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.
50 of 62 companies
Kernkraftwerk Gösgen-Däniken AG
Since 1973 · 500+ empl.4.2(264)
The core activity of Kernkraftwerk Gösgen-Däniken AG is the safe, reliable and economic generation of electricity and process heat through the operation of a nuclear power plant.
SV Kompostieranlage Bellach AG
Since 1991 · 1–10 empl.4.9(12)
SV Kompostieranlage Bellach AG operates a composting facility that processes biogenic wastes into soil, fertilizer and wood products. The site accepts various biogenic materials, offers visitor tours, and sells packaged and bulk products such as topsoil, compost and wood chips.
MEGASOL ENERGIE AG
Since 2004 · 101–500 empl.4.0(168)
Megasol is a leading solar manufacturer specializing in the development, production, and distribution of solar modules. The company's core activity encompasses the planning, design, and implementation of solar projects, from rough conception to detailed design and commissioning. This also includes collaboration with partners such as architects, investors, installers, and operators, as well as consulting and supporting customers in the realization of their solar projects.
LANDI RESO, Genossenschaft
Since 1912 · 21–50 empl.4.2(1083)
The core activities of LANDI RESO are: 1. Agriculture: Supplying farmers with seasonal and regional production means, consumer goods and services, as well as supporting the marketing of agricultural products. 2. Retail: Supplying the population in the Solothurn/Grenchen region with food and daily necessities through the operation of LANDI stores and TopShops. 3. Energy: Operating AGROLA gas stations, delivering heating oil and wood pellets, as well as offering solar energy services in cooperation with AGROLA. These three business areas are the core activities of the company and are described as such on the website.
Regio Energie Solothurn
Since 1995 · 51–100 empl.4.3(6)
The company's core activity encompasses the provision of energy and utility services, including: gas supply and distribution, electricity supply, heat and heating services, e-mobility and fleet management, contracting and energy efficiency consulting, drinking water supply and maintenance, building technology, including electrical, plumbing and heating services, public lighting and emergency services. The company offers these services to both private and business customers, as well as municipalities.
SWG
Since 1997 · 51–100 empl.4.1(29)
The company's core activity is the supply of energy, water and heat to the local population. The company produces and distributes electricity, heat and water and is also responsible for the networks and supply systems. It is also committed to a sustainable future and promotes the production of renewable energies in the region.
eug Elektra Untergäu Genossenschaft
Since 1907 · 11–20 empl.4.4(7)
The core activity of eug Elektra Untergäu Genossenschaft is the supply of energy, particularly the procurement, production, distribution and sale of electricity, as well as the maintenance and operation of the associated network infrastructure. The company also offers various services such as public lighting, the installation and maintenance of photovoltaic systems and consulting on energy products.
Genossenschaft Elektra Äusseres Wasseramt EAW
Since 1908 · 11–20 empl.
The company's core activity is the electricity supply for the municipalities of Aeschi, Etziken, Horriwil and Hüniken, including the provision of electricity tariffs, energy consulting and management, as well as the operation and maintenance of the power grid in these areas.
Genossenschaft ELEKTRA OEKINGEN HALTEN
Since 1913 · 1–10 empl.
Genossenschaft ELEKTRA OEKINGEN HALTEN procures electrical energy, operates the distribution network and supplies electricity to customers. It serves the municipalities of Oekingen and Halten and offers membership for consumers within its service area.
SO-ENERGIE AG
Since 1987 · 11–20 empl.
The core activity of SO-ENERGIE AG is the supply of energy and heat, in particular the supply of customers with natural gas and the operation of a comprehensive natural gas distribution network in the Thal-Gäu-Bipperamt region.
Aare Versorgungs AG (AVAG)
Since 1999 · 11–20 empl.
Aare Versorgungs AG (AVAG) is a regional energy supplier providing services in electricity, gas, heat and water. The company carries out operational management of a municipal utility and offers services to third parties, including network operation, energy production (including photovoltaic systems), billing, energy advisory and mobility solutions such as charging infrastructure and refuelling stations.
Regio Netze Solothurn AG
Since 2001 · 51–100 empl.
Regio Netze Solothurn AG operates energy infrastructure and provides services for electricity, natural gas and renewable gases, district heating, drinking water and building technology. Its services include grid operation, energy consulting, customer services (portal, billing enquiries, smart‑metering), 24/7 fault response, e‑mobility solutions and contracting for private, commercial and municipal customers.
HEnergie Härkingen HEH
Since 2005 · 11–20 empl.
The core activity of HEnergie Härkingen (HEH) is the supply of electricity and the operation of a distribution network for electricity in the Härkingen region. The company is 100% owned by the municipality of Härkingen and offers services such as electricity supply, meter reading, connection and disconnection, as well as fault repair services.
