Stadtwerke Rostock

What Stadtwerke Rostock does

Stadtwerke Rostock Aktiengesellschaft is a municipally-owned multi-utility (Stadtwerke) headquartered in Rostock, Germany, organized as a German public limited company (Aktiengesellschaft) under the ownership of the Hanseatic city of Rostock. Founded in 1990 and employing approximately 600 people, it serves roughly 124,000 electricity customers, 45,000 natural gas customers, and supplies the majority of Rostock households with district heating, with district heating networks also extending to Bad Doberan, Kühlungsborn, and Graal-Müritz.

The company's core operations span energy generation, distribution, and retail supply. Generation assets include a modernized gas-and-steam power plant (GuD-Anlage, modernized 2017), combined heat and power plants, large-scale photovoltaic installations, and heat storage facilities commissioned in 2020. Distribution is operated through wholly-owned subsidiary Stadtwerke Rostock Netzgesellschaft mbH (founded 2006), which runs the electricity, gas, and heat networks. Retail products are sold under the OSTSEE-STROM (electricity), KÜSTEN-GAS (gas), Fernwärme (district heating), MEDIA (broadband internet up to 1 Gbps residential / 10 Gbps business), and e-mobility brands, including Bio-CNG biomethane fueling launched in May 2024 and EV charging infrastructure under the OSTSEE-STROM MOBIL brand.

Revenue is generated primarily through monthly subscription tariffs for residential (Privatkunden) and business (Geschäftskunden) customers, supplemented by regulated network fees via the subsidiary, e-mobility and Bio-CNG fuel sales, broadband and IPTV subscriptions, and service offerings such as energy consulting, energy performance certificates (Energieausweis), and meter rental. Distribution is hybrid: a city-center customer center at Kröpeliner Straße 32, a 24/7 online self-service portal (Mein Portal), phone support, and a regional partner / loyalty network (Meerwerte / Ostsee-Bonus). Certifications include TÜV and KlimaInvest certifications for OSTSEE-STROM, TÜV certification for ERDGAS, TÜV certification for Fernwärme CO2 footprint, AGFW TSM certification for district heating, and GDPR/DSGVO data protection compliance.

Name

Stadtwerke Rostock

Legal name

Stadtwerke Rostock Aktiengesellschaft

Website

https://swrag.de

Company type

Public

Founded year

1990

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Stadtwerke Rostock is a municipally-owned multi-utility in Rostock, Germany, supplying ~124,000 electricity customers, 45,000 gas customers, and the majority of Rostock households with district heating, plus broadband and e-mobility services, through owned generation assets and a regulated grid subsidiary.

Ownership category

akta.pro rank

Product category

Municipal Energy Utility

NAICS

Steam and Air-Conditioning Supply (221330), Natural Gas Distribution (22121)

SIC

Cogeneration Services & Small Power Producers (4991), Natural Gas Distribution (4924), Steam & Air-Conditioning Supply (4961)

akta.pro primary industry

Captive & Embedded Gas-Fired Power Generation (Industrial/Commercial CHP) (EUALALAB)

akta.pro secondary industry

Geothermal Direct Use Heat Projects (District Heating, Greenhouses, Aquaculture, Industrial Heat) (EUAMAEAG)

Keywords

• Municipal utility services
• Electricity distribution
• District heating supply
• Natural gas supply
• Telecommunications services

Headquarters

HQ city

Rostock

HQ country

Germany

HQ region

Europe

Offices2 records

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): Residential and business electricity supply including base tariffs, eco-power products (OSTSEE-STROM), and specialized offerings for heat pumps and night storage heaters
2. Natural Gas Supply (Erdgas): Gas supply for households and commercial customers, including specialized tariffs for heat pumps
3. District Heating (Fernwärme): Central heating supply to majority of Rostock households plus Bad Doberan, Kühlungsborn and Graal Müritz
4. Broadband Internet & TV (MEDIA): High-speed internet, telephony and IPTV services for residential and business customers
5. E-Mobility & Bio-CNG: Public charging stations for electric vehicles and natural gas fueling stations including Bio-CNG (since May 2024)
6. Network Operations: Gas and electricity network operation through subsidiary Stadtwerke Rostock Netzgesellschaft mbH

Pricing tiers

Go-to-market motion2 records

Distribution channels6 records

Marketing channels8 records

Core offering

Stadtwerke Rostock is a municipal multi-utility provider supplying electricity, natural gas, and district heating to approximately 124,000 electricity customers and 45,000 gas customers across Rostock and surrounding municipalities. The company operates its own generation assets (modernized GuD gas-and-steam power plant, combined heat and power plants, large-scale PV installations, and heat storage facilities) and also offers broadband internet (MEDIA), e-mobility charging, Bio-CNG fueling, heat pump, and solar solutions for residential and business customers.

