Municipal Utilities Radolfzell

What Municipal Utilities Radolfzell does

Stadtwerke Radolfzell GmbH is a municipal multi-utility (Stadtwerk) owned by the City of Radolfzell am Bodensee in Baden-Württemberg, Germany, serving approximately 32,000 residents across seven districts (Kernstadt, Böhringen, Güttingen, Liggeringen, Markelfingen, Möggingen, Stahringen). The company holds the Grundversorger designation for the 01.01.2025–31.12.2027 period and operates as the regulated network operator for electricity, gas, water, and district heating under EnWG, NAV, NDAV, AVBWasserV, and AVB FernwärmeV. Its service portfolio spans electricity and natural gas supply, potable water supply, district heating (Nahwärme), broadband internet and telephony, public city bus transport (Stadtbus), electromobility (wallboxes and the SEEFAHRER e-carsharing sub-brand), as well as home energy solutions (photovoltaics, battery storage, balcony power plants, heat pumps, and a Home Energy Management System) marketed through the Energieshop e-commerce platform.

The company's underlying technology centers on owned distribution networks supplemented by digital service layers. Notable proprietary infrastructure includes a wastewater heat recovery system (Abwasserwärmerückgewinnungssystem) feeding into a large heat pump at the Kläranlage as part of the Wärme am Klärwerk district heating project, an Abwasserwärmerückgewinnungssystem at the Kläranlage and renewable district heating networks in Schafweide (since 2001/2022), Liggeringen (since 2019, solar thermal), and Möggingen (since 2011, bioenergy village using biogas and wood chips). Digital platforms include a multi-factor-authenticated online customer portal (Kundenportal), GIS-based network planning (Planauskunft), smart metering infrastructure (digitale Messtechnik) compliant with §14a EnWG, the Hausanschlussportal for new construction connections, the Installateurportal for licensed installers, and an Eturnity-powered solar calculator. Operations are governed by Managing Director Tobias Hagenmeyer and Supervisory Board Chairman Simon Gröger, with leadership and customer service now consolidated at the relocated headquarters on Herrenlandstraße 29, Radolfzell.

The business model relies primarily on recurring subscription revenue from regulated utility supply (standing charges plus consumption-based energy, heat, and water rates) and regulated network charges (Netzentgelte). Adjacent revenue streams include hardware sales (PV systems, balcony power plants, wallboxes, heat pumps) via the Energieshop, installation and project management fees for energy solutions, transaction fees from the Stadtbus, and licensing income from leasing commercial premises. Distribution is omnichannel: digital self-service via portal and shop, phone service, the physical Kundencenter, dedicated field sales for complex energy and district-heating projects, and an installer partner network. Recent certification momentum — including TÜV NORD certified Ökostrom for nationwide supply from 2026, Klimainvest Ökostrom RE seal, Great Place to Work certification (March 2026 – March 2027), Top 7 Lokalversorger 2026, and essentiq Service Quality 2025 — underpins brand trust and customer retention within the franchise area.

Name

Municipal Utilities Radolfzell

Legal name

Stadtwerke Radolfzell GmbH

Website

https://stadtwerke-radolfzell.de

Company type

Private

Operating status

Operating

Headcount range

51–100 employees

Short description

Stadtwerke Radolfzell GmbH is a municipally-owned multi-utility serving approximately 32,000 residents of Radolfzell am Bodensee, Germany, providing electricity, gas, water, district heating, broadband internet, public bus transit, and electromobility services through owned distribution networks and digital self-service channels.

Ownership category

akta.pro rank

Product category

Municipal Multi-Utility Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Steam and Air-Conditioning Supply (221330), Natural Gas Distribution (22121)

SIC

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

akta.pro primary industry

Interconnection, Permitting & Grid Services for DERs (EUAMAJAH)

akta.pro secondary industries

Protection, Metering & Grid Compliance Systems (Relays, Revenue Metering, PQ) (EUAEADAE), Grid Interconnection, Power Quality & Electrical Infrastructure Service (Transformers, Switchgear) (TLAKAMAM)

Keywords

• Municipal multi-utility services
• Electricity and gas supply
• District heating networks
• Drinking water supply
• Fiber optic broadband