Alpiq EcoPower Schweiz AG
Since 2006 · 51–100 empl.
Alpiq EcoPower Schweiz AG is a Swiss electricity producer and energy services company. The company is active in power generation, energy trading, marketing, and energy optimisation, and it also provides energy solutions for industrial and business customers.
Elektra Dulliken AG
Since 2007 · 1–10 empl.
The core activity of the company is the management and administration of the municipality of Dulliken, including the provision of services such as resident control, financial management, building administration, school administration and Social Region Upper Niederamt (SON), as well as supporting citizens and businesses in the municipality.
Städtische Betriebe Olten (SBO)
Since 2009 · 11–20 empl.
Städtische Betriebe Olten (SBO) is the municipal utility whose operational management is carried out by Aare Energie AG (a.en); its activities include electricity, gas, heat and water supply and related services provided to third parties.
Energie Kestenholz
Since 2009 · 1–10 empl.
The core activity of the company is the management and organization of the municipality of Kestenholz, including the provision of services to citizens, such as the issuance of documents, waste disposal, childcare, event planning, and the management of municipal property.
Aare-Tessin AG für Elektrizität (Atel)
Since 2009 · 11–20 empl.
Aare-Tessin AG für Elektrizität (Atel) is an energy utility that supplies electricity, gas, heat and water and operates distribution network services. It also provides energy production and storage services (including photovoltaic systems), metering and connection services, energy advice, mobility solutions and services for third parties.
Alpiq EcoPower AG
Since 2010 · 51–100 empl.
Alpiq EcoPower AG is an energy company focused on power generation, energy trading and energy services. The website highlights assets in hydropower, wind power, solar energy, thermal power plants and battery storage systems, as well as solutions for energy management and the operation of renewable energy sources.
QLTECH Gisler
Since 2011 · 1–10 empl.
The core activity of QLTech Gisler is the development, consulting and support of heat network and district heating projects, particularly in the regions of Biel and Solothurn. The company offers independent district heating consulting, impulse consulting and support in customer acquisition. It works closely with other companies and organizations to develop and implement heat network and district heating projects.
Elektrizitätsversorgung Egerkingen
Since 2011 · 1–10 empl.
The company's core activity is the supply of electricity, in particular the operation of a distribution network with voltage levels of 16kV (medium voltage) and 400V/230V (low voltage) for the municipality of Egerkingen.
Elektrizitätsversorgung Oberbuchsiten
Since 2014 · 11–20 empl.
The company's core activity is the supply of electricity, in particular the operation and maintenance of a municipality's distribution network, including the provision of electricity and the maintenance of street lighting.
Wärmeverbund Schnottwil AG
Since 2014 · 11–20 empl.
Wärmeverbund Schnottwil AG operates a district heating network supplied by a wood-chip boiler (900 kW). The network provides heat to private households, the local school building, a fire brigade/municipal workshop and several commercial properties, and the company offers information on connection agreements, costs and available subsidies.
a.en Control AG
Since 2019 · 1–10 empl.
a.en Control AG carries out acceptance inspections, periodic checks and spot inspections of electrical installations and issues safety certificates when installations meet requirements. Services include inspections for ownership or tenant changes, checks of street lighting, cable distribution cabinets, transformer stations and photovoltaic systems, and safety advice.
Elektra Wolfwil AG
Since 1906 · 11–20 empl.
The core activity of Elektra Wolfwil AG is the supply of electricity and related services, including the maintenance and repair of power grids as well as the provision of electricity tariffs and fees.
Elektra Gretzenbach AG
Since 2007 · 21–50 empl.4.3(6)
Elektra Gretzenbach AG is the municipality of Gretzenbach and provides information on administration, local authorities, services, and official notices. The website also includes details on events, online services, room reservations, and other services for residents and businesses.
Elektra Fulenbach (EFU)
Since 2009 · 11–20 empl.
The core activity of Elektra Fulenbach EFU is the electricity supply and operation of the power grid within the municipality of Fulenbach. This includes the maintenance and expansion of the network, meter reading, invoicing and fault clearance. The company is also responsible for complying with the Electricity Supply Ordinance (StromVV) and the annual recalculation of electricity tariffs.
Hydrospider AG
Since 2019 · 11–20 empl.
The core activity of Hydrospider AG is the procurement, production and logistics of green hydrogen from CO2-free production, particularly for use in the mobility and logistics sectors, as well as the marketing and distribution of verifiably green hydrogen for the decarbonization of heavy-duty transport.
