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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
DirectorySolar & Photovoltaics

Solar & Photovoltaics

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3'202 companies found

arbatherm AG Logo

arbatherm AG 

Winterthur · Since 1987

The core activity of Arbatherm AG is the planning, consulting, installation and maintenance of solar, heating and sanitary systems, with a focus on renewable energies and sustainable solutions.

Technical Consulting & EngineeringPlumbing & Building ServicesSolar & Photovoltaics
View profile4.3(4)
Bai Angelo e figlio SA Logo

Bai Angelo e figlio SA 

Ascona · Since 2003

The core activity of Bai Angelo e Figlio SA is the planning, consulting, installation, maintenance and repair of sanitary and heating systems, including solar, irrigation and swimming pool systems. The company also offers a 24-hour emergency service and standby service.

Plumbing & Building ServicesSolar & Photovoltaics
View profile4(4)
Blanke Automation GmbH Logo

Blanke Automation GmbH 

Bremgarten Ag · Since 2013

The core activity of BLANKE automation GmbH encompasses the development, production, and installation of customer-specific solutions in the following areas: 1. Industrial Automation: Planning, engineering, and realization of projects in industrial automation, including the development of PLC controls and RFID systems. 2. Air and Climate Systems: Development and production of control systems for air and climate systems, including the manufacture of standard solutions and customized systems. 3. Photovoltaics: Planning and installation of modern solar systems, including the optimization of self-consumption and monitoring of solar energy production. 4. Monitoring and Visualization: Development and provision of monitoring systems, such as remoteclick, for monitoring and visualization of machine and plant data. The company thus offers a wide range of services and products tailored to the needs of its customers in the areas of industrial automation, air and climate systems, photovoltaics, and monitoring.

Solar & Photovoltaics
View profile5(4)
Centorbi Electrotecnic Sagl Logo

Centorbi Electrotecnic Sagl 

Balerna · Since 2004

The core activity of Centorbi Electrotecnic Sagl is to provide services and solutions in the field of electrical engineering, particularly in the following areas: electrical installations (e.g. in residential buildings, offices, factories), live cleaning of electrical switchgear, planning and installation of photovoltaic systems, electrical planning and design, and 24/7 emergency service for electrical emergencies. The company focuses on providing safe, efficient, and innovative solutions to meet the needs of its customers.

Solar & Photovoltaics
View profile5(4)
Claudio Bernasconi Impianti sanitari e riscaldamenti Logo

Claudio Bernasconi Impianti sanitari e riscaldamenti 

Manno · Since 2010

The core activity of Claudio Bernasconi is the installation, maintenance and repair of sanitary facilities, heating systems and general technical systems, including solar systems, gas systems, water pipes, irrigation systems and heat pumps.

Solar & Photovoltaics
View profile5(4)
Crettaz Electricité SA Logo

Crettaz Electricité SA 

Mase · Since 2009

The core activity of Crettaz Électricité is to provide services in the field of electrical engineering, including: installation and maintenance of electrical systems (LOW CURRENT | HIGH CURRENT | DOMOTICS), consulting and planning of electrical projects, carrying out repairs and maintenance work (troubleshooting), and implementing electrical solutions for private, commercial and public institutions. The company thus offers comprehensive electrical services to meet the needs of its customers.

Solar & Photovoltaics
View profile5(4)
DILEO ENZO GmbH Logo

DILEO ENZO GmbH 

Cham · Since 2001

The core activity of Dileo Enzo GmbH encompasses the planning, installation, maintenance and repair of sanitary and heating systems, including the elimination of water damage and mold. Additionally, the company offers services in the field of solar thermal energy, heat pumps and basic maintenance of building technology systems. It also acts as a general contractor for renovations and new installations of bathrooms and heating systems.

Solar & Photovoltaics
View profile4.8(4)
Domelec Sàrl Logo

Domelec Sàrl 

Corin-De-La-Crête · Since 2023

The core activity of Domelec Sàrl consists in the planning, installation and optimization of: 1. Photovoltaic systems, 2. Energy storage systems, 3. Intelligent charging stations for electric vehicles, and 4. Domotics systems for energy optimization (particularly with the LOXONE brand). The company thus offers solutions for the generation, storage and optimal use of renewable energy, particularly solar energy.

Solar & Photovoltaics
View profile5(4)
D. Ramseier AG Logo

D. Ramseier AG 

Grünenmatt · Since 1979

The core activity of Ramseier AG is building technology, particularly the planning, installation and maintenance of: sanitary and heating systems, ventilation systems, sheet metal work, solar systems and industrial piping. The company offers these services for the construction and maintenance of buildings and has specialized in building technology.

