenburg is one of two 100% parent companies of SDNI. SDNI was established as a joint subsidiary to operate the energy, water, and heating supply networks as well as metering operations for Stadtwerke Neu-Isenburg's service territory. SDNI provides bundled network services, technical expertise, and investment capacity for the energy system transformation in Neu-Isenburg.

Scale indicators4 records

Recent moves7 records

Expansion highlights4 records

Broad incumbents

• Westnetz GmbH: One of Germany's largest distribution network operators (Westenergie/E.ON group), serving electricity and gas networks in North Rhine-Westphalia and beyond. Broad-incumbent comparator for multi-utility DSO operations.
• EWE NETZ GmbH: Distribution system operator for electricity, gas, water and heat within the EWE group across northern Germany. Broad-incumbent comparator for SDNI's regulated multi-utility grid operation and metering business.
• Netze BW GmbH: Largest German DSO subsidiary of EnBW, operating electricity, gas and water networks across Baden-Württemberg. Broad incumbent comparator for SDNI's regulated distribution business model at scale.
• Avacon AG: Large E.ON-affiliated DSO operating electricity, gas and heat networks across northern and central Germany. Broad-incumbent comparator covering the same regulated multi-utility distribution activity as SDNI.

Direct peers

• NRM Netzdienste Rhein-Main GmbH: Specialized network services GmbH operating electricity, gas and water grids for municipal utilities in the Rhine-Main/Hesse region. Closest comparable to SDNI in scope (multi-utility distribution), geography (Hesse) and JV/spin-out origin from municipal utilities.
• Mainzer Netze GmbH: Dedicated grid-operations subsidiary of Stadtwerke Mainz, running electricity, gas, water and heating networks. Directly comparable as another municipal-utility network services GmbH with similar service portfolio to SDNI.
• Leipziger Stadtwerke Netz GmbH: Dedicated network-services subsidiary of Leipziger Stadtwerke managing electricity, gas, water and heating networks in Leipzig. Direct structural peer to SDNI as a municipal-utility-owned multi-utility DSO GmbH.
• e-netz Südhessen GmbH: Electricity and gas distribution system operator in southern Hesse (including the Darmstadt/Dieburg area). Closely comparable DSO operating regulated distribution infrastructure adjacent to SDNI's footprint.
• Syna GmbH: Electric and gas distribution network operator across southern Hesse and surrounding regions; comparable multi-utility DSO in the same regional geography as SDNI, with overlapping customer base in the Rhine-Main area.

Regional players

• Energieversorgung Offenbach AG (EVO): Vertically integrated municipal energy utility headquartered in the same Offenbach district as SDNI's parent municipalities. Highly relevant regional peer given shared Hesse/Offenbach geography and overlapping electricity, gas and water services.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/stadtwerke-netzdienste-dreieich-und-neu-isenburg-gmbh

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about STADTWERKE-NETZDIENSTE Dreieich und Neu-Isenburg GmbH