Product overview

Stadtwerke Rostock is a regional energy utility company serving the Baltic Sea coastal area with an integrated energy portfolio. The company operates as both energy supplier and grid operator, offering electricity products (Ostsee-Strom brand with variants including FLEX, FIX, SMART, CONTROL, PUR/PLUS/REGIO PLUS, and specialized tariffs for night storage heating and tenants), natural gas products (ERDGAS/Küsten-Gas with FLEX, FIX, and PROFI variants), district heating (Fernwärme) for Rostock and surrounding municipalities, heat pump solutions, and broadband internet services (MEDIA products from 25 Mbps to 10 Gbps with optional phone and TV). The portfolio includes eco-mobility offerings such as EV charging infrastructure, Ostsee-Strom MOBIL, and Bio-CNG fueling. Digital services include Mein Portal customer self-service and Netzauskunft network information system. The company also operates district heating networks, natural gas networks, and maintains power grid infrastructure in partnership with subsidiary Stadtwerke Rostock Netzgesellschaft mbH.

Differentiator

Problem solved

Functional benefit

Brands

• OSTSEE-STROM: 100% green electricity product (40% combined heat and power, 60% renewable energies)
• KÜSTEN-GAS
• MEDIA
• OSTSEE-STROM MOBIL
• Grüne Wärme
• Meerwerte
• Mein Portal

Products and services

• OSTSEE-STROM (Green Electricity Tariffs) Green electricity product line for residential and commercial customers, available in fixed and flexible contract variants (FLEX, FIX, PUR/PLUS/REGIO PLUS, SMART, CONTROL, NACHTSPEICHERHEIZUNG), based on 40% combined heat and power and 60% renewable energy sources.
• STROM BASIS (Basic Supply) Default electricity supply tariff for customers in the Rostock network area without a contracted special tariff, available with no minimum contract term.
• KÜSTEN-GAS (Natural Gas Tariffs) Natural gas tariff family for residential and business customers with variants including flexible (FLEX), fixed (FIX), basic supply (BASIS), regional sourcing options (PUR/PLUS/REGIO-PLUS), and professional/enterprise-grade (PROFI) options.
• Fernwärme (District Heating) District heating supply service providing centrally generated heat to residential and commercial properties in Rostock, Bad Doberan, Kühlungsborn, and Graal-Müritz, powered by combined heat and power (CHP) and heat storage facilities.
• Wärmepumpe (Heat Pump Solutions) Specialized electricity tariff and consulting services for residential and business customers with heat pump systems, including subsidies and regulatory compliance support.
• MEDIA Broadband Internet High-speed broadband internet, telephony and IPTV services for residential customers (MEDIA 25/50/100/250/500/1000) and business customers (MEDIA G50/G100/G200/G500/G1000), including symmetric fiber options and bundle configurations with phone and TV.
• E-Mobility (EV Charging) Electric vehicle charging services including public charging stations, home charging solutions, and business charging infrastructure (Business-Ladestation) for residential and commercial customers across the city area.
• Bio-CNG (Biomethane Fueling) Biomethane (Bio-CNG) fuel available at public natural gas fueling stations since May 2024, offering an eco-friendly alternative fuel for natural gas vehicle owners.
• Solar Energy Solutions Solar energy products and services for residential and commercial customers, including PV system offerings and solar power procurement options.
• Business-Grade Internet (MEDIA G-Series) Business-grade broadband internet products (MEDIA G50/G100/G200/G500/G1000/G5000/G10000) with symmetric options, dedicated connectivity for schools, and optional phone and TV services for business customers.

