Solar & Photovoltaics in Sion

Companies

All 14 companies in Sion

Sionic SA

Since 1966

PhotovoltaicsIntercom systemsEmergency and safety

View profile3(2)

ENERCO Sàrl

Since 2019

Photovoltaic installationsSelf-consumptionSolar carport

View profile5(1)

OIKEN SA

Since 2019

Solar photovoltaicsPhotovoltaicsSelf-consumption community

View profile2.8(70)

Coopérative Autovoltaic-VS

Since 2019

DIY photovoltaic systems

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SUNWELL Sàrl

Since 2020

Planning and dimensioning of alpine solar systemsYield modelling and energy potential analysisOptimisation of PV design and operating control

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Smartsuna SA

Since 2020

Autarkic solar installationConsulting and sizing of solar installationsSolar installation for businesses

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Skywatt SA

Since 2023

Photovoltaic installationSolar batteryCharging stations

View profile5(9)

Evaarist SA

Since 2024

Solar installation for home energy autonomySolar installation for energy autonomy for buildings and businessesBusiness engineering and project owner assistance (AMO)

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Electro-Service Christian Mühlheim

Since 1981

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AS

Alp-Sun SA

Since 2012

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ES

Equisol société coopérative

Since 2012

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EB

ENOIL BIOTECHNOLOGIES SA

Since 2019

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G4

Group 4 Photovoltaics (G4PV) AG

Since 2023

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SS

Swiss Sunshine SA

Since 2024

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Solar & Photovoltaics in Sion

14Solar & PhotovoltaicsCommercial register (Zefix) · as of September 26, 2026

2019Median year of registrationCommercial register (Zefix) · as of September 26, 2026

165in the Canton of ValaisCommercial register (Zefix) · as of September 26, 2026

3,940in SwitzerlandCommercial register (Zefix) · as of September 26, 2026

Locations

Solar & Photovoltaics in the region

Point size by number of companies per place.

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

Largest places

Martigny8 Brig6 Susten5 Sierre5 Savièse5 Saxon5

Place axis

Other industries in Sion

All companies in Sion

Real Estate Project Development381 Holding Companies321 Property Management212 Restaurants206 Real Estate Brokerage200 Architecture Firms116 IT Consulting & Services97 Management Consulting93 Fiduciary Offices79 Technical Consulting & Engineering78 Software Development74 General Contractors66 Advertising Agencies66 Automotive & Vehicle Trade59 Auto Repair Shops57 NGOs & NPOs54 Trade Fair & Event Organizers51 Hair Salons49 Financial Services42 Facility Management & Cleaning41 Other Service Industries40 Clubs, Bars & Event Venues40 Research & Development39 Coaching & Personal Development38 Plumbing & Building Services38 Building Maintenance36 Retail - Textiles & Clothing36 Electrical Planning & Installation35 Cultural & Educational Organizations35 Psychiatry & Psychotherapy35 Online Shops35 Construction & Project Management34 Logistics & Transport Companies34 Physiotherapy33 Recruitment & HR Consulting30 Continuing Education Institutes30 Insurance Brokerage & Consulting29 Medical Technology Industry29 Administrative Services28 Building Construction28 Painting & Plastering28 Retail - Food & Luxury Items28 Interior Design & Furnishing27 Sports & Recreation Instruction27 External Asset Management27 Viticulture26 Wholesale - General Specialty Trade26 Hotels26

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Solar & Photovoltaics inSion

All 14 companies in Sion

Solar & Photovoltaics in the region

Solar & Photovoltaics in other places

Other industries in Sion

Solar & Photovoltaics in
Sion