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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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9'016 companies found

Kaden und Partner AG Logo

Kaden und Partner AG 

Frauenfeld · Since 1994

The core activities of Kaden + Partner AG include: 1. Ecology: Ecological consulting services for federal, cantonal, municipal, private companies and landowners, including herpetology and amphibians. 2. IT: Development of software, in particular web, mobile and GIS applications, as well as database and application development. 3. Aerial photography: Drone shots for landscape or object photography. The company thus offers interdisciplinary services that encompass both ecological and technical aspects.

Sustainability SectorSoftware Development
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KAGA DEPONIEN AG Logo

KAGA DEPONIEN AG 

Jaberg · Since 2004

KAGA DEPONIEN AG is a supply and waste-management company for gravel, excavation and inert materials. Its services include production and sale of aggregate and recycling products, acceptance and disposal of materials at an inert-material landfill (Type B) and waste-disposal consulting. The company also provides site maintenance and recultivation services.

Waste Management Industry
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KÄLIN ELEKTROTECHNIK Logo

KÄLIN ELEKTROTECHNIK 

Einsiedeln · Since 2002

The core activity of Kälin Elektrotechnik is the provision of services in the field of electrical engineering, particularly in the following areas: installation, maintenance and repair of safety technology, including fire alarm and gas warning systems; installation and maintenance of photovoltaic systems; installation and configuration of SmartHome systems; electrical installations for new and renovation projects; and device testing and maintenance. The company offers these services to private and business customers in Switzerland, distinguished by fast and uncomplicated processing.

Solar & Photovoltaics
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Kälin Solartechnik GmbH Logo

Kälin Solartechnik GmbH 

Ermatingen · Since 2023

The core activity of Kälin Solartechnik GmbH is the planning, implementation and marketing of photovoltaic systems (PV systems) as well as services in the field of renewable energies, particularly in contracting and energy production. The company also offers products such as metal tiles, blind modules and energy dashboards, and operates a platform for visualizing the current power situation in Switzerland.

Solar & Photovoltaics
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KaMa Top Clean Matter Logo

KaMa Top Clean Matter 

Adligenswil · Since 2019

The core activity of KaMa Top Clean Matter is the execution of clearings, removals, final cleanings and disposals, particularly in the field of apartment dissolution, with a focus on environmentally friendly disposal and thorough final cleaning.

Waste Management Industry
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Kamber Heizungen Sanitär GmbH Logo

Kamber Heizungen Sanitär GmbH 

Deitingen · Since 2024

The core activity of Kamber Haustechnik encompasses the planning, installation, repair and renovation of building technology systems, including: heating systems (all systems, such as oil heating, gas heating, pellet heating, etc.); sanitary technology (sanitary appliances, sanitary facilities, bathroom conversions and renovations); roofing and facade work; solar systems (hot water through solar energy); and water pipes (water supply and wastewater disposal). The company also offers consulting, planning and coordination services for complete renovations and refurbishments.

Sheet Metal WorkSolar & Photovoltaics
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Kamber SE Logo

Kamber SE 

Volketswil · Since 2015

The core activity of Kamber SE is consulting, prevention and education in the field of sustainable mobility, particularly in mobility management, fleet management and the efficient networking of modes of transport. The company supports customers in designing, organizing and managing their mobility, with the aim of reducing accidents, increasing efficiency and achieving sustainable success.

Sustainability Sector
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Kambium Energie GmbH Logo

Kambium Energie GmbH 

Bassersdorf · Since 2023

The core activity of Kambium Energie GmbH is the distribution and installation of photovoltaic systems, including planning, installation and consulting in the field of sustainable energy generation and savings.

Solar & Photovoltaics
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Kampagnerei Trede Logo

Kampagnerei Trede 

Bern · Since 2017

The company "Büro Albatros" is a political consulting and project management firm specializing in environmental and climate policy. The core activity of the company is to develop and implement political campaigns and projects aimed at promoting sustainability and climate protection.

Sustainability Sector
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Kanadevia Inova AG Logo

Kanadevia Inova AG 

Zurich · Since 1995

Kanadevia Inova AG develops and delivers technologies and plants for waste treatment and the production of renewable gases. It provides engineering, construction, operations, maintenance and digital plant-management solutions for waste-to-energy and biogas systems and operates internationally.

Civil Engineering FirmsWaste Management Industry
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Kanal Expert GmbH Logo

Kanal Expert GmbH 

Allschwil · Since 2022

The core activity of Kanal Expert GmbH is the execution of sewer and pipe cleaning, inspection and renovation. This also includes emergency and maintenance services for pipes and sewers.

