Energy Suppliers in the
Canton of Solothurn

62 companies in Energy Suppliers based in the Canton of Solothurn — name and year of registration from the commercial register.

Companies

50 of 62 companies

Elektra Genossenschaft Holderbank

Since 1906

Electricity supplyGrid accessConnection requests

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eug Elektra Untergäu Genossenschaft

Since 1907

Energy productsGrid productsGrid connection

View profile4.4(7)

Elektra Mümliswil-Ramiswil Genossenschaft

Since 1907

Electricity supplyMultimedia / Cable networkPhotovoltaic systems

View profile5(1)

Genossenschaft Elektra Äusseres Wasseramt EAW

Since 1908

Electricity supplyService connectionConnection of energy generation systems

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Genossenschaft Elektra Thal

Since 1911

Electricity supplyGrid connections and construction power connectionsMetering and billing

View profile4(1)

LANDI RESO, Genossenschaft

Since 1912

AgricultureRetailEnergy

View profile4.2(1083)

Genossenschaft ELEKTRA OEKINGEN HALTEN

Since 1913

Electricity and grid usage tariffsFault service / on-call dutyMove notification

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Kernkraftwerk Gösgen-Däniken AG

Since 1973

Nuclear power electricity generationNuclear plant visitTraining for teachers

View profile4.2(225)

SO-ENERGIE AG

Since 1987

Natural gas supplyHeat supplyCustomer service

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SV Kompostieranlage Bellach AG

Since 1991

Biomass receptionComposting and anaerobic digestion servicesSale of soil products

View profile4.9(9)

Regio Energie Solothurn

Since 1995

Electricity supplyNatural gas and biogas supplyDistrict heating supply

View profile4.2(5)

SWG

Since 1997

ElectricityHeatWater

View profile4.1(29)

Aare Versorgungs AG (AVAG)

Since 1999

Electricity supplyElectricity supply in the open marketElectricity grid operation and connection

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Regio Netze Solothurn AG

Since 2001

Electricity supplyDistrict heating supplyWater supply

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trafopower AG

Since 2004

TransformersGrid servicesProducts

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MEGASOL ENERGIE AG

Since 2004

Photovoltaic solutionsSolar module technologiesBattery storage

View profile4.2(156)

HEnergie Härkingen HEH

Since 2005

Electricity supplyElectricity tariffs and feed-in compensationSelf-consumption communities

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EWD

Since 2005

Electricity supplyWater supplyFibre-optic connections

View profile2.7(10)

EV Energieversorgung Biberist

Since 2005

Electricity supplyDistrict heatingSolar power systems

View profile3(8)

Alpiq EcoPower Schweiz AG

Since 2006

Small hydropower projectsPower plant planning, construction and operationParticipation models for municipalities and concession authorities

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Elektra Dulliken AG

Since 2007

Electricity supply

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Städtische Betriebe Olten (SBO)

Since 2009

Electricity supplyWater supplyGas supply

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GEBNET AG

Since 2009

Electricity productsZEV, vZEV and LEGGEBNET self-consumption group

View profile1.3(15)

Energie Kestenholz

Since 2009

Electricity supplyElectricity tariffsQuestions and support for the electricity bill

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Aare-Tessin AG für Elektrizität (Atel)

Since 2009

Energy supplyGrid and safetyGeneration and storage

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Alpiq EcoPower AG

Since 2010

Feasibility studies and concepts for small power plantsPlanning, construction and operation of power plantsParticipation models for municipalities and concession authorities

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QLTECH Gisler

Since 2011

Heat network and district heating project developmentDistrict heating consultingImpulse consulting

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Elektrizitätsversorgung Egerkingen

Since 2011

Electricity supplyGrid operation and grid maintenanceConnection services

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Nahwärmeverbund Wolfwil

Since 2011

District heating supply

View profile5(1)

Elektrizitätsversorgung Oberbuchsiten

Since 2014

Electricity supplyElectricity tariffs and price overviewsSelf-consumption communities

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Wärmeverbund Schnottwil AG

Since 2014

District heatingBuilding connection to the district heating networkFault contact and technical support

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BKW AEK Contracting AG

Since 2017

District heating and heat networks

View profile3(2)

a.en Control AG

Since 2019

Electrical inspectionsInspections of infrastructure systemsAdvice on the safety of electrical installations

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ThermNet Fulenbach AG

Since 2024

District heating supply

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Nodera AG

Since 2025

Solar system saleTemporary supportSolar system opportunity

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Elektra Wolfwil AG

Since 1906

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Elektra Gretzenbach AG

Since 2007

View profile4.3(6)

Elektra Fulenbach (EFU)

Since 2009

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Hydrospider AG

Since 2019

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Wärmeverbund Laupersdorf Genossenschaft

Since 1994

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WKG Energie Service AG

Since 1999

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BAWA Biogas GmbH

Since 2005

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Elektra Däniken AG

Since 2007

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Elektra Obergösgen AG

Since 2007

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Windpark Schwängimatt AG

Since 2009

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Vind Invest GmbH

Since 2009

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Wärme Mittelland AG

Since 2012

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Wärmeverbund Unterramsern AG

Since 2012

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kurth & co hydro GmbH

Since 2014

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Genossenschaft Wärmeverbund Aetigkofen

Since 2014

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Energy Suppliers in the Canton of Solothurn

62Energy SuppliersCommercial register (Zefix) · as of September 26, 2026

2009Median year of registrationCommercial register (Zefix) · as of September 26, 2026

62in the Canton of SolothurnCommercial register (Zefix) · as of September 26, 2026

1,553in SwitzerlandCommercial register (Zefix) · as of September 26, 2026

Locations

Energy Suppliers in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of September 26, 2026

Largest places

Olten7 Solothurn7

Place axis

Other industries in the Canton of Solothurn

All companies in the Canton of Solothurn

Property Management960 Holding Companies806 Restaurants646 Management Consulting628 IT Consulting & Services607 Real Estate Project Development529 Real Estate Brokerage509 Automotive & Vehicle Trade477 Auto Repair Shops451 Technical Consulting & Engineering372 Fiduciary Offices359 Facility Management & Cleaning332 Software Development325 Advertising Agencies313 Architecture Firms302 Coaching & Personal Development301 Logistics & Transport Companies292 Online Shops269 Painting & Plastering265 Horticulture & Landscaping254 Building Maintenance246 Other Service Industries243 Plumbing & Building Services240 Hair Salons226 Wholesale - General Specialty Trade225 Mechanical Engineering Industry223 Interior Construction222 General Contractors213 Construction & Project Management202 Trade Fair & Event Organizers192 Flooring & Tiling187 Electrical Planning & Installation179 Catering179 Repair of Machinery & Electronic Devices175 Beauty Salons174 Building Construction160 Wholesale - Machinery & Technical Equipment158 Food Processing156 Metal Industry156 Metal Construction149 Retail - General Specialty Trade147 Retail - Textiles & Clothing146 Continuing Education Institutes145 Retail - Food & Luxury Items144 Recruitment & HR Consulting132 NGOs & NPOs127 Solar & Photovoltaics121 Joinery115

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Energy Suppliers in theCanton of Solothurn

50 of 62 companies

Energy Suppliers in the region

Energy Suppliers in other places

Other industries in the Canton of Solothurn

Energy Suppliers in the
Canton of Solothurn