Stadtwerke Marburg

What Stadtwerke Marburg does

Stadtwerke Marburg GmbH is a vertically integrated municipal utility (Stadtwerke) headquartered in Marburg, Germany, wholly owned by the city of Marburg (Stadt Marburg) and founded around 2001. The company delivers a comprehensive portfolio of essential public infrastructure services — electricity, natural gas, district heating, drinking water, wastewater management, FTTH fiber internet, public EV charging, city bus transport, parking, and waste disposal — to residential, commercial, industrial, and municipal customers in Marburg and the surrounding Landkreis Marburg-Biedenkopf. The company operates regulated distribution networks under municipal concessions, supplies over 30,000 households with 100% renewable electricity (since 2009), and runs more than 46 photovoltaic systems jointly with housing provider gewobau.

The underlying technology stack combines physical network infrastructure (a ~410 km sewer network conveying ~20 million liters of wastewater daily, a district heating network delivering over 72,600 MWh per year from CHP, biomass, and heat pump sources, an FTTH fiber network with guaranteed symmetric speeds up to 1,000 Mbit/s, and EV charging stations) with tariff-engineering capabilities such as a dynamic hourly electricity tariff linked directly to EPEX SPOT SE exchange prices and multi-component heat pricing formulas tied to fuel, investment, and wage indices. The company sells through three primary channels: a physical Kundenzentrum customer center, an online Bestellportal/Kundenportal, and telephone-based inside sales, complemented by a customer referral program.

Revenue is generated through regulated subscription tariffs across all utility verticals, with consumption-based and base-price components for electricity, gas, heat, and water; usage-based charges for wastewater (per cubic meter and per square meter of impervious surface) and EV charging; flat-rate subscription fees for fiber internet; and concession-based network access fees. The operating model blends regulated infrastructure returns with retail margin on energy supply, fiber ISP revenue, and ancillary municipal services (bus, parking, waste). The company is structured as a private limited company (GmbH) with one disclosed wholly owned subsidiary, Marburger Entsorgungs-GmbH (MEG), handling waste disposal.

Name

Stadtwerke Marburg

Legal name

Stadtwerke Marburg GmbH

Website

https://stadtwerke-marburg.de

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

11–50 employees

Short description

Stadtwerke Marburg is a municipally owned, vertically integrated utility serving Marburg and Landkreis Marburg-Biedenkopf in Hesse, Germany, providing electricity, gas, district heating, water, wastewater, FTTH fiber internet, EV charging, public transport, and waste disposal to over 30,000 households plus commercial and public-sector customers.

Ownership category

akta.pro rank

Product category

Multi-utility municipal services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Steam and Air-Conditioning Supply (221330), Electric Power Generation (22111), Solar Electric Power Generation (221114)

SIC

Electric, Gas & Sanitary Services (4900), Electric Services (4911), Cogeneration Services & Small Power Producers (4991), Water Supply (4941)

akta.pro primary industry

DER Aggregation & Virtual Power Plants (VPPs) (EUAMAJAC)

akta.pro secondary industries

Residential DER Aggregation & VPPs (Solar+Storage, Smart Home, Community) (EUAFAHAA), Resilience & Backup Power Solutions (Critical Facilities, Islanding) (EUAMAJAK), Retail Supply + DER/Virtual Power Plant Bundles (Solar, Storage, DR) (EUAGABAI), Distributed Storage (Behind-the-Meter Batteries) (EUAMAJAE)

Keywords

• Municipal utility services
• Electricity and gas supply
• District heating services
• Fiber optic internet
• Water and wastewater

Headquarters

HQ city

Marburg

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity supply (Strom): Supply of 100% renewable electricity to residential and commercial customers via regulated tariff structures. Revenue from base price (Grundpreis) and consumption-based energy price (Arbeitspreis). Includes standard tariffs, dynamic/hourly tariffs, heat pump tariffs, and EV charging tariffs. Services ~30,000+ households.
2. Natural gas supply (Erdgas): Supply of natural gas to residential and commercial customers. Revenue from base price and consumption-based energy price. Includes standard tariffs and a 26% price reduction implemented in November 2023.
3. District heating (Wärme): Supply of heating energy via district heating networks (Fernwärme and Nahwärme). Revenue from capacity price (Leistungspreis), consumption price (Arbeitspreis), and measurement price (Messpreis). Annual supply exceeds 72,600 MWh. Also generates hot water revenue.
4. Water supply (Wasser): Drinking water supply to Marburg residents. Revenue from consumption-based water price and monthly meter base price. A new waterworks was built for approximately 11.5 million euros. Subject to reduced 7% VAT rate.
5. Sewage/wastewater management (Abwasser): Operation of the ~410 km public sewer network transporting ~20 million liters of wastewater daily. Revenue from Schmutzwassergebühr (pollution charge) and Niederschlagswassergebühr (rainwater charge) collected on behalf of the city.
6. Fiber optic internet and telecommunications (Kommunikation/Glasfaser): FTTH internet services at 100/300/600/1000 Mbit/s with flat-rate pricing and optional phone service. One-time connection fee (69 euros) plus monthly subscription. Also includes CityWIFI free hotspot service and B2B enterprise connectivity.
7. EV charging infrastructure (Elektromobilität): Public EV charging stations operated since 2011 using 100% green electricity. 30 new stations built in 2024 with 13 more planned for 2025. THG quota (greenhouse gas quota) trading offered to EV owners as an additional revenue stream.
8. Public transport services (Verkehr): City bus operations via www.stadtbus-marburg.de, bike sharing (nextbike), parking management (Parken), and natural gas/EV refueling stations.
9. Waste disposal (Entsorgung): Household and commercial waste disposal through subsidiary Marburger Entsorgungs-GmbH (MEG) and Dienstleistungsbetrieb der Stadt Marburg (DBM). Revenue from waste collection fees.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels7 records