Quantifiable outcome

• Supplies majority of Rostock households with district heating
• +2 more outcomes

Named customers3 records

Segments2 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eight partnerships are on record, tiered core and minor.

• Stadtwerke Rostock Netzgesellschaft mbHcoreStrategic or Co-development Partner · 1 January 2006Subsidiary company founded in 2006 to operate electricity and gas distribution networks in Rostock and surrounding municipalities. Operates Strom-Netz, Erdgas-Netz, and Wärme-Netz infrastructure.
• E.DIS Netz GmbHminorChannel Partner/ Reseller/ DistributorThird-party network operator for Kritzmow area where Stadtwerke Rostock supplies electricity but does not operate the grid. Partnership for tariff offerings in E.DIS network area.
• WEMAGminorChannel Partner/ Reseller/ DistributorPartnership for OS CONTROL tariff products (steuerbare Verbrauchseinrichtungen) in WEMAG network area.
• Metering Service GmbH (MSG)minorImplementation/ SI/ Consulting PartnerService provider for meter operation (electricity, gas, heating), meter reading, data acquisition and transmission, and supply interruption/enabling services.
• GFKL PayProtect GmbH (Lowell-Group)minorImplementation/ SI/ Consulting PartnerDebt collection service provider handling outstanding payments and claims management.
• on-collect Solutions AGminorImplementation/ SI/ Consulting PartnerDebt collection company supporting open payment processing since April 2026.
• SCHUFA Holding AGminorOthersCredit reference agency for debt collection and claims management purposes.
• RVV-Gruppe (Rostocker Versorgungs- und Verkehrsholding)coreStrategic or Co-development PartnerParent municipal holding group; sister companies share career portal for job opportunities.

Scale indicators7 records

Recent moves7 records

Expansion highlights5 records

Emerging players

• Lichtblick SE: Hamburg-based green-electricity and decentralized energy specialist offering innovative green tariffs, virtual power plants, and e-mobility. Competes with Stadtwerke Rostock's OSTSEE-STROM eco-products in the green-energy segment.

Direct peers

• Stadtwerke München (SWM): One of Germany's largest municipal multi-utilities, providing electricity, gas, district heating, broadband, and e-mobility to Munich. Highly comparable structure (municipal AG), portfolio mix (CHP + district heating + broadband + e-mobility), and regulatory framework as a Stadtwerke.
• EWE AG: Regional energy utility headquartered in northern Germany (Lower Saxony), serving an area close to Rostock. Provides electricity, natural gas, district heating, and telecommunications — a directly analogous multi-utility offering in a comparable German municipal/regional context.
• WEMAG AG: Mecklenburg-based utility named as a Stadtwerke Rostock partner for control tariff products. Operates as a regional energy supplier and grid operator in the same geographic region with overlapping electricity/gas product lines.
• Stadtwerke Leipzig: Municipal multi-utility serving Leipzig with electricity, gas, district heating (one of Germany's largest Fernwärme networks), broadband, and e-mobility. Closely comparable portfolio structure and CHP-based district heating to Stadtwerke Rostock.
• Vattenfall Wärme Berlin GmbH: Operates Berlin's large CHP-based district heating network. Comparable to Stadtwerke Rostock in the district heating + power generation segment, though Berlin Vattenfall is part of a broader utility group.
• RheinEnergie AG: Cologne-area municipal utility providing electricity, gas, district heating, and broadband. Similar Stadtwerke structure and comparable multi-vertical product portfolio to Stadtwerke Rostock.
• MVV Energie AG: Mannheim-headquartered municipal energy utility with power generation, district heating, gas distribution, and increasingly e-mobility and broadband. One of the publicly listed German Stadtwerke and structurally analogous to Stadtwerke Rostock.
• Lechwerke AG: Bavarian municipal energy supplier (Augsburg area) within the E.ON group, providing electricity, gas, district heating, and e-mobility. Comparable regional utility with similar service breadth.

Broad incumbents

• E.ON Energie Deutschland: Germany's largest retail energy supplier with nationwide presence in electricity, gas, and increasingly heat pumps and distributed solar. Operates at a much larger scale and competes broadly with regional utilities like Stadtwerke Rostock across customer segments.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks8 records

Key highlights7 records

Customer concentration

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

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 Rostock