Energy Suppliers in the
Canton of St. Gallen

101 companies in Energy Suppliers based in the Canton of St. Gallen — name and year of registration from the commercial register.

Companies

50 of 101 companies

Elektrizitätswerk Jona-Rapperswil AG

Since 1902

Electricity productsSolar photovoltaicGrid services

View profile4(21)

Elektrizitätswerk Sennwald Genossenschaft

Since 1911

Electricity supplyElectrical installations / industrial solutionsSpeed Net Sennwald network

View profile4.8(21)

Elektra Gams Genossenschaft

Since 1921

Electricity supplyElectricity tariffsFibre-optic network

View profile4.4(11)

Elektrizitätswerk Uznach AG

Since 1941

Electricity supplyPhotovoltaicsBattery storage

View profile4.4(7)

Elektrizitätsversorgung Kaltbrunn AG

Since 1947

Electricity supplyGas supplySmart Energy

View profile5(5)

Elektrizitätswerk Schmerikon AG

Since 1947

Electricity supplyRenewable electricity productsEnergy products for market customers

View profile4.5(8)

Elektro-Genossenschaft Ulisbach

Since 1950

Electricity supplyHouse connectionsPhotovoltaic systems

View profile1(2)

NeoVac AG

Since 1972

Smart EnergyEnergy MonitoringSelf-Consumption Pool (ZEV)

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NeoVac ATA AG

Since 1979

Heat and cold meteringWater meteringMonitoring of energy flows

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Martin Zeller AG, Elektrizitätswerk

Since 1979

Electricity supplyPublic street lighting

View profile4.8(6)

GRAVAG Energie AG

Since 1979

Natural Gas SupplyBiogas SupplyLiquefied Gas Services

View profile2.4(8)

Hydroelectra AG

Since 1986

Electricity generation from small hydropower

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Fernheizung Breite AG

Since 1991

District heating supplyDistrict heating pipeline network

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EVS AG

Since 1992

Gas energyBiogasWater / pipeline construction

View profile5(1)

Kraftwerk Trempel AG

Since 1993

Hydropower generationLetting of commercial and cultural spaces

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Energie Zürichsee Linth AG

Since 1999

District heatingGas and biogasEnergy consulting

View profile4.9(7)

CRE & ART Barbara Berchtold

Since 1999

Regulation of electricity and gas marketsDispute resolution and sanctions (CoRDiS)Deliberations

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Thurwerke AG

Since 2001

ElectricityWaterCommunication

View profile4.8(6)

rwt Regionalwerk Toggenburg AG

Since 2001

Electricity supplyWater supplyDistrict heating

View profile4(8)

EVS Energieversorgung Schänis AG

Since 2002

Electricity supplyNatural gas supplyPhotovoltaics

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FLAGA Suisse GmbH

Since 2003

Bottled gas / gas cylindersGas tanks / gas in tanksService and installation

View profile3.7(27)

Natur Energie Kaltbrunn AG

Since 2005

Small hydropower plants Wilen and BruggmühleLocal electricity communities (LEG)Smart Energy

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Energie Rheintal AG

Since 2005

District heatingWaste heat utilisationWood intake

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Broder Erdwärme GmbH

Since 2006

Geothermal borehole probesConnecting pipesPrefabricated garages

View profile4.8(4)

Rhy Biogas AG

Since 2007

Biogas upgrading and injection into the gas gridAcceptance of organic waste materialsWaste disposal and anaerobic digestion of green waste and kitchen waste

View profile3.5(2)

Holzenergiezentrum Toggenburg Genossenschaft

Since 2007

District heating Nesslau–Neu St. JohannWood-fired power plant with wood-chip boilerHeat and power cogeneration

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Kraftwerk Burentobel AG

Since 2007

Electricity generation from small hydropower

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St. Gallisch-Appenzellische Kraftwerke AG

Since 2009

Electricity supplySolar photovoltaicsHeating solutions

View profile3.9(7)

Rovi Energie AG

Since 2010

Project developmentConcept studyFeasibility study

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Förderverein energietal toggenburg

Since 2010

Energy consultingAdvisory service for renewable heatingAdvisory service: solar power from the roof

