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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,219 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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IndustryEnergy & Environment
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Matching companies

9'014 companies found

SolarSys GmbH Logo

SolarSys GmbH 

Hombrechtikon · Since 2012

The core activity of Solarsys GmbH is the planning, implementation and maintenance of energy-related solutions for private homes and businesses, in particular: photovoltaic systems, power storage solutions, heat pumps and new heating solutions. The company also offers design, installation, maintenance and cleaning of these systems.

Solar & Photovoltaics
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Solarteam AG Logo

Solarteam AG 

Rotkreuz · Since 2009

The core activity of Solarteam AG is the development, manufacture and sale of installation-friendly and aesthetically pleasing substructures for framed standard photovoltaic modules, in particular insertion systems, for on-roof, in-roof and facade installations.

Solar & Photovoltaics
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Solartech concept SA Logo

Solartech concept SA 

Lausanne · Since 2024

The core activity of Solartech Concept SA is the planning, installation and maintenance of renewable energy systems, particularly solar systems, as well as providing services in the field of energy efficiency and security. The company offers its customers a comprehensive range of services, from consulting and planning to the installation and maintenance of systems, to ensuring safety and efficiency.

Solar & Photovoltaics
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SolarTech Engineering SA Logo

SolarTech Engineering SA 

Marin-Epagnier · Since 2017

The core activity of SolarTech Engineering SA is the planning, installation and maintenance of solar systems, in particular photovoltaic systems, as well as consulting and implementing projects in the field of renewable energy. The company offers its customers a 'turnkey' solution, i.e. it takes care of all necessary steps from planning to commissioning and maintenance of the systems.

Solar & Photovoltaics
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Solartechnik & Energieoptimierung Pretscher Logo

Solartechnik & Energieoptimierung Pretscher 

Bauma · Since 2013

Solartechnik & Energieoptimierung Pretscher offers consultation, planning, installation and grid connection of photovoltaic systems, together with related services such as battery storage systems, assessments and certifications. The company serves residential, commercial, industrial and agricultural clients as well as alpine huts and provides energy consulting on thermal collectors, pellet heating and heat pumps.

Solar & Photovoltaics
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SolarTech Steffen Kopischke Logo

SolarTech Steffen Kopischke 

Rorschach · Since 2023

The core activity of SolarTech Steffen Kopischke is the planning, implementation and maintenance of environmentally friendly energy solutions, particularly in the field of solar technology. This includes the installation and servicing of solar systems, heat pumps and other sustainable energy systems. The company offers a wide range of solutions to meet the individual energy needs of its customers while having a positive impact on the environment.

Solar & Photovoltaics
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SOLAR-TEC SA Logo

SOLAR-TEC SA 

Dino · Since 1999

The core activity of Solar Tec SA is the development, manufacture and marketing of solar thermal and photovoltaic systems, in particular thermal and photovoltaic solar panels, which are used to generate hot water and electricity.

Solar & Photovoltaics
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solarUp Energie GmbH Logo

solarUp Energie GmbH 

Gstaad · Since 2012

The core activity of solarUp energie GmbH is the planning, installation and integration of photovoltaic systems for electricity generation, including the planning and installation of storage systems and the combination with other systems such as thermal modules and skylights to increase self-consumption.

Solar & Photovoltaics
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SOLARUS Genossenschaft für Sonnenenergie Logo

SOLARUS Genossenschaft für Sonnenenergie 

Russikon · Since 1991

The core activity of Solarus Russikon is the promotion and utilization of solar energy. The company installs and operates solar systems at various locations, such as school buildings, riding halls and club houses, and offers promotion programs for the use of solar energy.

Solar & Photovoltaics
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solartoys.ch, Peter Wüthrich Logo

solartoys.ch, Peter Wüthrich 

Heiden · Since 2016

solartoys.ch, Peter Wüthrich produces solar toys and sells solar kits, solar drives, solar modules and individual components and accessories via an online shop.

Solar & Photovoltaics
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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.