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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

Inoveco Sagl Logo

Inoveco Sagl 

Giubiasco · Since 2020

The core activity of Inoveco Sagl is the planning, sale and installation of renewable energy systems, in particular: heat pumps, photovoltaic panels, energy storage batteries and electric vehicle charging columns. The company also offers consulting services for optimizing energy consumption and costs.

Energy SuppliersSolar & Photovoltaics
View profile3(2)
Invaio Sciences International GmbH Logo

Invaio Sciences International GmbH 

Basel · Since 2019

The core activity of Invaio Sciences is the development and provision of nature-positive solutions for agriculture, particularly in the area of plant health. The company focuses on the development of biological products and proprietary delivery platforms to improve the performance and delivery of plant health solutions and reduce the use of pesticides. Invaio Sciences' solutions aim to promote sustainable agriculture and protect the health of plants, humans, and the environment.

Sustainability Sector
View profile3(2)
i-watt Sàrl Logo

i-watt Sàrl 

Martigny · Since 2018

The core activity of i-watt Sàrl is the installation of photovoltaic panels (solar energy systems) for businesses and individuals, including associated services such as study and consulting, monitoring and maintenance, as well as administrative procedures.

Solar & Photovoltaics
View profile5(2)
JMZ Gebäudetechnik GmbH Logo

JMZ Gebäudetechnik GmbH 

Niedergösgen · Since 2017

The core activity of JMZ Gebäudetechnik GmbH is the planning, installation, maintenance and repair of sanitary, heating, ventilation and other building technology systems for private households, large companies and other customers. The company offers individual solutions and services to achieve an optimal indoor climate and high energy efficiency.

Building MaintenancePlumbing & Building ServicesSolar & Photovoltaics
View profile5(2)
Kalbermatter Alain Logo

Kalbermatter Alain 

Evionnaz · Since 2019

Kalbermatter Alain is a waste management and transport service that supplies containers and boxes and carries out collection and transport of scrap and recyclable materials. Services include containers from 1 m³ to 12 m³ and handling of ferrous and non-ferrous metals (e.g. iron, aluminium, copper), wood, plastics, paper/cardboard, glass, green waste and bulky or inert waste.

Waste Management Industry
View profile5(2)
Kama GmbH Logo

Kama GmbH 

Güttingen · Since 2015

The core activity of Kama GmbH is the planning, installation and sale of photovoltaic systems (PV systems) and related components such as solar panels, energy storage systems and inverters. The company also offers an online solar calculator, which allows customers to calculate the suitability of their roof for a solar system and determine the costs of such a system.

Solar & Photovoltaics
View profile5(2)
kanaltech solution GmbH Logo

kanaltech solution GmbH 

Solothurn · Since 2015

The core activity of kanaltech solution GmbH is the provision of services in the field of sewer and pipe rehabilitation, including: sewer and pipe cleaning, sewer and pipe rehabilitation, drain cleaning, sewer television, location and tightness testing. The company offers these services to solve problems with sewers and pipes and to restore their functionality.

Waste Management Industry
View profile5(2)
KARO Recycling GmbH Logo

KARO Recycling GmbH 

Busswil Tg · Since 2017

The core activity of the company KARO Recycling GmbH is recycling.

Waste Management IndustryMetal Industry
View profile5(2)
KASTELER ENGINEERING GMBH Logo

KASTELER ENGINEERING GMBH 

Wabern · Since 2019

The core activity of KASTELER ENGINEERING GmbH is the planning and coordination of electrical systems, particularly in the areas of electrical planning, lighting planning, photovoltaic planning and coordination. The company provides comprehensive concepts and decision-making bases for energy efficiency, comfort and economic viability in construction and project ventures.

Solar & Photovoltaics
View profile4.5(2)
Kenzenau Fisch AG Logo

Kenzenau Fisch AG 

Schweizersholz · Since 2021

The core activity of Kenzenau Fisch AG is fish farming, particularly the sustainable and quality-oriented production of Swiss fish.

