Solar & Photovoltaics in Solothurn

Companies

All 14 companies in Solothurn

Saudan Immo AG

Since 2007

Sheet-metal work & flat roofingBathroom renovationHeating replacement & heat pump

View profile4.6(78)

Genossenschaft OPTIMA-SOLAR Solothurn

Since 2011

Photovoltaic systems on roofsProvide roof spaceSolar power for municipalities

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SOLEIS AG

Since 2011

Photovoltaic systemsBattery storage systemsHeat pumps

View profile5(4)

Fankhauser Solar AG

Since 2014

Photovoltaic wholesaleConsultingPlanning & design

View profile3(2)

SGT Energie AG

Since 2021

Building services planningHVACSE designEnergy consulting

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Y-SOLAR Analytics GmbH

Since 2022

Analysis / AdvisoryZEV SystemsMonitoring

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Solstis Energy AG

Since 2023

Solar power systemHome EnergyCommercial Energy

View profile4.9(47)

PrimoSolar GmbH

Since 2024

Photovoltaic systemsBattery storage solutionsZEV installations

View profile5(7)

Nodera AG

Since 2025

Solar system saleTemporary supportSolar system opportunity

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HM

H. Metzner, Solarenergie-Technik

Since 1993

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HS

Helvetia Solar AG

Since 2010

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ZA

Z-Solar AG

Since 2018

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NG

Novasuntech GmbH

Since 2025

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RT

Riggenbach Technologies

Since 2025

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Solar & Photovoltaics in Solothurn

14Solar & PhotovoltaicsCommercial register (Zefix) · as of September 25, 2026

2021Median year of registrationCommercial register (Zefix) · as of September 25, 2026

121in the Canton of SolothurnCommercial register (Zefix) · as of September 25, 2026

3,940in SwitzerlandCommercial register (Zefix) · as of September 25, 2026

Locations

Solar & Photovoltaics in the region

Point size by number of companies per place.

Source: commercial register (Zefix) · as of September 25, 2026

Largest places

Deitingen8 Olten6 Lohn-Ammannsegg6 Grenchen5

Place axis

Other industries in Solothurn

All companies in Solothurn

Holding Companies96 Management Consulting92 Property Management89 Restaurants87 IT Consulting & Services78 Architecture Firms59 Real Estate Project Development57 Fiduciary Offices56 Coaching & Personal Development50 Software Development50 Real Estate Brokerage45 Advertising Agencies44 Hair Salons43 Beauty Salons31 NGOs & NPOs30 Cultural & Educational Organizations30 Technical Consulting & Engineering29 Continuing Education Institutes29 Recruitment & HR Consulting27 Catering25 Trade Fair & Event Organizers23 Psychiatry & Psychotherapy22 Retail - Textiles & Clothing22 Clubs, Bars & Event Venues21 Retail - General Specialty Trade20 Other Service Industries18 Food Processing17 Retail - Food & Luxury Items17 Construction & Project Management16 Sports & Recreation Instruction16 Naturopathic Clinics16 Non-Medical Healthcare Professions16 Physiotherapy16 Medical Technology Industry16 Web Portals & Platform Companies16 Wholesale - General Specialty Trade16 Online Shops15 Retail - Bicycles & Sports Equipment15 Painting & Plastering14 Financial Services14 Hotels14 Administrative Services13 Law Firms & Notary Offices13 General Contractors13 Pension Funds13 Plumbing & Building Services12 General Practitioner Clinics12 IT Infrastructure & Cloud12

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Solar & Photovoltaics inSolothurn

All 14 companies in Solothurn

Solar & Photovoltaics in the region

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Solothurn