Energy producer in the
Canton of Aargau

144 companies in Energy producer based in the Canton of Aargau — name and year of registration from the commercial register.

Companies

50 of 144 companies

EW Oftringen AG Logo

EW Oftringen AG

Since 2008 · 21–50 empl.4.9(131)

EW Oftringen AG is a local electricity and telecommunications utility operating its own electricity distribution network. On behalf of the municipality of Oftringen, it manages the water supply and street lighting, and also offers Quickline internet, TV, landline and mobile services.

Energy producerElectricity supplyGreen electricityWater supply
ranQ Trust Score 4.5 out of 5.0, rated Excellent, Rank #1
Melintec AG Logo

Melintec AG

Since 2017 · 11–20 empl.5.0(29)

Melintec AG provides consulting, planning and installation of photovoltaic systems, energy storage and management systems, and charging solutions for electric vehicles. Its services also include electrical installations, lighting upgrades, maintenance and repair work.

Energy producerSolar and photovoltaics solutionsE-mobility charging solutionsLighting retrofits
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #2
Energie Freiamt AG Logo

Energie Freiamt AG

Since 1996 · 21–50 empl.4.3(39)

Energie Freiamt AG supplies households and businesses with electricity and heat and operates the associated distribution networks. Its services also include electrical installations, network services, and energy solutions for photovoltaics, electric mobility, and building automation.

Energy producerElectricity productsSolar systemsProduce electricity
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #3
IBW Energie AG Logo

IBW Energie AG

Since 2001 · 21–50 empl.4.6(10)

IBW Energie AG supplies customers with electricity, gas and water and provides related energy services. Its activities include energy consulting, heat contracting, electrical installations, photovoltaic systems, heating services and geoinformation.

Energy producerElectricity supplyGas supplyWater supply
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #4
StWZ Strom AG Logo

StWZ Strom AG

Since 2001 · 21–50 empl.4.2(31)

StWZ Strom AG supplies electricity and related energy services, including retail electricity products, feed-in remuneration for solar power and Smart Meter solutions. The company also provides online customer services (billing, meter readings, customer portal) and advisory services on self-consumption and photovoltaic systems.

Energy producerElectricity supplyElectricity productsElectricity generation and self-consumption
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #5
StWZ Erdgas und Fernwärme AG Logo

StWZ Erdgas und Fernwärme AG

Since 2001 · 21–50 empl.4.2(31)

StWZ Erdgas und Fernwärme AG offers natural gas products, biogas options and district heating along with related energy services. The company’s services also cover electricity, water and building-technology solutions, solar and storage systems, charging infrastructure and customer services such as an online portal and subsidy advice.

Energy producerNatural gasBiogasNatural gas/biogas mobility
ranQ Trust Score 4.4 out of 5.0, rated Very high, Rank #6
Verband Schweizerischer Elektrizitätsunternehmen (VSE) Logo

Verband Schweizerischer Elektrizitätsunternehmen (VSE)

Since 2003 · 21–50 empl.4.5(11)

Verband Schweizerischer Elektrizitätsunternehmen (VSE) is the umbrella association of Switzerland’s electricity sector. It coordinates and represents its members’ shared interests in dealings with policymakers, business and society, and provides services to the sector, including training and industry publications.

Energy producerRepresentation of the power industryMembershipVocational training
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #7
SWL Energie AG Logo

SWL Energie AG

Since 2002 · 51–100 empl.3.8(33)

SWL Energie AG supplies customers with electricity, gas, district heating and water, and operates a fibre-optic network. It also provides electrical installation services, smart energy products, and planning, construction and maintenance services for utility networks and facilities.

Energy producerElectricityGas energyDistrict heating
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #8
Regionalwerke AG Baden Logo

Regionalwerke AG Baden

Since 1999 · 101–500 empl.4.3(8)

Regionalwerke AG Baden supplies households, businesses and municipalities with electricity, water, gas, district heating and cooling. It also provides energy solutions and services including solar energy, heat pumps, e-mobility, energy consulting and equipment maintenance.

Energy producerElectricity supplyWater supplyDistrict heating and district cooling
ranQ Trust Score 4.3 out of 5.0, rated Very high, Rank #9
Swissgrid AG Logo

Swissgrid AG

Since 2005 · 101–500 empl.3.2(21)

Swissgrid AG operates Switzerland’s transmission grid and ensures the secure, stable transport of electricity. Its activities include grid control, maintaining and developing the grid infrastructure, and providing ancillary services to help maintain the balance of the electricity system.