Core offering

Stadtwerke Marburg GmbH is a vertically integrated municipal utility providing electricity, natural gas, district heating, drinking water, wastewater management, fiber-optic internet, EV charging, public transport, parking, and waste disposal to households, commercial customers, and the public sector in Marburg and the surrounding district of Marburg-Biedenkopf. It owns and operates the local distribution networks under regulated concessions and sells energy, water, telecommunications and mobility services through its own customer center, online portals, and field sales teams. All electricity supplied is 100% renewable (96% Norway hydro, 4% Germany), and the FTTH fiber network delivers guaranteed symmetric speeds up to 1,000 Mbit/s.

Product overview

Stadtwerke Marburg is a municipal utility offering a comprehensive portfolio of energy and infrastructure services. The core offering includes electricity products (SWMRStrom, SWMRsmart dynamic tariff, SWMRLuna time-variable tariff, SWMRWärmestrom for heat pumps/EVs, SWMRMobil, SWMRWärmeKlimaMobil), natural gas products (SWMRGas, ErdgasPlus), district heating (PremiumWärme, SWMRWärme), water supply, wastewater management, and waste disposal. Communication services include fiber internet (SWMR Glasfaser-Internet for residential and business), transparent Ethernet connections, CityWIFI public hotspots, and carrier products. Mobility services encompass public EV charging stations (operating since 2011 with green electricity), CNG refueling (since 2004), local public transport, and parking facilities. The portfolio operates through dedicated customer portals for energy ordering and management, supporting both residential and commercial customers in Marburg and the district.

Differentiator

Problem solved

Functional benefit

Brands

• SWMRStrom: Electricity tariff product for household and commercial customers with 100% renewable energy
• SWMRsmart
• SWMRLuna
• SWMRWärmestrom
• SWMRMobil
• SWMR WärmeKlimaMobil
• SWMRGas
• PremiumWärme
• SWMRWärme
• StromPlus
• ErdgasPlus
• SWMR Glasfaser-Internet
• CityWIFI

Products and services

• Electricity Supply (Strom) Sale of 100% renewable electricity to residential and commercial customers in the Marburg network area under multiple tariff structures (basic, optional, time-of-use, dynamic hourly, heat pump, and EV charging tariffs). Service covers more than 30,000 households.
• Natural Gas Supply (Erdgas)

Quantifiable outcome

• Over 30,000 households supplied with green electricity from newly approved wind energy areas
• +4 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Two partnerships are on record, tiered core and minor.

• Gemeinde LahntalcoreStrategic or Co-development Partner · 6 November 2023Gemeinde Lahntal awarded the concession for continued operation of the natural gas distribution network to Stadtwerke Marburg in November 2023, continuing a successful partnership. This grants Stadtwerke Marburg the right to operate the gas network in the municipality.
• Kreishandwerkerschaft MarburgminorGTM or Marketing PartnerStadtwerke Marburg and the local crafts association (Kreishandwerkerschaft) signed a cooperation agreement in June 2018 offering discounted energy rates for members of the association, providing a referral and joint marketing channel.

Scale indicators8 records

Recent moves9 records

Expansion highlights6 records

Emerging players

• Lichtblick SE: Hamburg-based green electricity supplier and residential VPP operator aggregating household flexibility assets. Comparable to Stadtwerke Marburg's dynamic SWMRsmart and §14a VPP-style offerings.
• Sonnen GmbH: Residential battery storage and virtual power plant operator (now owned by Shell). Comparable on the residential DER aggregation and VPP angle relevant to Stadtwerke Marburg's §14a controllable-device tariff.
• Next Kraftwerke GmbH: Cologne-based virtual power plant operator aggregating distributed energy resources for grid services and power marketing. Comparable on the VPP/DER aggregation and grid-services revenue angle.

Direct peers

• Stadtwerke Gießen: Municipal utility serving Gießen and surrounding area in Hesse with electricity, gas, water, heat, fiber and mobility services. Closest comparable by size, scope and Hessian regional footprint to Stadtwerke Marburg.
• OVAG (Oberhessische Versorgungsbetriebe AG): Regional multi-utility headquartered in Friedberg, Hesse, supplying electricity, gas, water and heat across Oberhessen. Comparable regional scope and concession-based multi-utility model.
• EAM GmbH (Energie aus der Mitte): Municipal utility network operator owned by ~130 Hessian municipalities, providing grid services, energy supply and digital metering across central and northern Hesse. Directly comparable network-operator profile.

Broad incumbents

• Mainova AG: Larger Frankfurt-based municipal multi-utility providing electricity, gas, heat, water and fiber services across the Rhine-Main region. Broader incumbent with overlapping but larger-scale offerings than Stadtwerke Marburg.
• E.ON SE: Largest German investor-owned utility with distribution networks, retail supply and customer solutions across Germany. Operates network and retail businesses that overlap Stadtwerke functions at much greater scale.
• Stadtwerke Frankfurt am Main: Frankfurt's municipal utility offering electricity, gas, heat, water, mobility and digital services at a larger scale. Relevant broad incumbent benchmark for Hesse municipal utilities.
• EnBW Energie Baden-Württemberg AG: Major integrated German regional utility with generation, distribution, EV charging and energy services portfolios. Comparable on energy supply, charging and grid-flexibility product categories.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/stadtwerke_marburg
• LinkedInlinkedin.com/company/stadtwerke-marburg-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries1 record

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 Marburg