Nahwärmeverbund Wolfwil
Since 2011 · 11–20 empl.5.0(1)
Nahwärmeverbund Wolfwil is a service of the municipality of Wolfwil related to district heating operations and supply. The website points to municipal administration, services, and energy-related local infrastructure.
ThermNet Fulenbach AG
Since 2024 · 1–10 empl.
ThermNet Fulenbach AG operates a district heating network whose heat source is a wood-chip combustion plant, supplemented by an alternative energy carrier. It supplies end customers (private households, municipal properties, commercial, service and industrial enterprises, and public buildings) within a defined supply perimeter on a regular, safe, non-discriminatory basis and according to market-based principles.
BKW AEK Contracting AG
Since 2017 · 11–20 empl.3.0(2)
BKW AEK Contracting AG is a company of the BKW Group that produces climate-friendly district heat from renewable sources. The company handles planning, financing, construction, operation and maintenance of heat networks and customer connections for residential and industrial buildings.
EWD
Since 2005 · 1–10 empl.2.7(10)
The core activity of EWD (Energie- und Wasserversorgung Derendingen) encompasses the supply of households and businesses with electricity, water, and fiber-optic internet. This includes the provision of electricity and water supply, maintenance and upkeep of lines and infrastructure, as well as the provision of services such as household installation checks and street lighting.
Elektra Mümliswil-Ramiswil Genossenschaft
Since 1907 · 11–20 empl.5.0(1)
The core activity of Elektra Mümliswil-Ramiswil is to supply the municipality of Mümliswil-Ramiswil with electricity and multimedia services, including the maintenance and upkeep of the electricity and multimedia distribution network.
trafopower AG
Since 2004 · 11–20 empl.4.0(2)
The core activity of Trafopower AG encompasses the areas of transformers and network services. Specifically, the company offers the following services: Maintenance and servicing of transformers, including oil analysis, oil regeneration, oil preparation and oil drying; Transportation and disposal of transformers; Network services, including planning, construction and maintenance of transformer stations, distribution cabinets and cable systems; Sales and delivery of transformers, spare parts and accessories; Consulting and service for energy systems and networks. The company positions itself as a specialist for transformers and energy systems and offers its services throughout Switzerland and abroad.
EV Energieversorgung Biberist
Since 2005 · 11–20 empl.3.0(8)
The core activity of EnergieVersorgung Biberist (EVB) is the supply of electricity to the municipality of Biberist, including the maintenance and expansion of the power grid, as well as the generation and distribution of electricity.
Genossenschaft Elektra Thal
Since 1911 · 11–20 empl.4.0(1)
Genossenschaft Elektra Thal operates an electricity distribution network and provides electricity services such as energy supply, network-usage billing, meter reading and connection works for residential and commercial customers. It also offers energy-consumption advice, support for self-consumption communities, e-mobility charging infrastructure and public lighting services.
Nodera AG
Since 2025 · 1–10 empl.
Nodera AG develops and operates photovoltaic systems and provides services to finance and flexibilize solar installations, including temporary or permanent purchase of systems to release capital. Services include turnkey solutions, an offer-calculator tool and 24/7 monitoring of installations via Nodaira.
GEBNET AG
Since 2009 · 11–20 empl.1.3(15)
The core activity of GEBNET AG is the supply of energy, in particular electricity, as well as related services such as billing, maintenance of electricity meters and provision of information on tariffs and products.
Elektra Genossenschaft Holderbank
Since 1906 · 1–10 empl.
The core activity of Elektra Genossenschaft Holderbank is the safe and cost-effective supply of households and businesses in the municipality of Holderbank with electrical energy. This includes the planning, construction and maintenance of the power grid as well as the purchase of electrical energy at favorable conditions.
Wärmeverbund Laupersdorf Genossenschaft
Since 1994 · 1–10 empl.
WKG Energie Service AG
Since 1999 · 1–10 empl.
BAWA Biogas GmbH
Since 2005 · 1–10 empl.
Elektra Däniken AG
Since 2007 · 1–10 empl.
Elektra Obergösgen AG
Since 2007 · 1–10 empl.
Windpark Schwängimatt AG
Since 2009 · 1–10 empl.
Vind Invest GmbH
Since 2009 · 1–10 empl.
Wärme Mittelland AG
Since 2012 · 1–10 empl.
Wärmeverbund Unterramsern AG
Since 2012 · 1–10 empl.
kurth & co hydro GmbH
Since 2014 · 1–10 empl.
Genossenschaft Wärmeverbund Aetigkofen
Since 2014 · 1–10 empl.
Energy Suppliers in the Canton of Solothurn
Energy Suppliers in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of October 10, 2026
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