Solar & Photovoltaics in the
Canton of St. Gallen

229 companies in Solar & Photovoltaics based in the Canton of St. Gallen — name and year of registration from the commercial register.

Companies

50 of 229 companies

Elektrizitätswerk Jona-Rapperswil AG

Since 1902

Electricity productsSolar photovoltaicGrid services

View profile4(21)

Elektrizitätswerk Uznach AG

Since 1941

Electricity supplyPhotovoltaicsBattery storage

View profile4.4(7)

Dürr Haustechnik AG

Since 1971

HeatingPlumbingSheet metal works

View profile4.7(7)

Elektro Nüesch AG

Since 1975

Electrical installationsCustomer serviceGrid construction and power supply infrastructure

View profile4.7(13)

Weibel AG Bedachungen Fassadenbau

Since 1978

Flat roofPitched roofFacade

View profile5(1)

Heeb AG Heizungsservice

Since 1979

Heating consulting, installation, service and repairSolar thermal and photovoltaicsSanitary installations

View profile4.6(19)

Carl Franke AG

Since 1980

Sheet metal workRoofing workLightning protection systems

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Sanitär Gemperle AG

Since 1981

Sanitary installationsBathroom design and renovation24/7 customer service and on-call service

View profile4.3(6)

Podhradsky AG, Heizungen

Since 1982

HeatingSolar

View profile5(2)

Heizplan HPA AG

Since 1983

Photovoltaic systemsHeat pumpsBattery storage systems

View profile5(16)

Vetsch Gebäudehüllen AG

Since 1983

Building envelopesService & maintenancePitched roof

View profile4.6(15)

Ingenieurteam IFE AG

Since 1984

PhotovoltaicsEVU consultingGeneral contracting

View profile5(6)

W. Bissegger AG Wil

Since 1984

Heating system solutionsAir-to-water heat pumpGround-to-water heat pump

View profile4.7(3)

Gschwend Holding AG Zuzwil

Since 1984

New Timber ConstructionConversion, Renovation and RefurbishmentInterior Fit-Out

View profile5(4)

Müggler AG Spenglerei-Sanitär

Since 1985

Sanitary installationsSheet metal works and roofing workLightning protection systems

View profile5(7)

Lenz Heiner

Since 1988

Solar thermal systemsPhotovoltaic systemsHeating systems

View profile4.8(24)

René Hugentobler AG

Since 1989

Heating Installation & ReplacementHeat PumpBurner Service

View profile4.2(5)

Steinlin Energie AG

Since 1989

PhotovoltaicsEnergy storage and energy managementZEV / LEG

View profile5(1)

Dach Walser AG

Since 1990

RoofingFlat roofing workSheet metal work

View profile5(11)

Lampert + Walker AG

Since 1991

Heat pumpDistrict heatingSolar thermal systems

View profile4.8(10)

Hadorn Bauberatungen AG

Since 1992

RoofingSheet metal roofingSolar and photovoltaic systems

View profile4.2(6)

H. Lenz AG

Since 1993

Heating systemsSolar systemsHeat emitters

View profile4.8(24)

Zillig GmbH

Since 1993

Bathroom renovationsConsulting and planningRepairs

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Werner Büchel AG

Since 1993

Heating renovationBathroom planning & renovationSanitary installations

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Josef Egger individuell Heizen

Since 1993

Pellet heating systemsWall heating

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Dolder Wärmetechnik AG

Since 1995

Heat pump and heat recovery systemsPlanning and engineering of heating, ventilation, air-conditioning and refrigeration systemsDevelopment and production of heat pumps, controls and ventilation components

View profile3.2(13)

Hans Wittenwiler AG

Since 1995

Heating planning and installationRenovation and modernisation of heating systemsHeat pumps

View profile4.6(14)

Heinz Brändle Bedachungen AG

Since 1995

RoofPhotovoltaicsFacade

View profile5(5)

Andreas Sprecher Haustechnik und Oelbrennerservice GmbH

Since 1996

Heating systemsSanitary installationsRenewable energies

View profile5(1)

HSH Installationstechnik AG

Since 1996

Sanitary installationsHeatingVentilation systems

View profile4.9(11)

Roland Haldner GmbH

Since 1996

Sanitary installationsHeating installationsHeat pump technology

View profile4.8(9)

Gmür Energie GmbH

Since 1997

PhotovoltaicsEnergy planningBattery storage & e-mobility

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A. Winiger Sanitäre Anlagen GmbH

Since 1997

Sanitary installationsService and repairsBoiler maintenance

View profile4.6(9)

