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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

Luce Elektro AG Logo

Luce Elektro AG 

Altendorf · Since 2004

The core activity of LUCE Elektro AG is the planning and execution of electrical installations, particularly in the areas of garden lighting, home electrical systems, photovoltaics and charging stations. The company offers exclusive, customer-specific electrical installations that meet the highest standards and works closely with customers to understand and implement their individual requirements.

Solar & Photovoltaics
View profile3.4(5)
LWS Lützelschwab Wärmeservice GmbH Logo

LWS Lützelschwab Wärmeservice GmbH 

Basel · Since 2024

The company offers holistic solutions for sustainable energy supply, particularly in the areas of heating and climate protection. The core activities include: planning, installation and maintenance of sustainable heating systems such as heat pumps, wood chip and pellet heating systems; implementation of district heating connections; conversion of fossil fuel heating systems to environmentally friendly systems; consulting and planning of photovoltaic systems; and service and maintenance of heating systems and sanitary installations. The company focuses on providing sustainable and environmentally friendly solutions for climate protection and energy supply for private households and businesses.

Sustainability Sector
View profile4.6(5)
Marc Germann AG Logo

Marc Germann AG 

Adelboden · Since 2010

The core activity of Germann Sanitär is the planning, execution and support of sanitary facilities, heating systems and solar systems, including plumbing work, as well as the renovation and refurbishment of sanitary facilities and heating systems.

Sheet Metal WorkSolar & Photovoltaics
View profile5(5)
memo energie ag Logo

memo energie ag 

Unterseen · Since 1992

The core activity of memo energie ag is the provision of services in the field of building technology, particularly in the areas of electrical installations, sanitary installations and heating installations. The company thus offers a comprehensive range of services for the installation, maintenance and repair of electrical, sanitary and heating systems.

Electrical Planning & InstallationPlumbing & Building ServicesSolar & Photovoltaics
View profile5(5)
Morelisse Elektro AG Logo

Morelisse Elektro AG 

Trimmis · Since 1981

The core activity of Morelisse Elektro AG is the provision of electrical services, including electrical installations, as well as the sale of electrical materials and household appliances.

Solar & Photovoltaics
View profile4.8(5)
Muldentransporte Oberwallis AG Logo

Muldentransporte Oberwallis AG 

Gamsen · Since 2021

The core activity of Muldentransporte Oberwallis is the disposal and recycling of waste, particularly through the transportation and disposal of materials such as construction waste, bulky waste, scrap metal and combustible waste. To this end, the company offers skips in various sizes that are placed at customers' premises and later collected. Additionally, the company provides house clearances and the disposal of hazardous waste.

Waste Management Industry
View profile5(5)
Müller Haustechnik GmbH Logo

Müller Haustechnik GmbH 

Adelboden · Since 1996

The company's core activity is the installation, maintenance and repair of heating, ventilation and plumbing systems, including emergency and service work.

Solar & Photovoltaics
View profile4.6(5)
Niederberger Elektro + Multimedia AG Logo

Niederberger Elektro + Multimedia AG 

Engelberg · Since 2001

The core activity of Niederberger Elektro + Multimedia GmbH encompasses the planning, installation, and maintenance of various electrical systems, including: Electrical installations (safe and reliable installations for trouble-free operation), Photovoltaic systems (installation and maintenance of solar energy systems), Smart Home solutions (building automation for energy-efficient, secure, and comfortable living), E-mobility (installation of charging stations for electric vehicles), and Multimedia solutions (installation of audio and video systems, network installations, etc.). The company also offers periodic inspections and maintenance of electrical installations and is available to its customers in case of emergencies.

Technical Consulting & EngineeringElectrical Planning & InstallationSolar & Photovoltaics
View profile4.6(5)
Oikos - Consulenza e ingegneria ambientale Sagl Logo

Oikos - Consulenza e ingegneria ambientale Sagl 

Bellinzona · Since 2006

The core activity of Oikos Consulenza e ingegneria ambientale is to provide specialized and innovative solutions for environmental design, particularly in the field of nature conservation and biodiversity. The company offers consulting services in the fields of environmental engineering and nature conservation, and has a team of biologists and environmental engineers who are active in various professional associations.

Sustainability Sector
View profile5(5)
Olivier Joye Sàrl Logo

Olivier Joye Sàrl 

Cugy Fr · Since 1999

The company's core activity is the installation, maintenance and repair of heating systems, burners, pumps for heat generation and solar-powered energy generation systems. The company also offers consulting services for the optimization of heating systems and the use of renewable energies.

Solar & Photovoltaics
View profile5(5)
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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.