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

Energy & Environment

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IndustryEnergy & Environment
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Matching companies

9'017 companies found

Clement Elektro AG Logo

Clement Elektro AG 

Landquart · Since 2000

The core activity of Clement Elektro AG is the planning, installation and maintenance of electrical systems, including high and low voltage systems, in new and renovation projects of residential, commercial and agricultural properties. In addition, the company offers a wide range of electrical services, such as smart home solutions, photovoltaics, security consulting, lighting, communication, IT networks, TV and SAT systems, as well as the sale and repair of household appliances.

Solar & Photovoltaics
View profile4.6(23)
Eco SolarHome GmbH Logo

Eco SolarHome GmbH 

St. Gallen · Since 2021

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.

Solar & Photovoltaics
View profile5(23)
Elektra Energie AG Jegenstorf Logo

Elektra Energie AG Jegenstorf 

Jegenstorf · Since 2001

Elektra Energie AG Jegenstorf supplies electricity products and provides energy services, including tariffs, photovoltaic solutions, self-consumption models and e-mobility offerings. The company also delivers grid services such as connections and public lighting, together with customer service and an online customer portal.

Energy Suppliers
View profile2.6(23)
End AG Logo

End AG 

Lucerne · Since 1960

The core activity of End AG is the planning, execution and maintenance of sanitary and heating systems, including bathroom renovations, attic conversions, heating and total renovations, as well as consulting and service in these areas.

Solar & Photovoltaics
View profile4.4(23)
Genossenschaft Elektra, Jegenstorf Logo

Genossenschaft Elektra, Jegenstorf 

Jegenstorf · Since 1903

Genossenschaft Elektra, Jegenstorf is an energy cooperative that procures and supplies renewable electricity from Swiss hydropower and locally produced solar energy. It plans, builds and operates distribution networks and provides services such as grid connections, photovoltaic and self-consumption models, electric vehicle charging solutions, public lighting maintenance and planning information for private, commercial and municipal customers.

Energy Suppliers
View profile2.6(23)
GTS SA Logo

GTS SA 

Crissier · Since 2008

The company specializes in planning, installing and maintaining photovoltaic systems for private individuals, farmers, businesses and public institutions. The core activities include the design and construction of solar systems, the installation of battery storage systems, charging stations for electric vehicles and the integration of smart home solutions.

Solar & Photovoltaics
View profile4.3(23)
Hug Sanitär + Heizungen AG Logo

Hug Sanitär + Heizungen AG 

Reinach Ag · Since 2008

The core activity of Hug Sanitär + Heizungen AG is the planning, consulting, execution and maintenance work in the fields of heating, sanitary and ventilation technology for building services.

Solar & Photovoltaics
View profile4.6(23)
IWS Solar AG Logo

IWS Solar AG 

Bauma · Since 1992

IWS SOLAR AG is a provider of products and services in the field of solar energy and renewable energies. The company's core activity includes the distribution of solar systems, emergency power and UPS systems, lightning protection and installation technology, as well as the planning and installation of solar systems for private and commercial customers. Additionally, the company also offers products for self-consumption optimization, pond pumps and other renewable energy products.

Solar & Photovoltaics
View profile4.7(23)
Kanal Blitz GmbH Logo

Kanal Blitz GmbH 

Dübendorf · Since 2004

The core activity of Kanal Blitz GmbH is the rehabilitation and maintenance of sewage pipes and channels, including sewer cleaning, sewer TV inspections, suction work, project consulting and emergency services.

Waste Management Industry
View profile4.5(23)
Kraftwerk Augst AG Logo

Kraftwerk Augst AG 

Augst Bl · Since 1983

The company's core activity is the production of electricity from hydropower, particularly through the operation of a power plant with a dam and turbines.

Energy Suppliers
View profile4.4(23)
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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.
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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