Energy producerOperation of the Swiss Transmission GridGrid controlProcurement of system services
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #10
IBB Energie AG Logo

IBB Energie AG

Since 2013 · 101–500 empl.3.3(16)

IBB Energie AG supplies residential and business customers with electricity, gas and water, and operates a communications network. Its services also include district heating and cooling, energy advice, photovoltaic and storage solutions, and services related to electric mobility.

Energy producerElectricityGasGrids & supply
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #11
Elektrizitätsgenossenschaft Jonen Logo

Elektrizitätsgenossenschaft Jonen

Since 1911 · 11–20 empl.5.0(3)

Elektrizitätsgenossenschaft Jonen supplies residents of the municipality with electricity and provides the network infrastructure needed for this service. It offers electricity tariffs and Freiämter Naturstrom, and provides information for customers on photovoltaics and feeding solar power into the grid.

Energy producerElectricity supplyElectricity tariffs and billing informationFreiämter green electricity
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #12
IBB Strom AG Logo

IBB Strom AG

Since 2001 · 101–500 empl.3.3(16)

IBB Strom AG supplies electricity products and services for residential and commercial customers, including market-customer offerings as well as metering, network and supply-related services.

Energy producerElectricityElectricity products for private customersElectricity products for business customers
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #13
TBS Strom AG Logo

TBS Strom AG

Since 2011 · 1–10 empl.3.9(31)

TBS Strom AG supplies customers with electricity and operates the infrastructure required for its distribution. Its business areas also include water, heat and telecommunications services, as well as geographic information systems.

Energy producerElectricity SupplySmart Meter RolloutDistrict Heating Supply
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #14
Axpo Power AG Logo

Axpo Power AG

Since 1907 · 500+ empl.

Axpo Power AG is an energy company that produces, trades and supplies electricity and provides services across renewable energy, generation and distribution, and energy trading and sales.

Energy producerGeneration & DistributionEnergy SolutionsDigital Solutions
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #15
Elektrizitäts-Genossenschaft Boswil-Bünzen Logo

Elektrizitäts-Genossenschaft Boswil-Bünzen

Since 1909 · 1–10 empl.

Elektrizitäts-Genossenschaft Boswil-Bünzen supplies electricity to households and businesses and operates the distribution grid in its service area. It maintains the grid infrastructure and offers solutions for the shared self-consumption of solar power.

Energy producerElectricity supply and grid accessNaturstrom / energy mixSelf-consumption solutions (EVG/ ZEV/ vEVG/ vZEV/ LEG)
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #16
Elektra Genossenschaft Auw Logo

Elektra Genossenschaft Auw

Since 1909 · 1–10 empl.

Elektra Genossenschaft Auw supplies its customers with electricity. Its service area covers the residents of Auw and Rüstenschwil, and it also operates a public charging station.

Energy producerElectricity supplyFault servicePeriodic inspection
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #17
Elektrizitätsgenossenschaft Beinwil/Freiamt Logo

Elektrizitätsgenossenschaft Beinwil/Freiamt

Since 1909 · 1–10 empl.

Elektrizitätsgenossenschaft Beinwil/Freiamt supplies the public with electricity and operates the associated distribution network. It provides basic electricity supply and publishes tariffs and information on grid connections and electrical installations.

Energy producerElectricity supplyFault reportingAddress correction
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #18
Elektrizitätsgenossenschaft Mühlau Logo

Elektrizitätsgenossenschaft Mühlau

Since 1909 · 11–20 empl.

Elektrizitätsgenossenschaft Mühlau supplies the municipality of Mühlau with electricity. Its customer services cover electricity tariffs, consumption metering and billing, and it provides information about photovoltaic systems.

Energy producerElectricity supplyPhotovoltaicsConsumption and metering services
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #19
Elektrizitäts-Genossenschaft Merenschwand Logo

Elektrizitäts-Genossenschaft Merenschwand

Since 1909 · 1–10 empl.

Elektrizitäts-Genossenschaft Merenschwand supplies electricity to its customers and cooperative members and provides related services. It also offers renewable electricity from photovoltaic and hydropower sources.

Energy producerElectricity supplyNaturstromBilling and meter readings
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #20
Genossenschaft Elektra Ehrendingen Logo

Genossenschaft Elektra Ehrendingen

Since 1910 · 11–20 empl.