Scheiwiller Bedachung-Spenglerei-Sanitär AG

Since 1997

Building envelopeSolar energy systemsSanitary installations

View profile4.9(7)

Rutz + Partner Elektro AG

Since 1998

Electrical InstallationsPhotovoltaic SystemsPlanning / Consultancy

View profile4.8(10)

Roth Bedachungen Fassaden AG

Since 1998

Pitched roofFlat roofFacades

View profile5(7)

Selm Heizsysteme AG

Since 1998

Heating systemsConsultingPlanning

View profile4.8(15)

Oberholzer Sanitär AG

Since 1999

Plumbing systems & installationsSolar thermal systemsVentilation

View profile4.7(12)

SolarTec Rheintal GmbH

Since 1999

Photovoltaic systemsConsulting and project supportSales of components and storage solutions

View profile5(5)

Delta Solar GmbH

Since 2000

Storage tanks and boilersCustom-made storage tanksAccessories

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Lucido solar AG

Since 2001

climate-positive building technology

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EVS Energieversorgung Schänis AG

Since 2002

Electricity supplyNatural gas supplyPhotovoltaics

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Eberhard Sanitär GmbH

Since 2002

Plumbing / service lineSolar thermal systemsDescaling

View profile5(3)

Elektro Kleiner AG

Since 2002

Electrical installationsBuilding services and automationEnergy and sustainability

View profile5(3)

Stähli Othmar Heizung-Sanitär AG

Since 2002

Sanitary installationsHeating systemsSolar thermal systems

View profile4.9(18)

Patrik Metzger

Since 2002

Photovoltaic systemsRoofing workSheet metal work

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Junod Wasser + Wärme AG

Since 2002

Solar / PVHeatingPlumbing

View profile4(4)

Dietrich Spenglerei GmbH

Since 2002

Sheet metal workPlumbingPhotovoltaics

View profile4.9(8)

Elektro Möhl AG

Since 2002

Photovoltaic systemsElectrical installationsConsulting and planning

View profile4.3(6)

Solarhaus Holding AG

Since 2003

Heat pump construction / Futura systemSolar installationsPlanning and consulting

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Show 38 more companies

Solar & Photovoltaics in the Canton of St. Gallen

229Solar & PhotovoltaicsCommercial register (Zefix) · as of August 26, 2026

2013Median year of registrationCommercial register (Zefix) · as of August 26, 2026

229in the Canton of St. GallenCommercial register (Zefix) · as of August 26, 2026

3,202in SwitzerlandCommercial register (Zefix) · as of August 26, 2026

Locations

Solar & Photovoltaics in the region

Point size by number of companies per place.

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

Largest places

St. Gallen22 Jona8 Widnau7 Rorschach7 Buchs SG7 Flawil6 Wil SG6 St. Margrethen SG5 Balgach5 Niederuzwil5

Place axis

Other industries in the Canton of St. Gallen

All companies in the Canton of St. Gallen

Restaurants1,120 Property Management1,024 Management Consulting966 Real Estate Project Development785 IT Consulting & Services780 Auto Repair Shops726 Fiduciary Offices701 Holding Companies672 Technical Consulting & Engineering628 Software Development568 Advertising Agencies555 Automotive & Vehicle Trade518 Architecture Firms498 Facility Management & Cleaning480 Real Estate Brokerage473 Online Shops450 Painting & Plastering444 Interior Construction436 Mechanical Engineering Industry433 Coaching & Personal Development432 Hair Salons430 Plumbing & Building Services419 Food Processing417 Electrical Planning & Installation354 Logistics & Transport Companies352 Timber Construction & Carpentry330 Metal Construction324 Horticulture & Landscaping321 Flooring & Tiling308 Textile & Clothing Industry294 Beauty Salons279 Retail - Textiles & Clothing269 General Contractors262 Repair of Machinery & Electronic Devices257 Joinery254 Building Maintenance247 Building Construction245 Recruitment & HR Consulting234 Retail - Food & Luxury Items228 Other Service Industries227 Continuing Education Institutes226 Civil Engineering225 Retail - General Specialty Trade217 Sports & Recreation Instruction214 NGOs & NPOs213 Wholesale - Machinery & Technical Equipment212 Retail - Bicycles & Sports Equipment207 Electrical Industry197

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Solar & Photovoltaics in theCanton of St. Gallen

50 of 229 companies

Solar & Photovoltaics in the region

Solar & Photovoltaics in other places

Other industries in the Canton of St. Gallen

Solar & Photovoltaics in the
Canton of St. Gallen