Headquarters

HQ city

Radolfzell

HQ country

Germany

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Supply (Strom): Sale of electricity to residential and business customers in Radolfzell. As the default supplier (Grundversorger) for the 01.01.2025–31.12.2027 period, the company supplies most household customers. Revenue is generated through standing charges (Grundpreis) and consumption-based energy prices (Arbeitspreis). Regional eco-electricity (RE) certified by TÜV NORD is offered as a premium green product.
2. Natural Gas Supply (Erdgas): Sale of natural gas to residential and business customers. Includes network access (Netzzugang) for third-party suppliers. Revenue from standing charges and consumption-based pricing. Company acts as Wiederverkäufer (reseller) of natural gas.
3. District Heating (Wärme/Nahwärme): Supply of renewable heat through district heating networks in Schafweide, Liggeringen, Möggingen, and new areas (Radolfzell Mitte, Konstanzer Straße, Mettnau I via wastewater heat). Revenue from annual base price (Jahresgrundpreis) and thermal energy price (Wärmearbeitspreis). Wärmepumpe (heat pump) sales for individual buildings also generate revenue.
4. Water Supply (Trinkwasserversorgung): Potable water supply to all households and businesses in Radolfzell. Revenue from standing and consumption charges.
5. Internet and Telecommunications (Breitband/Internet): Broadband internet and telephony services via fiber optic (Glasfaser) and high-speed DSL. The company is a Wiederverkäufer (reseller) of telecommunications services. Revenue from subscription-based internet packages with guaranteed bandwidths.
6. Public Transport (Stadtbus): Operation of the Radolfzell city bus system. Revenue from ticket sales and public transport subsidies.
7. Electromobility (E-Mobilität): Sale and installation of wallboxes for residential and commercial properties. E-carsharing service 'SEEFAHRER'. Revenue from product sales, installation services, and carsharing usage fees.
8. Energy Solutions (Photovoltaik, Wärmepumpen, Balkonkraftwerke): Consulting, sale, and installation of photovoltaic systems, battery storage, heat pumps, and balcony power plants through the Energieshop (energieshop-radolfzell.de). Revenue from product sales and installation/project management fees.
9. Grid Operation (Netzbetrieb): Operation of electricity, gas, water, and heat distribution networks. Revenue from regulated network charges (Netzentgelte) set according to regulatory frameworks (EnWG, NAV, NDAV, AVBWasserV, AVB FernwärmeV).
10. Property Leasing (Gewerberäume): Leasing of commercial premises owned by the company.

Pricing tiers

Go-to-market motion2 records

Distribution channels9 records

Marketing channels11 records

Core offering

Stadtwerke Radolfzell GmbH is the municipal multi-utility provider for Radolfzell am Bodensee and surrounding districts, supplying electricity, natural gas, drinking water, renewable district heating, fiber-optic broadband internet, telephone and TV, and operating the Stadtbus public transit system. The company also sells and installs home energy solutions (photovoltaic systems, balcony power plants, heat pumps, wallboxes) and operates the SEEFAHRER e-carsharing service, while running the regulated electricity, gas, water, and heat distribution networks as the local default supplier (Grundversorger) for the 2025-2027 period.

Product overview

Stadtwerke Radolfzell (Municipal Utilities Radolfzell) operates as a multi-utility provider offering an integrated portfolio of energy and infrastructure services. The core products include electricity, natural gas, water supply, and district heating (Wärme), complemented by telecommunications services (internet, telephone, television) and urban mobility (city bus, e-carsharing). The company provides home energy solutions including photovoltaic systems, balcony power stations, heat pumps, and wallboxes for electromobility. Digital services include a customer portal for contract management, an energy shop for purchasing home energy products, a house connection portal, and an installer portal for contractors. District heating networks serve specific neighborhoods through sustainable sources including biogas, solar thermal, and wastewater heat recovery. The company positions itself as a regional energy partner transitioning toward nationwide green electricity supply.

Differentiator

Problem solved

Functional benefit

Brands

• SEEFAHRER e-carsharing: Electric car sharing service operated by Stadtwerke Radolfzell.
• Energieshop

Products and services

• Electricity Supply (Strom)
• Natural Gas Supply (Erdgas)
• Drinking Water Supply (Wasser)
• District Heating (Wärme/Nahwärme)
• Heat Pump (Wärmepumpe)
• Internet & Telephony (Breitband/Internet)
• Fiber-Optic Connection (Glasfaseranschluss)
• Television (Fernsehen)
• Stadtbus Radolfzell (City Bus)
• SEEFAHRER E-Carsharing
• Wallbox (EV Home Charger)
• Photovoltaic Systems (Photovoltaikanlagen)
• Balkonkraftwerk (Balcony Power Plant)
• Home Energy Management System (Energiemanagement / HEMS)
• Construction & Renovation Consulting (Bauen, Sanieren, Energiesparen)
• Customer Portal (Kundenportal)
• Energy Shop (Energieshop)
• House Connection Portal (Hausanschlussportal)
• Installer Portal (Installateurportal)
• Infrastructure Map Information (Planauskunft)
• Commercial Property Leasing (Gewerberäume)