Genossenschaft Elektra Ehrendingen is a cooperative electricity supplier. It develops and maintains the electricity distribution network and supplies electrical energy to its service area.

Energy producerElectricity Supply and Grid OperationGreen Electricity ProductsFeed-in Tariff
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #21
Elektrizitäts-Genossenschaft Benzenschwil Logo

Elektrizitäts-Genossenschaft Benzenschwil

Since 1910 · 1–10 empl.

The core activity of Elektra Benzenschwil is the supply of electricity, particularly the distribution and sale of natural electricity, as well as the construction and operation of photovoltaic systems.

Energy producerElectricity supplyNaturstromPhotovoltaic systems
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #22
Genossenschaft ELEKTRA Fislisbach Logo

Genossenschaft ELEKTRA Fislisbach

Since 1911 · 1–10 empl.

Genossenschaft ELEKTRA Fislisbach procures and supplies electricity and operates the electricity distribution network. It also builds and maintains a fibre-optic network, oversees electrical installations and provides energy-related consultancy.

Energy producerElectricity SupplyNetwork Connection and Installation ApprovalGrid Operation and Maintenance
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #23
Elektra Rudolfstetten-Friedlisberg AG Logo

Elektra Rudolfstetten-Friedlisberg AG

Since 1911 · 1–10 empl.

The core activity of Elektra Rudolfstetten-Friedlisberg AG is the provision of electricity and cable network services, including the maintenance and control of existing installations, as well as the management of electricity tariffs and prices for private and business customers.

Energy producerElectricity supplyCable networkReal estate
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #24
Elektra-Genossenschaft Künten Logo

Elektra-Genossenschaft Künten

Since 1911 · 1–10 empl.

Elektra-Genossenschaft Künten supplies electricity to energy consumers in its service area. It provides information on electricity tariffs, grid connections and billing, and offers services for administering the local self-consumption of solar power.

Energy producerElectricity supplyElectricity billing and invoicingElectrical inspections
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #25
Elektra Genossenschaft Arni-Islisberg Logo

Elektra Genossenschaft Arni-Islisberg

Since 1911 · 1–10 empl.

Elektra Genossenschaft Arni-Islisberg procures and distributes electricity and operates the infrastructure required for its supply. It provides electricity to the municipalities of Arni and Islisberg.

Energy producerElectricity products for households and businessGrid access and energy supplyInspection of electrical installations
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #26
ELEKTRA Genossenschaft Abtwil Logo

ELEKTRA Genossenschaft Abtwil

Since 1912 · 1–10 empl.

ELEKTRA Genossenschaft Abtwil supplies electricity to the area defined in its electricity supply agreement with AEW. It operates a distribution network and provides information on photovoltaic power feed-in and connections for electric vehicle charging stations.

Energy producerElectricity supplyPhotovoltaicsE-mobility
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #27
Elektrizitätsgenossenschaft Aristau Logo

Elektrizitätsgenossenschaft Aristau

Since 1912 · 1–10 empl.

Elektrizitätsgenossenschaft Aristau is a private-law cooperative that supplies electrical energy. It procures and distributes electricity to end customers and offers tariffs for households, businesses, agriculture and public institutions.

Energy producerElectricity supplyTariff and consumption informationEnergy return feed-in from PV plants
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #28
Elektro-Genossenschaft Oberrüti Logo

Elektro-Genossenschaft Oberrüti

Since 1912 · 1–10 empl.

Elektro-Genossenschaft Oberrüti supplies customers with electricity and operates an electricity distribution network. For telecommunications, it runs a coaxial distribution network and a fibre-optic network reaching buildings.

Energy producerElectricity supplyElectricity prices and tariffsFibre-optic connection (FTTH)
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #29
Elektrizitäts - Genossenschaft Mülligen Logo

Elektrizitäts - Genossenschaft Mülligen

Since 1915 · 1–10 empl.

Elektrizitäts - Genossenschaft Mülligen supplies electricity to the municipality and its cooperative members and operates its own electricity network, including transformers, distribution cabinets, cables and public lighting.

Energy producerElectricity supplyTariffs and connection chargesCustomer portal
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #30
Elektra Genossenschaft Baldingen Logo

Elektra Genossenschaft Baldingen

Since 1915 · 1–10 empl.