Waste Management Industry
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Kanalservice Surselva AG Logo

Kanalservice Surselva AG 

Schluein · Since 2020

The core activity of Kanalservice Surselva AG is the provision of services in the field of canal services, particularly: * Canal cleaning * Canal television (inspection of canals using cameras) * Canal renovation (renovation and maintenance of canals) * Tightness testing (testing the tightness of canals) * Surface cleaning (cleaning of surfaces, especially in the Surselva region) The company offers these services as a regional partner for the Surselva region and has a locally knowledgeable and professionally trained team.

Waste Management Industry
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Kanal Top AG Logo

Kanal Top AG 

Zuzwil Sg · Since 2022

The core activity of Kanal Top AG is sewer cleaning and maintenance, including: cleaning and drainage of pipes, ducts and shafts; suction and flushing work in apartments, houses and industrial plants; street and square cleaning; emptying of shafts, slot systems and separators; sewer TV inspections; milling work for root growth and lime deposits; disposal of wastewater and sludge at regional reception facilities. The company also offers consulting and emergency services and has specialized vehicles for the various tasks.

Waste Management Industry
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Kantensprung Stiftung Logo

Kantensprung Stiftung 

Basel · Since 2014

The core activity of the Kantensprung Foundation is to promote and support ideas and projects that focus on the preservation, redevelopment and expansion of public spaces, as well as environmentally and socially sustainable urban development, particularly in the area of innovative living and working forms.

Sustainability Sector
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KAPIMEX GmbH Logo

KAPIMEX GmbH 

Brüttisellen · Since 1998

KAPIMEX GmbH is a general contractor for energy projects. The website provides contact information and a brief description of the company's business activities.

Construction & Project ManagementSolar & Photovoltaics
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KariCello AG Logo

KariCello AG 

Zernez · Since 2014

The core activity of KariCello GmbH is the acceptance, sorting and disposal of demolition materials such as asphalt, concrete and mixed demolition waste, as well as the distribution of road construction materials such as gravel and crushed stone 0/45.

Waste Management Industry
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Karl Näf Stiftung Logo

Karl Näf Stiftung 

Glarus · Since 1982

The core activity of the Karl Näf Foundation consists of promoting three main areas: 1. **Sustainable Energy Generation**: The foundation supports the development of environmentally friendly energy generation methods, particularly geothermal energy generation in Switzerland. 2. **Plant Breeding**: The foundation promotes the recognition of outstanding breeding achievements in the field of advanced vegetable cultivation and supports the development of plant breeding that serves the Swiss general public. 3. **Culture**: The foundation supports cultural purposes, particularly the preservation of art objects, historical and archaeological cultural assets in Eastern Switzerland, as well as the support of a local museum in Goldach.

NGOs & NPOsMuseumsSustainability Sector
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Karl Zünd Stiftung Logo

Karl Zünd Stiftung 

Altstätten Sg · Since 2015

Karl Zünd Stiftung supports projects in social, cultural and environmental fields, focusing on initiatives that deliver sustainable benefits beyond the funding period. The foundation funds initiatives in Nepal, India, ASEAN countries, selected African countries south of the equator and projects in the St. Gallen Rhine Valley, applying selection criteria such as local anchoring, professional competence, networking and ecological investment standards.

NGOs & NPOsSustainability Sector
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Kaskad-E GmbH Logo

Kaskad-E GmbH 

Basel · Since 2011

The core activity of Kaskad-E GmbH is the sustainable use of energy and material flows through the development and implementation of solutions in the areas of energy systems, pyrolysis technology and biomass management. This includes in particular: the planning and consulting of energy systems, including the optimization of energy and material flows; the development and manufacture of small-scale pyrolysis plants for the production of biochar; the utilization of biomass, especially green waste, through energetic and material optimization; the development of solutions for the use of waste heat and residual materials; and collaboration with other companies and institutions in the implementation of projects.

Technical Consulting & EngineeringSustainability Sector
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Kasontor AG Logo

Kasontor AG 

Port · Since 2013

Kasontor AG is a system supplier for comprehensive solutions in the field of renewable energies, particularly for wood-fired heating systems and solar thermal energy. The company's core activities include planning, execution, monitoring, commissioning and maintenance of heating systems, including log wood, wood chip and pellet heating systems as well as solar thermal systems.

Energy SuppliersSolar & 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.