Sheet Metal WorkSolar & Photovoltaics
View profile4(4)
eatec Elektro Automation GmbH Logo

eatec Elektro Automation GmbH 

Gontenschwil · Since 2012

The core activity of eatec Elektro Automation GmbH encompasses the following areas: * Electrical engineering: electrical planning, industrial installation and lighting concepts * Automation: software engineering, retrofit, safety concepts and control cabinet construction & maintenance * Solar systems * Agricultural technology The company thus offers services and solutions in the fields of electrical engineering, automation and renewable energy as well as agricultural technology.

Solar & Photovoltaics
View profile4(4)
edion AG Logo

edion AG 

Trübbach · Since 2016

The core activity of Edion AG is the planning, implementation and maintenance of renewable energy solutions, particularly in the areas of photovoltaics, heat pumps and power storage. The company offers comprehensive services, from situation analysis and concept development to installation, maintenance and monitoring of systems. The goal is to provide customers with individually tailored energy solutions that are both ecologically and economically viable.

Solar & Photovoltaics
View profile5(4)
EGA Energy SA Logo

EGA Energy SA 

Courroux · Since 2021

The core activity of EGA Energy SA is the planning, implementation and maintenance of energy and electrical installations, including: photovoltaic systems and energy generation, electrical installations (strong and weak current), domotics and building automation, telecommunications and data cabling, fire protection and intrusion detection systems, and energy distribution and management. The company offers these services to various customer groups, including private households, commerce, industry and public institutions.

Electrical Planning & InstallationSolar & PhotovoltaicsTelecommunications
View profile5(4)
Elektro Bachmann AG Logo

Elektro Bachmann AG 

Brienz Be · Since 1992

The core activity of Elektro Bachmann AG encompasses the planning, installation, maintenance and repair of electrical systems, as well as the sale of household appliances, telecommunications services, photovoltaic systems and central vacuum cleaners.

Solar & Photovoltaics
View profile4(4)
Elektro Grogg AG Logo

Elektro Grogg AG 

Koppigen · Since 2004

Elektro Grogg AG provides electrical services including low- and high-voltage installations and the planning, installation and maintenance of photovoltaic systems. The company also sells and repairs household appliances, offers turnkey solar and storage solutions, rents lifting platforms and delivers related service work.

Solar & Photovoltaics
View profile5(4)
Elektrokonstrukt AG Logo

Elektrokonstrukt AG 

Lucerne · Since 2016

Elektrokonstrukt AG is an engineering firm specializing in electrical planning and fire protection for building projects. It provides consulting and design for electrical systems across energy, lighting, safety and communication, including digital building and photovoltaic solutions. Services include project studies, procurement and execution documentation, site supervision, quality assurance and development of fire safety and evacuation/emergency response plans.

Solar & Photovoltaics
View profile5(4)
Elektrokonstrukt AG Logo

Elektrokonstrukt AG 

Zurich · Since 2018

Elektrokonstrukt AG develops interdisciplinary complete solutions for electrical engineering in building construction, covering energy, lighting, safety, communication, digital construction and photovoltaics. The company prepares fire safety concepts, evacuation and fire brigade operation plans, coordinates specialist planners and carries out on-site quality assurance during project realization. Services include project studies, feasibility analyses, independent tenders, execution documentation, site management and commissioning.

Solar & Photovoltaics
View profile5(4)
ESAP Sàrl Logo

ESAP Sàrl 

Satigny · Since 2022

The core activity of ESAP Sàrl is the planning, installation and implementation of solar systems, both for the production of electrical energy through photovoltaics and for the generation of hot water and heat through solar thermal energy.

Solar & Photovoltaics
View profile5(4)
e-Systeme AG Logo

e-Systeme AG 

Münchenstein · Since 1983

The e-Systeme AG company offers services in the field of renewable energies, particularly: * Planning, installation and maintenance of heat pumps, photovoltaic systems, battery storage and electromobility solutions * Consulting and implementation of individual energy systems for private households and companies * Impulse consulting for efficient and sustainable energy concepts. The company's core activity is the planning, installation and maintenance of renewable energy and electromobility systems.

Energy SuppliersSolar & Photovoltaics
View profile5(4)
Fitze Dach AG Logo

Fitze Dach AG 

Bülach · Since 2006

The core activity of Fitze Dach AG encompasses the provision of services and works in the field of roof and facade construction, including: roof renovations and cleaning, installation of solar systems on roofs, building insulation, sheet metal work, facade construction, balcony extensions and sealing, as well as maintenance and repair work on roofs and facades. The company also offers consulting and support for applying for subsidies for insulation and renovation work.

Solar & Photovoltaics
View profile5(4)
GB SCOSSA 2000 SAGL Logo

GB SCOSSA 2000 SAGL 

Vacallo · Since 2005

GB SCOSSA 2000 SAGL provides plumbing services and carries out installation, maintenance and repair of sanitary, heating and air-conditioning systems. Its services include heat pump installation and repair, installation of solar thermal/photovoltaic panels (in cooperation with a partner), drain cleaning and video inspection, heating-system flushing, and sheet‑metal/roofing work.

Solar & Photovoltaics
View profile3.5(4)
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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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