View profile4.5(4)

toggenburg energie finanz ag

Since 2010

Energy consultingEnergy & sustainability trainingEnergy project and site development

View profile4.5(4)

Fernwärme Gähwil AG

Since 2010

District heating network

View profile5(5)

gommisWALDKraft AG

Since 2011

Heat supply with wood-chip heatingDistrict heating networkMeter reading

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ENG, Erneuerbare Energie-Nutzungsgesellschaft AG

Since 2011

New-build and refurbishment of power plantsOperation of power plants

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MSM Energie GmbH

Since 2013

ApartmentsHeat contracting

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Wärmeverbund Rüthi AG

Since 2013

Renting of apartments and commercial premisesLease of arable land and allotment gardensForest management

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Holzenergie Delta AG

Since 2015

District heating / heat networkHeat generation with wood chip firing

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Wärmeverbund Kaltbrunn AG

Since 2016

District heating network Kaltbrunn AG

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Technische Betriebe Flawil (TBF)

Since 2016

Electricity SupplyDrinking Water SupplyGas Supply (gazenergie)

View profile3(2)

Alpa Fernwärme AG

Since 2019

District heating modules24-hour on-call service

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Wasserstoffproduktion Ostschweiz AG

Since 2019

Hydrogen productionHydrogen fueling stationsTours of hydrogen production

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Murg Flums Energie

Since 2020

Electricity supplyWater supplyEnergy production

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see energie ag

Since 2021

District heating from Lake Constance waterEnergy supplyFree Cooling

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Pizol Energie AG

Since 2021

District heatingHeat generation from wood chips

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Quellfrosch GmbH

Since 2024

Micro hydropower plantsCoanda water intakesPhotovoltaic systems

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Säntis Energie AG

Gas supplyBiogasHeating and energy solutions

View profile4.8(6)

Elektrogenossenschaft Moos-Dieselbach

Since 1930

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Kraftwerke Sarganserland AG (KSL)

Since 1961

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Elektrizitätswerk Wildhaber AG

Since 1967

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THURPOWER AG

Since 2002

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Energy Suppliers in the Canton of St. Gallen

101Energy SuppliersCommercial register (Zefix) · as of September 27, 2026

2012Median year of registrationCommercial register (Zefix) · as of September 27, 2026

101in the Canton of St. GallenCommercial register (Zefix) · as of September 27, 2026

1,553in SwitzerlandCommercial register (Zefix) · as of September 27, 2026

Locations

Energy Suppliers in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of September 27, 2026

Largest places

St. Gallen12 Jona6

Place axis

Other industries in the Canton of St. Gallen

All companies in the Canton of St. Gallen

Property Management2,418 Holding Companies2,058 Management Consulting1,737 Restaurants1,585 Real Estate Project Development1,459 IT Consulting & Services1,275 Real Estate Brokerage1,057 Technical Consulting & Engineering984 Fiduciary Offices984 Auto Repair Shops873 Software Development856 Advertising Agencies824 Automotive & Vehicle Trade785 Coaching & Personal Development741 Facility Management & Cleaning707 Online Shops702 Wholesale - General Specialty Trade677 Architecture Firms664 Painting & Plastering585 Construction & Project Management574 Building Maintenance559 General Contractors543 Mechanical Engineering Industry541 Plumbing & Building Services529 Interior Construction526 Food Processing526 Hair Salons509 Other Service Industries498 Trade Fair & Event Organizers489 Logistics & Transport Companies480 Electrical Planning & Installation438 Timber Construction & Carpentry437 Metal Construction403 Horticulture & Landscaping402 Wholesale - Machinery & Technical Equipment399 Beauty Salons391 Flooring & Tiling389 Retail - Food & Luxury Items386 Building Construction384 Catering373 Retail - General Specialty Trade365 Repair of Machinery & Electronic Devices358 Textile & Clothing Industry351 Continuing Education Institutes348 Retail - Textiles & Clothing344 Recruitment & HR Consulting328 Joinery326 NGOs & NPOs318

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Energy Suppliers in theCanton of St. Gallen

50 of 101 companies

Energy Suppliers in the region

Energy Suppliers in other places

Other industries in the Canton of St. Gallen

Energy Suppliers in the
Canton of St. Gallen