Quantifiable outcome

• Wastewater heat recovery project (Wärme am Klärwerk) achieves CO₂ savings of up to 2,800 tonnes per year
• +3 more outcomes

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

AI capability2 records

Feature9 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Thüga SmartService GmbHcoreTechnology or IntegrationThüga SmartService GmbH (Zum Kugertelfang 2, 95119 Naila) provides the SmartService platform used by Stadtwerke Radolfzell for customer service management and process optimization. Thüga is also the parent group (Thüga Group) that monitors municipal utility performance through the 'Frühwarnsystem' (early warning system) in which Stadtwerke Radolfzell participates. The partnership reflects a strategic relationship within the German municipal utility ecosystem.
• Schiertz & Lämmer GbRminorImplementation/ SI/ Consulting PartnerSchiertz & Lämmer GbR (Lehrenweg 19, 88709 Meersburg) provides web development and technical maintenance services for the Stadtwerke Radolfzell website. They support site design, functionality, and programming tasks.
• Deutsche Datenschutzkanzlei (DDSK) GmbHminorImplementation/ SI/ Consulting PartnerDDSK GmbH (Dr.-Klein-Str. 29, 88069 Tettnang) serves as the external Data Protection Officer (Datenschutzbeauftragter) for Stadtwerke Radolfzell, providing GDPR compliance advisory services. They also drafted the company's privacy policy and related documents.
• Creditreform Konstanz Müller & Schott GmbH & Co. KGminorOthersCreditreform (Mainaustr. 48, 8464 Konstanz) provides creditworthiness/bonity checks for Stadtwerke Radolfzell when customers are served in advance (Vorleistung). Used as part of the SmartService credit assessment process.
• Adobe StockminorOthersAdobe Stock provides licensed stock photography used on the Stadtwerke Radolfzell website and marketing materials.
• istock (Getty Images)minorOthersistock (by Getty Images) provides licensed stock photography used on the Stadtwerke Radolfzell website.

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Stadtwerke Singen: Nearby municipal utility with comparable service portfolio serving a similar-sized town in the Hegau region of Baden-Württemberg. Closely matched on regulatory environment (same state law) and multi-utility structure.
• Stadtwerke Konstanz: Direct municipal multi-utility peer operating in neighboring Konstanz on Lake Constance, with a closely comparable portfolio (electricity, gas, water, heat, internet, public transit) and similar mid-sized town customer demographics. The most directly comparable Stadtwerke by geography, scale, and product mix.
• badenova AG & Co. KG: Regional energy and water utility serving Freiburg and surrounding region with similar multi-utility structure (electricity, gas, water, heat, broadband) and renewable heating networks. Comparable customer profile and renewable transition strategy.
• Stadtwerke Friedrichshafen: Lake Constance region multi-utility peer with overlapping renewable heating, electricity, gas, water, and broadband operations in a comparable mid-sized German town. Operates similar SEEFAHRER-style e-mobility and energy solutions programs.
• Naturenergie Holding GmbH: Regional renewable energy utility operating in southern Baden-Württemberg with focus on hydro, wind, and PV. Comparable community-renewable and district-heating operations, plus green electricity offerings relevant to the nationwide Ökostrom expansion.

Broad incumbents

• Stadtwerke München: Much larger German municipal multi-utility benchmark; comparable in service breadth (electricity, gas, water, heat, transit, fiber) but operates at urban scale. Useful as a strategic and operational benchmark rather than a direct competitor.
• E.ON SE: National incumbent utility with significant network operator footprint in Germany; competes in customer supply and grid services across the company's territory. Broad incumbent setting the competitive context for supply-side pressure and VPP/DER markets.
• Mainova AG: Large Frankfurt-based municipal multi-utility benchmark with similar portfolio structure (electricity, gas, water, heat, broadband) and regulated grid operations. Comparable at the portfolio model level though operating in a different region.
• Thüga AG: Parent-affiliated network of municipal utilities providing shared services platform to ~100 Stadtwerke including Stadtwerke Radolfzell. Comparable in business model at the portfolio level, and directly relevant given the Thüga SmartService and Frühwarnsystem partnerships.
• EnBW Energie Baden-Württemberg AG: Largest regional energy supplier in Baden-Württemberg; operates electricity generation, distribution, and EV charging across the same regulatory and geographic region. A broader incumbent competing in supply, distribution, and new mobility segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UC10rY7NzKq_0nE4X1-KaF0g
• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/stadtwerke-radolfzell-gmbh
• Instagraminstagram.com/stadtwerke.radolfzell
• TikToktiktok.com/@stadtwerke.radolfzell

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 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 Municipal Utilities Radolfzell