Elektra Genossenschaft Baldingen operates and maintains the electricity distribution network and supplies electricity in its service area. It offers electricity products from hydropower and solar energy, and pays for electricity fed into the grid.

Energy producerElectricity supplyFeed-in compensationTemporary connections
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #31
Elektra-Genossenschaft Bellikon-Hausen Logo

Elektra-Genossenschaft Bellikon-Hausen

Since 1915 · 11–20 empl.

Elektra-Genossenschaft Bellikon-Hausen procures and distributes electricity and maintains the power supply network in its service area. It provides services related to photovoltaic systems and, through its subsidiary, is involved in building and operating fibre-optic infrastructure.

Energy producerElectricityPhotovoltaic systemsCommunication
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #32
Elektrizitäts-Genossenschaft Aettenschwil Logo

Elektrizitäts-Genossenschaft Aettenschwil

Since 1915 · 11–20 empl.

Elektrizitäts-Genossenschaft Aettenschwil supplies customers and cooperative members with electricity and operates the local distribution network. Its services include energy and grid-connection advice, electricity tariffs, and support related to feeding renewable energy into the grid.

Energy producerElectricity supplyBuilding connectionCompensation for renewable energy
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #33
Kraftwerk Ryburg-Schwörstadt AG Logo

Kraftwerk Ryburg-Schwörstadt AG

Since 1926 · 11–20 empl.

Kraftwerk Ryburg-Schwörstadt AG harnesses the Rhine’s hydropower to generate electricity. The run-of-river plant directs water through four Kaplan turbines and feeds the resulting electricity into the grid.

Energy producerRyburg-Schwörstadt hydropower plantFish passage facilitiesBoat transfer facility
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #34
Elektrizitätsversorgung Geltwil Logo

Elektrizitätsversorgung Geltwil

Since 1950 · 1–10 empl.

Elektrizitätsversorgung Geltwil is the local electricity supply service, operated by Elektragenossenschaft Geltwil. It provides electricity and grid-use tariffs for households, companies and businesses, as well as for street lighting and construction power.

Energy producerElectricity supply
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #35
Genossenschaft ELEKTRA Oberrohrdorf Logo

Genossenschaft ELEKTRA Oberrohrdorf

Since 1961 · 1–10 empl.

Genossenschaft ELEKTRA Oberrohrdorf procures and distributes electricity and operates and maintains the electricity supply network in its service area. It also provides related services connected with energy supply.

Energy producerElectricityFibre-optic networkApplication for connection to the EOR network
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #36
ELEKTRA REMETSCHWIL, Genossenschaft Logo

ELEKTRA REMETSCHWIL, Genossenschaft

Since 1964 · 1–10 empl.

ELEKTRA REMETSCHWIL, Genossenschaft supplies customers with electricity. Its activities include natural electricity products, and it provides information about electricity tariffs and connections.

Energy producerElectricity supplyGrid operation and fault serviceGrid connection and connection application
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #37
genossenschaft elektra busslingen Logo

genossenschaft elektra busslingen

Since 1967 · 11–20 empl.

genossenschaft elektra busslingen supplies electricity to the Busslingen district and provides the infrastructure required for this service. In cooperation with IBW, its activities include network planning and maintenance, metering services, and maintenance of public lighting.

Energy producerElectricity supplyGrid connectionCustomer portal
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #38
Elektrizitätsgenossenschaft Hermetschwil-Staffeln Logo

Elektrizitätsgenossenschaft Hermetschwil-Staffeln

Since 1973 · 1–10 empl.

Elektrizitätsgenossenschaft Hermetschwil-Staffeln plans, builds and operates municipal infrastructure and provides services in energy, communications and public lighting. It supplies electricity to households and businesses and maintains the networks needed for this supply.

Energy producerEnergy supplyElectricity productsGreen electricity products
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #39
Kernkraftwerk Leibstadt AG Logo

Kernkraftwerk Leibstadt AG

Since 1973 · 500+ empl.

Kernkraftwerk Leibstadt AG operates a nuclear power plant that generates electricity. The plant provides a continuous supply of electricity for Switzerland.

Energy producerElectricity generationRadioactive waste disposalVisitor centre
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #40
Fernwärme Wynenfeld AG Logo

Fernwärme Wynenfeld AG

Since 1982 · 11–20 empl.

Fernwärme Wynenfeld AG operates a district heating network and supplies customers with heat from a waste incineration plant. The network delivers steam and hot water to commercial and institutional customers.

