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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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9'016 companies found

Kraftwerk Täschbach AG Logo

Kraftwerk Täschbach AG 

Täsch · Since 1996

The core activity of the company is the management and organization of the municipality of Täsch, including the provision of services, information and resources for citizens, such as education, social affairs, environment, safety, administration and finance.

Energy Suppliers
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Kraftwerk Trempel AG Logo

Kraftwerk Trempel AG 

Krummenau · Since 1993

Kraftwerk Trempel AG operates a hydropower plant and manages a former textile factory converted into a commercial and cultural centre. The plant has an installed capacity of 1,800 kW, produces about 8 million kWh annually using two Francis turbines, and feeds its electricity into the national grid.

Energy Suppliers
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Kraftwerk Urnäschtobel AG Logo

Kraftwerk Urnäschtobel AG 

Urnäsch · Since 1995

Kraftwerk Urnäschtobel AG operates a small hydropower plant that converts flowing water into renewable electricity. The facility has an installed capacity of more than 300 kW and typically generates about 1.7 million kWh per year; the catchment area is roughly 63 km², with an average turbine flow of 2.85 m³/s and a mandated residual flow of 240 L/s.

Energy Suppliers
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Krannich Solar AG Logo

Krannich Solar AG 

Spreitenbach · Since 2013

The core activity of Krannich Solar International is the distribution of solar products and solutions on a global scale, with an extensive network of websites and shops in various countries and regions, including Africa, Asia, Europe, Latin America and North America.

Solar & Photovoltaics
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Kraut + Quer GmbH Logo

Kraut + Quer GmbH 

Zurich · Since 2017

The company Kraut + Quer specializes in sustainable urban green interventions, particularly in the planning, implementation, and maintenance of gardens, green spaces, and habitat sculptures in urban areas. The core activity involves designing and implementing projects that aim to bring nature into the city and improve people's quality of life through green oases. This also includes conducting workshops, courses, and events that raise awareness about the importance of nature and the environment and encourage people to take action.

Sustainability Sector
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Krieg Haustechnik GmbH Logo

Krieg Haustechnik GmbH 

Wangen Sz · Since 2013

The core activity of Krieg Haustechnik GmbH is the planning, execution and maintenance of building technology systems, particularly in the areas of heating, plumbing and bathroom renovation. The company offers comprehensive solutions for new construction, renovation, renovation and modernization of building technology systems and has a wide range of services, including installation, service and maintenance.

Solar & Photovoltaics
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KRT Engineering & Consulting GmbH Logo

KRT Engineering & Consulting GmbH 

Magden · Since 2021

KRT Engineering & Consulting GmbH operates local electricity communities (LEG) and implements regional photovoltaic installations. The company coordinates production and local distribution of solar power, often using battery storage for supply security, issues billing based on smart‑meter data, and enables participation by both producers and consumers.

Technical Consulting & EngineeringSolar & Photovoltaics
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Krüsi Sicherheits- und Solartechnik Logo

Krüsi Sicherheits- und Solartechnik 

Embrach · Since 2002

The company's core activity is the installation and distribution of solar systems and related components such as photovoltaic modules, inverters and solar storage systems.

Solar & Photovoltaics
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Krüsi Umzüge & Transporte GmbH Logo

Krüsi Umzüge & Transporte GmbH 

Kollbrunn · Since 2017

The core activity of Krüsi is the execution of clearings, in particular of apartments and houses, as well as the transportation and disposal of furniture and other objects. This also includes special services such as room cleaning and the donation of unsold items to charitable organizations.

Waste Management Industry
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KS-net AG Logo

KS-net AG 

Baar · Since 1999

KS-net AG provides conception, consulting, planning, supervision and implementation services for projects that recover energy from waste and renewable resources. Its offering includes pyro-gasification and wood-gasifier systems, thermal sewage‑sludge treatment and syngas utilization, agricultural and industrial biogas plants, water and sediment remediation, membrane/RO water treatment, and application/system integration.

