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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,089 companies indexed · Last updated: today
DirectorySolar & Photovoltaics

Solar & Photovoltaics

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3'203 companies found

4e elektrotechnik ag Logo

4e elektrotechnik ag 

Chur · Since 2010

The core activity of 4e elektrotechnik ag encompasses the areas of electrical engineering, electronics, engineering, and energy efficiency. Specifically, the company offers services and products in the following segments: * Electrical engineering: Installation, renovation, new construction, repairs, maintenance, industrial and commercial facilities, smart home residential buildings, control, process and production systems, LED lighting, electrical controls, network analysis and energy optimization. * Electronics: Multimedia, radio/TV, audio, video, multi-room sound systems, security systems, WLAN installations, IT and telematics solutions, automation and control systems, universal communication cabling, webcams and construction site cameras, digital signage infomedia displays and Click-Share presentation systems. * Engineering: Development and implementation of solutions for energy efficiency, smart home and building technology. * Energy efficiency: Consulting and services for energy-efficient solutions, such as photovoltaic systems, battery storage solutions, e-mobility charging stations, e-mobility management concepts, LED retrofits and thermography. Thus, the company offers a comprehensive range of services and products for the areas of electrical engineering, electronics, engineering and energy efficiency.

Solar & Photovoltaics
View profile4.2(15)
ABC Solar Sàrl Logo

ABC Solar Sàrl 

Corminboeuf · Since 2011

The core activity of ABC Solar SA consists of planning, installing and commissioning solar energy systems, in particular photovoltaic systems, for the private and commercial sectors, with a focus on self-consumption and sustainable energy supply.

Solar & Photovoltaics
View profile4.1(15)
agrobio schönholzer ag Logo

agrobio schönholzer ag 

Neukirch An Der Thur · Since 2011

agrobio schönholzer ag provides sanitary (plumbing), heating and gas installation services and offers system planning and project management as well as maintenance and repair, including boiler descaling and drain unclogging.

Solar & Photovoltaics
View profile4.7(15)
bollinger ag Logo

bollinger ag 

Ettenhausen Tg · Since 2019

The core activity of Bollinger AG is the planning, execution and maintenance of sanitary and heating systems for private households and companies. The company offers comprehensive services, from consulting to planning and execution to maintenance of sanitary and heating systems.

Solar & Photovoltaics
View profile4.9(15)
Brügger Haustechnik GmbH Logo

Brügger Haustechnik GmbH 

Aeschi So · Since 2011

The core activity of Brügger Haustechnik AG consists of planning, installing and maintaining building technology systems, particularly in the areas of heating, plumbing, ventilation and solar systems.

Solar & Photovoltaics
View profile4.9(15)
Dimension Solaire Sàrl Logo

Dimension Solaire Sàrl 

Bulle · Since 2008

The company Dimension Solaire Sàrl is primarily involved in the planning, installation and consulting of solar thermal and photovoltaic systems, as well as insulation, sheet metal work and roofing of buildings. It also provides comprehensive energy consulting and analysis for various customer groups, including private individuals, companies, farmers and public institutions.

Solar & Photovoltaics
View profile3.7(15)
Electro-Sol SA Logo

Electro-Sol SA 

Cossonay-Ville · Since 1983

The core activity of Electro-Sol SA is the development and implementation of concepts for renewable energy, particularly in the areas of: * Solar energy (photovoltaics) * Energy efficiency (audit and optimization) * Electric mobility * Heating (electric heating systems, heat pumps, etc.). The company offers solutions for private households and businesses to meet their energy needs and improve their environmental balance.

Solar & Photovoltaics
View profile4.8(15)
Elektro Fröhli AG Logo

Elektro Fröhli AG 

Rudolfstetten · Since 1983

Solar & Photovoltaics
View profile4.8(15)
Elektro Helvetia AG Logo

Elektro Helvetia AG 

Rotkreuz · Since 2023

The core activity of Elektro Helvetia AG is the planning, installation and maintenance of electrical systems, including: electrical installations for new buildings, renovations and conversions, lighting systems, photovoltaic systems, e-mobility solutions, building automation, HLKS installations (heating, ventilation, air conditioning, sanitation) and energy measurement concepts. The company also provides consulting, planning and implementation of electrical projects, including the installation of security systems and maintenance of existing systems.

Electrical Planning & InstallationSolar & Photovoltaics
View profile4.7(15)
Elektro Roth AG Logo

Elektro Roth AG 

Mettmenstetten · Since 1974

The core activity of Elektro Roth AG is the planning, installation and maintenance of electrical systems of all kinds, including repairs and services, for private individuals, companies, municipalities and administrations in the Affoltern district and surrounding areas.