Energy producerDistrict heating supplySteam supplyHot-water supply
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #41
Argovia Energie AG Logo

Argovia Energie AG

Since 1989 · 1–10 empl.

Argovia Energie AG focuses on promoting and financing nuclear power in Switzerland. Its activities include developing proposals concerning existing nuclear power plants, their organisation and operation, decommissioning and waste management, as well as the development of next-generation reactors.

Energy producerAdvisory on nuclear energy and nuclear power plantsPROMATOMNuclear plant organisation as a public-private partnership
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #42
Axpo Systems AG Logo

Axpo Systems AG

Since 1992 · 101–500 empl.

Axpo Systems AG is an energy company that offers electricity and gas products as well as energy trading services. The company also provides solutions for PPAs, solar energy, hedging, flexibility marketing and guarantees of origin.

Energy producerElectricity supplyNatural gas supplyOrigination
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #43
Fernwärme Siggenthal AG Logo

Fernwärme Siggenthal AG

Since 1995 · 11–20 empl.

Fernwärme Siggenthal AG supplies customers through district heating networks with heat from the Turgi waste incineration plant. It provides network connections and, depending on the chosen product, services for operating, maintaining and servicing the installations.

Energy producerDistrict heating connectionDistrict heating supplyService and maintenance
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #44
Westfalen Gas Schweiz GmbH Logo

Westfalen Gas Schweiz GmbH

Since 2001 · 11–20 empl.

Westfalen Gas Schweiz GmbH supplies businesses and private customers with gases and standardised gas mixtures for industry, food production, laboratories, pharmaceuticals, medicine and other applications. Its activities include filling and distribution, propane, refrigerants and heat-transfer fluids, as well as advice, gas supply systems and related services.

Energy producerGasesServicesAccessories + supply systems
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #45
EDF Trading (Switzerland) AG Logo

EDF Trading (Switzerland) AG

Since 2004 · 1–10 empl.

EDF Trading (Switzerland) AG operates in wholesale energy markets. EDF Trading’s activities include trading power, natural gas, oil, LPG and environmental products, as well as providing market access and risk-management services.

Energy producerTrading services in the wholesale energy marketHedging, optimisation and risk managementMarket access for the wholesale energy market
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #46
Wyna Energie AG Logo

Wyna Energie AG

Since 2010 · 1–10 empl.

Wyna Energie AG supplies energy from natural gas and biogas and offers solar energy. It operates a gas network and provides energy consulting, building automation, and services related to gas installations and gas stations.

Energy producerNatural gas/biogasSolar energyEnergy consulting
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #47
KAWE AG Logo

KAWE AG

Since 2011 · 51–100 empl.

KAWE AG designs and manufactures special-purpose machinery, plants, assemblies and components to customer specifications. Its services include engineering, toolmaking and maintenance, mechanical and electrical engineering, sheet-metal processing, welding and quality assurance.

Energy producerEngineeringSpecial-purpose machine and plant constructionMechanical engineering and component construction
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #48
Elektra-Genossenschaft Siglistorf-Wislikofen-Mellstorf Logo

Elektra-Genossenschaft Siglistorf-Wislikofen-Mellstorf

Since 2011 · 1–10 empl.

Elektra-Genossenschaft Siglistorf-Wislikofen-Mellstorf supplies the municipalities of Siglistorf and Wislikofen with electricity. The cooperative builds, operates and maintains the necessary infrastructure and offers electricity tariffs.

Energy producerElectricity supplyGreen electricity productsTechnical control of electricity consumers
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #49
iStrom AG Logo

iStrom AG

Since 2013 · 11–20 empl.

iStrom AG pools electricity volumes and procures energy directly on the market for energy suppliers and grid operators. It develops procurement strategies and supports pricing for B2B customers, as well as the joint purchase of green electricity certificates.

Energy producerIndependent power procurementPricing for B2B customers in the supply areaGreen power certificates
ranQ Trust Score 4.1 out of 5.0, rated High, Rank #50

Energy producer in the Canton of Aargau

144Energy producerCommercial register (Zefix) · as of November 7, 2026
2010Median year of registrationCommercial register (Zefix) · as of November 7, 2026
144in the Canton of AargauCommercial register (Zefix) · as of November 7, 2026
1,614in SwitzerlandCommercial register (Zefix) · as of November 7, 2026
Locations

Energy producer in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of November 7, 2026

Largest places

Aarau9Baden6Seon6