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

Energy & Environment

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IndustryEnergy & Environment
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Matching companies

9'016 companies found

solarmotion ag Logo

solarmotion ag 

St. Gallen · Since 2015

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.

Solar & Photovoltaics
View profile4.3(15)
SPC Solar AG Logo

SPC Solar AG 

Wängi · Since 2024

The core activity of SPC Solar AG is the planning, installation and marketing of photovoltaic systems and energy storage systems for private and business customers, with the aim of enabling customers to produce their own renewable energy and increase their independence from external power sources.

Solar & Photovoltaics
View profile4.5(15)
Stuber Spenglerei Lüftungs AG Logo

Stuber Spenglerei Lüftungs AG 

Teufenthal Ag · Since 2018

Stuber Spenglerei Lüftungs AG provides planning, fabrication, installation and maintenance of ventilation and air‑conditioning systems. The company also performs sheet‑metal (spenglerei) work including chimneys, flat‑roofing and lightning protection, and supplies photovoltaic systems, custom metal products, ductwork and filter/service contracts.

Sheet Metal WorkSolar & Photovoltaics
View profile4.4(15)
Swissgrid AG Logo

Swissgrid AG 

Aarau · Since 2005

The company Swissgrid is primarily responsible for the transmission of electrical energy in Switzerland. It operates the Swiss high-voltage grid and ensures the safe and reliable supply of electricity in Switzerland.

Energy Suppliers
View profile3.1(15)
TOP CANALISATION Sàrl Logo

TOP CANALISATION Sàrl 

Chêne-Bourg · Since 2022

TOP CANALISATION Sàrl is a provider of drain and sewer services offering cleaning, unblocking and inspection of wastewater, stormwater and clear-water pipes. Services listed on the website include emergency unblocking (24/7), sewer cleaning and hydro-jetting, descaling, maintenance and video camera inspections.

Waste Management Industry
View profile5(15)
Umwelt Brocki GmbH Logo

Umwelt Brocki GmbH 

Gwatt (Thun) · Since 2023

The core activity of Umwelt Brocki is the operation of a second-hand shop, where well-preserved, used goods such as everyday items, clothing, books, toys and much more are sold.

Sustainability Sector
View profile5(15)
Vetsch Gebäudehüllen AG Logo

Vetsch Gebäudehüllen AG 

Grabs · Since 1983

The core activity of Vetsch Gebäudehüllen is the planning, execution and maintenance of building envelopes, particularly in the areas of roofs, facades and energy. The company offers comprehensive solutions for building envelopes, including pitched roofs, flat roofs, facades, liquid plastics and solar systems.

Solar & Photovoltaics
View profile4.6(15)
R2 Immobilien AG Logo

R2 Immobilien AG 

Reichenburg · Since 2003

The core activity of Vogt Heizung Sanitär AG is the installation, planning, implementation and maintenance of heating, sanitary and solar systems, including the associated service work such as repairs and inspections.

Solar & Photovoltaics
View profile4.3(15)
Voutat SA Logo

Voutat SA 

Gland · Since 1986

The core activity of Voutat includes the planning, installation and maintenance of sanitary facilities, heating systems, heat pumps, swimming pools, solar panels, as well as the execution of repair and transformation work in these areas.

Plumbing & Building ServicesSolar & Photovoltaics
View profile4.3(15)
Willi+Landolt Elektro AG Logo

Willi+Landolt Elektro AG 

Zurich · Since 2021

The core activity of Willi+Landolt Elektro AG is the provision of electrical installation services, including planning, installation, maintenance and repair of electrical systems and installations. The company offers its services to meet various customer needs and has qualified personnel with relevant training and certifications, such as federally certified electrical installers and safety consultants.

Solar & 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.