Energy Industry in the
Canton of Solothurn

33 companies in Energy Industry based in the Canton of Solothurn — name and year of registration from the commercial register. The list below shows them all.

Companies

All 33 companies in the Canton of Solothurn

Nuklearforum Schweiz

Since 1959

Information and dialogue platform for nuclear energyMembershipEvents

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Alpiq Hydro Aare AG

Since 2000

Hydropower generationOperation and maintenance of hydropower plantsExpansion and renewal of hydropower plants

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Aare Energie AG (a.en)

Since 2002

Electricity supplyNatural gas and biogas supplyWater supply

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apex AG

Since 2003

Biogas upgradingNatural gas refuelling stationsMaintenance of natural gas refuelling stations and biogas upgrading plants

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AEK Pellet AG

Since 2003

Wood pellets (AEK-Pellets®)Pellet heatingPlanning and construction of pellet storage

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eug INFRA AG

Since 2004

Service companiesBilling servicesServices for partner Elektras

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Waldenergie AG

Since 2009

Wood pelletsMobile pellet logisticsFirewood

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HME - Technologies GmbH

Since 2010

Magnets and magnetic componentsSpecial and rare metals and alloysBatteries and energy systems

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ennovatis Schweiz AG

Since 2010

Energy monitoring and managementMetering and billing solutionsBuilding automation

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inesco AG

Since 2010

Sodium-ion battery storage systemsHome energy storage (sodistore home)Commercial and industrial energy storage (sodistore pro)

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Windpark Burg AG

Since 2011

Wind farm project BurgProject information on environment and wind

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Energiewirt GmbH

Since 2012

Biomethane contractingBiomethane project developmentTarget agreements and WERZ certification

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Mollet & Co. AG

Since 2015

Electrical installation inspectionsAccredited inspectionsSpecial services

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Windpark Homberg AG

Since 2016

Wind farm project Homberg

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Arnold AG

Since 2020

EnergyTelecomTransport

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Emmenhof Energie AG

Since 2020

Rental of apartments, commercial spaces and office/warehouse premisesDevelopment and conversion of the Emmenhof siteSupplying the site with renewable energy and district heating

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4Energie AG

Since 2021

Design, planning, construction, financing and operation of energy facilities

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Plattenstrom GmbH

Since 2023

Solar systems / PhotovoltaicsBalcony solar systemSolar storage

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ennovatis Energiemanagement AG

Since 2023

Energy monitoring and managementMetering and billing solutionsBuilding automation

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Alpiq AG

Energy tradingEnergy facilitiesEnergy Solutions

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Fenergie AG

Since 2007

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Hydrospider AG

Since 2019

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GK Wasserkraft GmbH

Since 2002

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KWKO (Kleinwasserkraftwerk Oberdorf) GmbH

Since 2006

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Birs Wasserkraft AG

Since 2006

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ALPIQ ENERGY SE, Prag, Zweigniederlassung Niedergösgen

Since 2009

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entürliberg GmbH

Since 2011

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asontec GmbH

Since 2013

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Geo Explorers AG

Since 2016

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Marcus Rohrer - Development & Consulting

Since 2017

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bi-Box Energy GmbH

Since 2020

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Energieholz Mittelland AG

Since 2023

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CCUS GmbH

Since 2024

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Energy Industry in the Canton of Solothurn

33Energy IndustryCommercial register (Zefix) · as of September 23, 2026

2011Median year of registrationCommercial register (Zefix) · as of September 23, 2026

33in the Canton of SolothurnCommercial register (Zefix) · as of September 23, 2026

1,457in SwitzerlandCommercial register (Zefix) · as of September 23, 2026

Locations

Energy Industry in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of September 23, 2026

Largest places

Olten7

Place axis

Other industries in the Canton of Solothurn

All companies in the Canton of Solothurn

Property Management960 Holding Companies805 Restaurants645 Management Consulting628 IT Consulting & Services608 Real Estate Project Development529 Real Estate Brokerage509 Automotive & Vehicle Trade478 Auto Repair Shops451 Technical Consulting & Engineering372 Fiduciary Offices359 Facility Management & Cleaning332 Software Development325 Advertising Agencies313 Architecture Firms302 Coaching & Personal Development301 Logistics & Transport Companies292 Online Shops270 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 & Tiling188 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 & Clothing147 Continuing Education Institutes145 Retail - Food & Luxury Items145 Recruitment & HR Consulting132 NGOs & NPOs127 Solar & Photovoltaics120 Joinery115

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Energy Industry in theCanton of Solothurn

All 33 companies in the Canton of Solothurn

Energy Industry in the region

Energy Industry in other places

Other industries in the Canton of Solothurn

Energy Industry in the
Canton of Solothurn