Solar & Photovoltaics in Winterthur

Companies

All 30 companies in Winterthur

KMN Elektro-Ingenieurbüro AG

Since 1976

Electrical planning for high-voltage installationsElectrical planning for low-current systemsDesign of photovoltaic systems

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Heinz Schmid AG Elektro-Anlagen

Since 1980

PhotovoltaicsInstallationsRenovation

View profile4.6(34)

Ego Elektrikergenossenschaft

Since 1982

Photovoltaic systemsElectrical installationsBuilding automation

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arbatherm AG

Since 1987

HeatingSolarPlumbing

View profile4.3(4)

Genossenschaft "SolVent"

Since 1993

Advice and support for solar installationsLoans for solar installationsFinancing and operation of large solar installations

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Stähli Haustechnik AG

Since 1995

PlumbingHeatingVentilation

View profile4.5(46)

Schwarzwälder AG

Since 1996

Pitched roofFlat roofSolar system

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Senero AG

Since 2005

Photovoltaic systemsStorage solutions (batteries)Off-grid solutions

View profile4.9(11)

Fluxim AG

Since 2007

Simulation Software (Setfos)Upscaling Simulation Software (Laoss)Optoelectric Characterization (Paios)

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Elektro Bürgin AG

Since 2008

Electrical installationsSolar PV and charging stationsFault and customer service

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Genossenschaft Rysolar Plus

Since 2012

Solar installations at Kantonsschule RychenbergInformation work on renewable energy and photovoltaicsData retrieval and yield monitoring of the solar installation

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Isler + Kägi AG Bedachungen

Since 2016

Pitched roof renovationFlat roof renovationPhotovoltaic systems

View profile4.6(5)

Genossenschaft Wintisolar

Since 2018

Photovoltaic consulting, planning and installationElectrical installationsPlanning, tendering and feasibility studies

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Märki Energie und Technik

Since 2019

ConsultingPlanningImplementation

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Ovenstone Engineering GmbH

Since 2019

Smart MeteringConsultingEngineering

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W. Rokitzky AG

Since 2023

Heating and coolingVentilation and air conditioningPlumbing

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Metesan GmbH

Since 2023

Solar photovoltaicsBattery storageCommercial power storage

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engitec AG

Since 2023

Photovoltaic systemsEnergy storage solutionsE-mobility

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E-Sol Energy Solutions Hugo Campos Fonseca

Since 2024

AdvisoryDesign and planningInstallation, mounting, commissioning, instruction

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Inmova AG

Since 2024

Electrical installations for caravansElectrical installations for shipsStand-alone solar solutions for remote island sites

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Sabtron Services GmbH

Since 2024

Photovoltaics & energy technologySecurity & building servicesCleaning & maintenance

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GROUPE CURIE - GEFARM AG

Since 2025

BESS technologiesIndustrial energy solutionsPower-to-X systems

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KA

Krisol AG

Since 2009

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WE

Wild Electronics Systems

Since 2012

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SN

SCHNELLI NAIKUNI ENERGY SYSTEMS

Since 2014

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SG

Solar-EK GmbH

Since 2024

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GG

Gedaso GmbH

Since 2024

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EE

Erneuerbare Energien Winterthur GmbH

Since 2025

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NS

Nexus Solaris 21 AG

Since 2026

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MK

Mastermind Kraus

Since 2026

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Solar & Photovoltaics in Winterthur

30Solar & PhotovoltaicsCommercial register (Zefix) · as of September 23, 2026

2018Median year of registrationCommercial register (Zefix) · as of September 23, 2026

511in the Canton of ZurichCommercial register (Zefix) · as of September 23, 2026

3,941in SwitzerlandCommercial register (Zefix) · as of September 23, 2026

Locations

Solar & Photovoltaics in the region

Point size by number of companies per place.

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

Largest places

Zurich97 Hinwil12 Dübendorf12 Bülach11 Uster9 Wallisellen8 Bauma7 Hombrechtikon7 Rafz7 Adliswil7

Place axis

Other industries in Winterthur

All companies in Winterthur

IT Consulting & Services356 Management Consulting352 Restaurants327 Software Development284 Coaching & Personal Development234 Property Management224 Technical Consulting & Engineering211 Architecture Firms189 Advertising Agencies189 Facility Management & Cleaning179 Fiduciary Offices165 Holding Companies154 Online Shops131 Real Estate Project Development123 Trade Fair & Event Organizers121 Real Estate Brokerage114 Automotive & Vehicle Trade110 Painting & Plastering109 Other Service Industries107 Continuing Education Institutes106 Hair Salons105 NGOs & NPOs102 Auto Repair Shops101 Beauty Salons93 General Contractors91 Cultural & Educational Organizations88 Building Maintenance84 Construction & Project Management83 Wholesale - General Specialty Trade81 Psychiatry & Psychotherapy79 Catering78 Recruitment & HR Consulting74 Logistics & Transport Companies70 Flooring & Tiling69 Non-Medical Healthcare Professions69 Web Portals & Platform Companies66 Retail - Food & Luxury Items66 Wholesale - Food & Luxury Items66 Photography64 Sports & Recreation Instruction60 Retail - Textiles & Clothing60 Film & TV Production59 Retail - General Specialty Trade59 Electrical Planning & Installation58 Food Processing58 Plumbing & Building Services57 Clubs, Bars & Event Venues57 Sealing & Insulation54

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Solar & Photovoltaics inWinterthur

All 30 companies in Winterthur

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