Sustainability Sector
View profile5(2)
Kilowatt24 AG Logo

Kilowatt24 AG 

Amriswil · Since 2021

The core activity of GENNO (Kilowatt24 AG) is the development, manufacture and distribution of emergency power solutions, particularly generators and power units, as well as the provision of services such as maintenance, service and consulting in the field of emergency power supply.

Energy Suppliers
View profile5(2)
KMN Elektro-Ingenieurbüro AG Logo

KMN Elektro-Ingenieurbüro AG 

Winterthur · Since 1976

The core activity of KMN Elektro - Ingenieurbüro AG is electrical planning, particularly the planning of high-voltage systems for buildings of various uses, as well as the planning of low-voltage systems, photovoltaic systems, intrusion detection systems and HVAC systems.

Solar & Photovoltaics
View profile5(2)
Kompogas Bioriko AG Logo

Kompogas Bioriko AG 

Klingnau · Since 2007

The core activity of Kompogas Bioriko AG is the utilization of biogenic waste through a Kompogas plant to produce electricity and natural fertilizer. The company operates one of the largest Kompogas plants in Switzerland and supplies the region with climate-friendly electricity and fertilizer.

Waste Management Industry
View profile3(2)
Kraftwerk Gurtnellen AG Logo

Kraftwerk Gurtnellen AG 

Gurtnellen · Since 2015

Kraftwerk Gurtnellen AG operates a run-of-river hydroelectric power plant for electricity generation. The plant uses water from the Gornerbach, has an installed capacity of 10.2 MW and produces about 32 GWh per year; ownership is 70% energieUri and 30% Korporation Uri.

Energy Suppliers
View profile1(2)
KS smartTechnology GmbH Logo

KS smartTechnology GmbH 

Schongau · Since 2020

KS smartTechnology GmbH provides services in photovoltaics, EV charging stations, automation and electrical installations. The company designs, installs and maintains solar systems, charging infrastructure and smart automation solutions for residential and commercial clients.

Electrical Planning & InstallationSolar & Photovoltaics
View profile5(2)
Kurita Switzerland AG Logo

Kurita Switzerland AG 

Allschwil · Since 1976

The core activity of Kurita Europa is the development and provision of solutions for industrial water, paper and process treatment, with the aim of optimizing the efficiency of industrial plants and projects and reducing environmental impact. This includes the development and deployment of customized technologies and patented products that improve plant efficiency and extend the lifespan of plants, while reducing costly downtime.

Sustainability Sector
View profile5(2)
KW Fellitobel AG Logo

KW Fellitobel AG 

Gurtnellen · Since 2015

KW Fellitobel AG operates a run-of-river hydroelectric plant with an installed capacity of 10.2 MW and an annual generation of about 32 GWh. The plant features a pressure pipeline with a gross head of 588 m and published technical details on intake, pipeline length and output; shareholding is 70% energieUri and 30% Korporation Uri.

Energy Suppliers
View profile1(2)
KWP Energieplan AG Logo

KWP Energieplan AG 

Hochdorf · Since 1991

The core activity of KWP Energieplan AG is the planning and implementation of sustainable solutions in the field of heating, ventilation and air conditioning (HVAC) for buildings. The company offers individual overall concepts and innovative solutions for its customers, relying on long-standing experience and new technological developments.

Solar & Photovoltaics
View profile4.5(2)
Lebensturm GmbH Logo

Lebensturm GmbH 

Hildisrieden · Since 2023

The core activity of Lebensturm GmbH is the conception, realization and construction of so-called 'Lebenstürme', which serve as retreats for insects, hedgehogs and other animals. Additionally, the company also offers holiday accommodations and experiences on a farm, the Archehof, including a treehouse and the opportunity to plant sponsor trees.

Sustainability Sector
View profile5(2)
Légumes Perchés Sàrl Logo

Légumes Perchés Sàrl 

Crissier · Since 2020

The core activity of the company "Légumes Perchés" is urban farming, i.e. urban agriculture, including the conception, implementation and support of projects in the field of urban agriculture.

Sustainability Sector
View profile5(2)
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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.