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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

Katana Digital International SA Logo

Katana Digital International SA 

Geneva · Since 2019

The core activity of Katana Digital is the secure destruction of confidential data and media, including the physical destruction of IT media at the end of their life cycle (on-site shredding and sale of high-security shredders) as well as the erasure of digital data.

Waste Management Industry
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Kathrin & Ueli Roth AG Logo

Kathrin & Ueli Roth AG 

Ins · Since 2015

The core activity of Kathrin & Ueli Roth AG is energy consulting and planning, particularly in the field of photovoltaics and energy management, as well as the installation and rental of solar systems.

Building MaintenanceSolar & Photovoltaics
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KAWE AG Logo

KAWE AG 

Untersiggenthal · Since 2011

The company offers services and products in the development and manufacturing of complex special systems and components for various industrial sectors, including defense and aerospace technology, medical technology, food technology, energy technology, rail technology, electrical engineering, security and building technology. The core activities include: engineering and design of special systems and components, special machine and plant construction, toolmaking and maintenance, mechanics and component manufacturing, sheet metal processing, welding and joining technology, electrical engineering, machining, quality assurance, and the production of storage systems, testing systems and special tools. The company offers a 'one-stop-shop solution' and develops and builds systems and components according to the requirements and specifications of its customers.

Energy Suppliers
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Keel Holzhackservice Wilen Logo

Keel Holzhackservice Wilen 

Wilen B. Neunforn · Since 2011

The core activity of Keel Holzhackservice is the professional production of wood chips, shredding services, specialized wood cutting and the felling of trees and shrubs.

Waste Management Industry
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Keiser & Heini AG Logo

Keiser & Heini AG 

Hünenberg · Since 2008

Keiser & Heini AG provides consulting, planning, installation and service for heating systems, solar thermal installations and heat pumps. The company installs solar thermal systems, integrates solar support for heating systems and is an official competence partner of Heliotherm heat pumps.

Energy SuppliersSolar & Photovoltaics
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Keller Kehricht-Abfuhren GmbH Logo

Keller Kehricht-Abfuhren GmbH 

Thayngen · Since 2000

The core activity of Keller Kehricht-Abfuhren GmbH is the professional collection and disposal of all waste materials arising from municipalities and commercial enterprises.

Waste Management Industry
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KEMARO AG Logo

KEMARO AG 

Eschlikon Tg · Since 2016

The company Kemaro develops and distributes autonomous industrial cleaning robots that offer a water- and chemical-free cleaning solution. The company's core activity lies in the development and distribution of robotic solutions for industrial cleaning, with a focus on precision, reliability and performance.

Sustainability Sector
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kenova AG Logo

kenova AG 

Zuchwil · Since 1974

The company's core activity is the disposal, treatment or utilization of combustible waste and the resulting residues, in particular through waste-to-energy recovery and energy generation.

Waste Management Industry
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KGW Energie AG Logo

KGW Energie AG 

Wikon · Since 2022

The core activity of KGW Energie AG is the generation and distribution of district heating. The company operates a heat network and provides tariff sheets, technical connection regulations and information for interested parties.

Energy Suppliers
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KIBAG Entsorgungstechnik AG Logo

KIBAG Entsorgungstechnik AG 

Bassersdorf · Since 2006

The core activity of KIBAG Entsorgungstechnik AG is the development, manufacture and marketing of solutions for the disposal and recycling of waste, particularly through the compaction and shredding of waste. The company offers a wide range of products and systems, including press containers, baling presses, wood compactors, shredders and other recycling machines, to support companies in the environmentally friendly disposal and recycling of waste.

Waste Management Industry
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Kies AG Butzen Logo

Kies AG Butzen 

Amsteg · Since 1992

The core activity of Schelbert AG is civil engineering and road construction, as well as the operation of its own landfill sites in the canton of Schwyz. The core activity of Kies AG Butzen is environmentally friendly gravel extraction, recycling of construction waste and the disposal of excavated materials.

Waste Management Industry
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KREATIV Solar SCHWEIZ GmbH Logo

KREATIV Solar SCHWEIZ GmbH 

Wollerau · Since 2013

KREATIV Solar SCHWEIZ GmbH advises entrepreneurs, family offices, investors and manufacturers on preparing, evaluating and structuring market entry and expansion in energy production. Services include market analysis, investment and partnership structuring, assessment of manufacturers and business models, and support with governance and capital allocation.

Solar & Photovoltaics
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Kisters Schweiz GmbH Logo

Kisters Schweiz GmbH 

Olten · Since 2018

KISTERS is a provider of solutions and services in the fields of environment, energy, water, and occupational safety. The core activities include: environmental consulting and management, development and distribution of software solutions for managing environmental data, hazardous substances, and hazardous goods transport, provision of 2D and 3D printers, scanners, and viewers, solutions for the energy market, including cloud solutions, smart grid, and control technology, provision of environmental sensors and measuring devices, data management and analysis for the environmental and energy sector, and consulting and support for the digitalization of processes and systems. Overall, the core activity of KISTERS can be described as 'Environmental and Energy Management Solutions'.

Sustainability Sector
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KIT Wassertechnik AG Logo

KIT Wassertechnik AG 

Inkwil · Since 1977

The core activity of KIT Wassertechnik AG is the development and implementation of ecological water use systems, including rainwater and spring water utilization, retention, water treatment, water recycling and irrigation, for private, industrial and public facilities.

Sustainability Sector
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klartext umwelt GmbH Logo

klartext umwelt GmbH 

Hünibach · Since 2017

The core activity of the company "klartext-umwelt" is the creation of texts, concepts and consulting services in the field of environmental protection, nature conservation and sustainability. The company offers services such as text creation, editing, proofreading, ghostwriting, concept development, moderation of workshops and events, as well as consulting for the creation of environmental reports and assessments. Additionally, the company supports the implementation of environmental measures and offers training to promote writing quality in companies.

Sustainability Sector
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Kleinwasserkraftwerk Schwaderhof GmbH Logo

Kleinwasserkraftwerk Schwaderhof GmbH 

Cham · Since 2007

Energy Suppliers
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Klimastiftung Schweiz Logo

Klimastiftung Schweiz 

Zurich · Since 2008

Klimastiftung Schweiz supports Swiss and Liechtenstein SMEs in developing and scaling innovative, climate-friendly products. The foundation awards funding, evaluates grant applications and helps projects reach the market through seed financing in cooperation with partner companies.

Sustainability Sector
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Klimatec GmbH Logo

Klimatec GmbH 

Basel · Since 2006

The core activity of Klimatec GmbH is the sale and distribution of climate technology products and systems, particularly air conditioning units, heat pumps, solar systems and related accessories. The company also offers services such as consulting, installation and repair of heating and cooling systems.

Solar & Photovoltaics
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Knallgrün GmbH Logo

Knallgrün GmbH 

Kriens · Since 2021

The company provides sustainability consulting services to the event and hotel industry. The core activity involves supporting companies in developing and implementing sustainability strategies to strengthen their social and environmental responsibility and improve their competitiveness. This includes analyzing the current situation, developing individual strategies, implementing measures, and communicating sustainability efforts to customers and employees.

Sustainability Sector
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Kobel Entsorgungen und Recycling AG Logo

Kobel Entsorgungen und Recycling AG 

Thal · Since 2013

The core activity of Kobel Entsorgungen und Recycling AG is the disposal and recycling of waste.

Waste Management Industry
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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.