Waste Management Industry
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KTK Swiss Energy AG Logo

KTK Swiss Energy AG 

Vorderthal · Since 2023

The core activity of KTK Swiss Energy AG is the installation and financing of photovoltaic systems on the roofs of private individuals and companies, with the aim of promoting sustainable energy supply in Switzerland. The company finances the systems and offers roof owners the opportunity to benefit from rental income or discounted electricity.

Solar & Photovoltaics
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Küenzi & Co. AG Logo

Küenzi & Co. AG 

Münchenbuchsee · Since 1975

The core activity of Küenzi & Co AG is the planning and execution of building technology services, particularly in the areas of: sanitary installations, heating systems, plumbing work, and repair and maintenance services. The company also offers specialized services such as bathroom renovations, water connections, heating system construction, solar systems, pellet and wood heating systems, as well as rainwater utilization and water supply.

Sheet Metal WorkSolar & Photovoltaics
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Küffer AG Logo

Küffer AG 

Tafers · Since 1987

The core activity of Küffer AG is the disposal, recycling and reuse of waste and materials, including the provision of waste management services such as skip rental, transportation and demolition, as well as the sale of recycled materials and household plastics.

Waste Management Industry
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Kuhrerhof AG Logo

Kuhrerhof AG 

Chur · Since 2020

The core activity of Kuhrerhof AG is the agricultural production of dairy and egg products as well as vegetables through climate farming, with a focus on environmental friendliness, animal welfare and regionality.

Sustainability Sector
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Kunststoffsammelsack Schweiz GmbH Logo

Kunststoffsammelsack Schweiz GmbH 

Altdorf Ur · Since 2016

The company is engaged in the collection and processing of plastic waste, particularly packaging and other plastic products. It produces mixed plastic plates, which are then further processed into new, sustainable products such as plant boxes, collection boxes and other household items. The company aims to collect, prepare and convert plastic waste into new products, thereby promoting a circular economy.

Waste Management Industry
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kuntergrün KlG Logo

kuntergrün KlG 

Urswil · Since 2021

The company kuntergrün offers knowledge and services in the field of sustainable living and building. The core activities include: Creating and disseminating content (blog posts, courses, books, events, and consulting) on topics such as sustainable living, building, health, and environmental protection. Conducting workshops, lectures, and individual consulting on these topics. Offering collaborations and partnerships with other companies and organizations committed to sustainability. Managing a member area and sending newsletters with tips and information on sustainable living. The core activity of the company is education and consulting in the field of sustainability.

Sustainability Sector
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Kuoni STORAGE & RECYCLING GmbH Logo

Kuoni STORAGE & RECYCLING GmbH 

Urdorf · Since 2020

The core activity of Kuoni STORAGE & RECYCLING GmbH is the storage and disposal of goods of all kinds. Specifically, the company offers storage spaces for long-term and short-term storage, carries out clearances and disposals for private individuals and companies, and provides recycling services for various materials such as steel, plastic, IT equipment, and document destruction.

Waste Management IndustryMoving Companies
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KWB Planreal AG Logo

KWB Planreal AG 

Widnau · Since 1990

The core activity of KWB Planreal AG is the utilization of secondary raw materials, particularly the collection, processing and recycling of valuable materials such as waste glass, waste paper, waste wood, construction waste, ferrous and non-ferrous materials and other waste into the material cycle, with the aim of sustainable and environmentally friendly waste management and energy generation.

Waste Management Industry
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kwick SA Logo

kwick SA 

Locarno · Since 2023

The core activity of kwick energy is the sale of electricity to companies and private individuals in Switzerland. They offer various tariffs and models, including renewable energies, and enable customers to manage their energy contracts online.

Energy Suppliers
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kWIQly GmbH Logo

kWIQly GmbH 

Niederried B. Interlaken · Since 2008

The core activity of kWIQly is the development and provision of energy management software for companies with multiple locations. This software enables customers to analyze energy consumption and costs, identify and solve problems, and improve energy efficiency. The software offers features such as data analysis, prioritization of problems, filtering and correction of data, as well as the ability to visualize and track energy consumption and costs. The goal is to help companies reduce energy costs and increase their energy efficiency.

Sustainability Sector
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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.