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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

InnoRecycling AG Logo

InnoRecycling AG 

Winterthur · Since 2021

InnoRecycling AG serves as a central contact for businesses for the acceptance, inspection and brokerage of various plastic wastes and is involved in the "Bring Plastic Back" (Sammelsack) system for collecting household plastics.

Sustainability Sector
View profile4(4)
Jean Egloff AG Logo

Jean Egloff AG 

Bauma · Since 1988

The core activity of Jean Egloff AG is the planning, implementation and maintenance of building technology systems, particularly in the areas of plumbing, heating, ventilation and solar energy. The company offers comprehensive services, ranging from the installation and maintenance of heating and plumbing systems to the planning and implementation of solar systems, as well as the execution of blacksmithing and agricultural machinery work.

Solar & Photovoltaics
View profile4(4)
J. Fretz GmbH, Spenglerei/Bedachungen/Solaranlagen Logo

J. Fretz GmbH, Spenglerei/Bedachungen/Solaranlagen 

Klosters Dorf · Since 2016

The core activity of J. Fretz GmbH is the execution of roofing work, particularly in the areas of: copper roofing, roof renovations, service work, photovoltaic work, slate roofing, and snow removal. The company thus offers a wide range of services in the field of roof and building maintenance.

RoofingSheet Metal WorkSolar & Photovoltaics
View profile5(4)
JSK Marketing GmbH Logo

JSK Marketing GmbH 

Laupersdorf · Since 2020

The core activity of JSK Marketing GmbH is the development, manufacture and distribution of products for health, well-being and sustainability, particularly in the areas of air purification, floor cleaning and sleep comfort. The company offers a wide range of products, including air purifiers, vacuum cleaners, floor cleaning machines and accessories, positioning itself as an expert in healthy living conditions.

Sustainability Sector
View profile4.3(4)
Jud Haustechnik Sanitär Lüftung Solar Logo

Jud Haustechnik Sanitär Lüftung Solar 

Amden · Since 2021

The core activity of Jud Haustechnik is the execution and planning of sanitary work, solar and ventilation services in the areas of new construction, renovation as well as service and repair work.

Solar & Photovoltaics
View profile5(4)
Junod Wasser + Wärme AG Logo

Junod Wasser + Wärme AG 

Rossrüti · Since 2002

The core activity of Junod Wasser + Wärme AG is the planning, consulting and installation of solar systems, heating systems and sanitary facilities, including energy consulting and planning.

Solar & Photovoltaics
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KANALPOWER GmbH Logo

KANALPOWER GmbH 

Zurich · Since 2018

The core activity of Kanalpower GmbH is the provision of services in the field of drainage and ventilation technology, particularly in the Zurich region. This includes: sewer cleaning and inspection, sewer rehabilitation and investigation with TV recordings, pipe rehabilitation and cleaning, and a 24-hour emergency service for wastewater and ventilation systems. The company offers a complete service around wastewater systems, including the analysis and rehabilitation of damage, as well as the creation of offers and consulting.

Waste Management Industry
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KANX Sàrl Logo

KANX Sàrl 

Geneva · Since 2015

The core activity of KANX is the planning, implementation and maintenance of photovoltaic systems for private and commercial customers. This includes the installation of solar panels on roofs, the construction of autonomous solar systems for remote locations, the selection and installation of storage batteries, as well as the planning and implementation of solutions for the storage and use of renewable energy, such as powering buildings with solar power during power outages or charging electric vehicles.

Solar & Photovoltaics
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Kreutzinger & Stahel AG Logo

Kreutzinger & Stahel AG 

Mönchaltorf · Since 1987

The core activity of Kreutzinger & Stahel AG is water technology and decalcification, particularly in water treatment and cleaning of water-carrying systems. This includes services such as: decalcification of boilers, pipes and plate heat exchangers, dosing systems and water softening systems, corrosion protection and sacrificial anode systems, water analysis and flushing, and maintenance and servicing of systems. The company also offers products such as Judo products and cooling and heating water systems.

Water SupplyChemical Industry
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KW GmbH Kurt Windlin Logo

KW GmbH Kurt Windlin 

Giswil · Since 2008

The core activity of KW GmbH Kurt Windlin is the planning, consulting and implementation of solutions for heating systems, sanitary facilities and solar systems. Specifically, this includes the installation and maintenance of various types of heating systems (air/water heat pumps, ground source heat pumps, groundwater heat pumps, log wood heating systems), sanitary technology (water and pipe construction) and solar systems (flat collectors, vacuum tube collectors, BackBox drainage systems).

Solar & Photovoltaics
View profile4(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.
Per page
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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.