Solar & Photovoltaics in
St. Gallen
30 companies in Solar & Photovoltaics based in St. Gallen — name and year of registration from the commercial register. The list below shows them all.
All 30 companies in St. Gallen
solarmotion ag
Since 2015 · 21–50 empl.4.5(17)
The core activity of solarmotion ag is the planning, installation and maintenance of solar systems, in particular photovoltaic systems, on the roofs of residential, commercial and industrial buildings. The company also offers special solutions such as in-roof, on-roof and solar facades, and supports customers in roof renovation and the integration of solar systems.
Eco SolarHome GmbH
Since 2021 · 1–10 empl.4.8(59)
The core activity of eco SolarHome is the planning, consulting, sales and installation of photovoltaic systems and related products such as solar modules, storage systems, charging stations for e-mobility and smart home solutions. The company also offers services such as creating solar calculators and tariff calculators and supports customers in selecting and implementing renewable energy systems.
St. Gallisch-Appenzellische Kraftwerke AG
Since 2009 · 101–500 empl.3.9(7)
The company's core activity encompasses the sustainable supply and networking of people and businesses with energy and data. This includes the entire value chain, from energy procurement to planning, construction, operation, and maintenance of networks and facilities, as well as financing solutions, sales, and billing. The company's business areas include in particular: electricity generation, electricity and heat supply, operation of a modern fiber optic network, internet and data connections, generation of renewable energy through hydroelectric power plants, wood-fired power plants, photovoltaic systems, and wind farms, as well as hydrogen production. The company thus offers a comprehensive range of services and products in the field of energy and data supply.
Weibel AG Bedachungen Fassadenbau
Since 1978 · 21–50 empl.5.0(2)
The company provides services and products in the field of roof and facade construction, including thermal insulation, energy efficiency, renovation, repair and maintenance of roofs and facades, as well as specialized services such as green roofing, snow retention and snow removal.
Zillig GmbH
Since 1993 · 11–20 empl.
The core activity of Zillig GmbH is the planning, installation and repair of sanitary facilities, particularly in the area of bathroom renovations, as well as the execution of plumbing work, solar systems and lightning protection systems.
SN Erneuerbare Energie AG
Since 2012 · 11–20 empl.
The core activity of SN Energie AG is the production, trading and distribution of electricity, including the supply of energy supply companies (EVU) and traders with electricity and heat power network (HKN). This also includes services such as portfolio optimization, asset and participation management, as well as the provision of solutions for balancing energy, quantity tolerance and the documentation of the ecological footprint.
Genossenschaft Solar St.Gallen
Since 2012 · 11–20 empl.
The core activity of the company 'Genossenschaft Solar St.Gallen' consists of investing in and operating solar power plants for the production of renewable energy. The cooperative enables its members to participate in the production of solar power by purchasing share certificates, thereby offering an opportunity to invest in renewable energy.
ibee swiss renewable energy investments GmbH
Since 2014 · 11–20 empl.
The core activity of ibee swiss renewable energy investments GmbH is investment, consulting and project development in the field of renewable energies, particularly in solar energy. The company develops, finances and operates photovoltaic systems in Switzerland and internationally, including in Sri Lanka, Burkina Faso and Ghana. It also supports the development of solar irrigation infrastructure and promotes the use of electric vehicles in these countries.
Solventure AG
Since 2008 · 11–20 empl.
The core activity of Systeme.io is to provide a platform for marketing automation, sales funnel creation, email marketing, website creation, affiliate marketing, and online course creation. The company offers a range of tools and features to support customers in automating their marketing activities, creating sales funnels, managing email campaigns, creating websites, running affiliate marketing campaigns, and creating online courses.
eenfinity schweiz ag
Since 2022 · 11–20 empl.
The core activity of eenfinity schweiz ag is the holistic development and implementation of renewable energy solutions, including: project planning and development in the field of renewable energies, financing and economic analysis, execution and construction supervision of projects, operation and optimization of plants, and specialized planning in the areas of solar systems, energy storage, e-mobility and sector coupling. The company thus offers a comprehensive range of services to support customers in the development and implementation of renewable energy solutions.
Fortis Solar AG
Since 2021 · 1–10 empl.
The core activity of Fortis Solar AG is the planning, development, construction and operation of industrial photovoltaic systems for companies in Switzerland. They offer services such as project development, construction and execution, contracting and financing, as well as operation and maintenance of solar systems to help companies achieve their sustainability goals and ensure environmentally friendly energy supply.
Grob AG Gebäudehüllen
Since 1992 · 1–10 empl.5.0(2)
The core activity of Grob AG Gebäudehüllen is the planning, execution and renovation of building envelopes, including conversions and renovations.
Fortis Tech AG
Since 2023 · 1–10 empl.
Fortis Tech AG provides commercial and industrial photovoltaic systems, developing, designing and delivering large‑scale solar installations for property owners and businesses. Services include project development and design, construction and installation, contracting and financing solutions, and operation and maintenance with monitoring and performance analysis.
PV-Clean AG
Since 2025 · 1–10 empl.
PV-Clean AG provides professional, material-friendly cleaning for photovoltaic systems. Its services include solar panel cleaning, PV thermography, and the removal of lichen and other persistent deposits.
Lerm Solar AG
Since 2024 · 1–10 empl.
Lerm Solar GMBH provides consulting, sales, system planning and installation of photovoltaic systems, along with project management and economic feasibility calculations.
PV-Tec GmbH
Since 2022 · 11–20 empl.5.0(3)
The core activity of PV-Tec GmbH is the planning, installation and consulting of solar systems and e-mobility solutions for private and commercial customers in Switzerland. This includes the construction of photovoltaic systems on roofs, facades and railings, consulting on energy efficiency and applying for subsidies.
Halo Solar Arikan
Since 2026 · 1–10 empl.
Halo Solar Arikan plans and installs photovoltaic systems, battery storage solutions and wallboxes for residential and commercial properties. The company supports projects from 3D roof analysis and quotation through installation, commissioning and assistance with Pronovo processing.
EOS Energy Solutions AG
Since 2015 · 1–10 empl.
EOS Energy Solutions AG plans and integrates large-scale solar thermal projects for industrial processes, including technical and financial structuring. The company provides turn-key solutions based on Fresnel collectors for process heat, steam, and applications such as industrial air conditioning.
Solarpro-Reinigung KLG
Since 2026 · 1–10 empl.
Solarpro-Reinigung KLG provides professional cleaning services for solar panels and photovoltaic systems. Its services also include inspections, efficiency analyses, and maintenance contracts for regular cleaning and upkeep.
Vacalor Technology GmbH
Since 2018 · 1–10 empl.
swissenergie ag erneuerbare energien
Since 1979 · 1–10 empl.
SOC Invest AG
Since 2006 · 1–10 empl.
Sterona GmbH
Since 2009 · 1–10 empl.
HX Innovations GmbH
Since 2015 · 1–10 empl.
Inceptum Capital AG
Since 2018 · 1–10 empl.
green24 ag
Since 2018 · 1–10 empl.
Sonne und Strom, N. Weber
Since 2021 · 1–10 empl.
GN Energy GmbH
Since 2022 · 1–10 empl.
Klein Energie&Fenstertechnik GmbH
Since 2023 · 1–10 empl.
Klein Solar
Since 2024 · 1–10 empl.
Solar & Photovoltaics in St. Gallen
Solar & Photovoltaics in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of October 11, 2026
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