Solar & Photovoltaics
View profile4.5(15)
Energiewendegenossenschaft Region Winterthur Logo

Energiewendegenossenschaft Region Winterthur 

Seuzach · Since 2017

The company ERW (Energiegenossenschaft Winterthur) is a non-profit cooperative that specializes in planning, consulting and supporting self-construction projects for photovoltaic systems (solar systems). The core activity of the company is to offer its members the opportunity to build and operate their own solar systems by providing expert advice, energy calculation, visualization, financing and installation support. The members are also the builders and can contribute to the realization of their systems through their own labor.

Solar & Photovoltaics
View profile4.9(15)
Energie Wettingen AG Logo

Energie Wettingen AG 

Wettingen · Since 2016

The company's core activity is the supply of households and businesses with electricity and drinking water, as well as the provision of energy-efficient and comfortable energy services, including photovoltaics, solar thermal energy, charging infrastructure and electrical specialist stores.

Energy SuppliersSolar & Photovoltaics
View profile3.5(15)
E. Zünd Haustechnik AG Logo

E. Zünd Haustechnik AG 

Safenwil · Since 2013

The core activity of Zünd Haustechnik is the provision of services and offers in the field of building technology, particularly in the areas of sanitary technology and heating technology. This includes the planning, installation, renovation and maintenance of sanitary facilities and heating systems, as well as emergency services and the repair of systems.

Solar & Photovoltaics
View profile4.6(15)
Future Solar Energie AG Logo

Future Solar Energie AG 

Oberwil B. Zug · Since 2023

Future Solar Energie AG plans, supplies and installs photovoltaic systems (in-roof, on-roof and flat-roof) and provides related products and services such as battery storage, EV chargers, monitoring and maintenance.

Solar & Photovoltaics
View profile5(15)
Gebr. Scheurer GmbH Logo

Gebr. Scheurer GmbH 

Lengnau Be · Since 1998

Gebr. Scheurer GmbH provides sanitary and heating installation services. The company carries out new construction, renovations, maintenance and repairs, including boiler descaling and water-softening systems. It installs oil, gas, pellet and wood heating systems, heat pumps, and thermal solar and photovoltaic systems.

Solar & Photovoltaics
View profile4.2(15)
Gebr. Willi Elektro AG Logo

Gebr. Willi Elektro AG 

Märwil · Since 1987

Gebr. Willi Elektro AG provides electrical installation services and photovoltaic systems. The company delivers planning and execution for residential, commercial and industrial electrical installations, including lighting, KNX/home automation, fire alarm and multimedia/telecom systems, as well as turnkey photovoltaic and battery-storage solutions, e-mobility services and a 24-hour emergency service.

Solar & Photovoltaics
View profile4.9(15)
Genossenschaft Elektra Sissach Logo

Genossenschaft Elektra Sissach 

Sissach · Since 1923

The core activity of Elektra Sissach includes the provision of electricity, telecommunications services, and internet via a fiber-optic network in the Sissach region. Specifically, the company offers the following services: electricity products and grid, solar energy, electromobility, telecommunications (including fiber-optic network), internet services, and TV services. As a result, the company is a regional energy and telecommunications provider offering a wide range of services to private and business customers in the Sissach region.

Solar & Photovoltaics
View profile3.9(15)
Grütter Bedachungen AG Logo

Grütter Bedachungen AG 

Beinwil Am See · Since 1984

The core activity of Grütter Bedachungen AG is the provision of services and solutions in the field of building envelopes, particularly in the areas of: Roofing (pitched roof, flat roof), Facade cladding (ventilated facades), Sheet metal work, Sealing (building sealing), Insulation, Repairs and maintenance of roofs and facades, Installation of solar systems (photovoltaics), Snow removal, Scaffolding and crane work. The company also offers energy consulting and training opportunities in the fields of roofing, sealing and sheet metal work.

RoofingSolar & Photovoltaics
View profile4.8(15)
Gübeli Sanitär AG Logo

Gübeli Sanitär AG 

Hinwil · Since 2020

The core activity of Gübeli Sanitär AG is the provision of services and offers in the field of sanitation, particularly in the areas of: installation, maintenance and repair of sanitary facilities; planning and execution of bathroom renovations; installation and maintenance of solar systems (for the generation of electricity and heat); installation and maintenance of comfort ventilation systems; and the use and utilization of rainwater. The company thus offers a comprehensive range of services in the field of sanitation and environmental technology.

Solar & Photovoltaics
View profile4.9(15)
Instalux SA Logo

Instalux SA 

Bellinzona · Since 1954

The core activity of Instalux SA is the installation and maintenance of electrical systems, including: installation of electrical systems for civil and industrial applications, construction of electrical switchgear, installation of renewable energy production systems (solar systems, micro-power plants), testing and maintenance of electrical systems, installation of information and telecommunications networks, and installation of telephone systems and communication systems. The company also offers consulting and planning services in the field of electrical systems, as well as a 24-hour emergency service.

Electrical Planning & InstallationSolar & Photovoltaics
View profile4.7(15)
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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.
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