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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

EKZ Eltop AG Logo

EKZ Eltop AG 

Fahrweid · Since 2018

The company's core activity encompasses providing services and solutions in the areas of: ICT services (information and communication technology), lighting solutions, e-mobility, and solar systems. Thus, the company offers a wide range of technical services and solutions focusing on information technology, energy efficiency, and sustainable mobility.

Solar & Photovoltaics
View profile3.5(14)
Elektro Märk AG Logo

Elektro Märk AG 

Lucerne · Since 1989

The core activity of Elektro Märk AG is the provision of services in the field of electrical engineering, including: electrical installations, building automation, telematics, engineering services, photovoltaics, lighting and lamp technology, e-mobility, energy management, and monitoring and electrical controls. The company also offers a 24-hour service and is involved in the restoration of electrical antiques and modern electrical devices.

Solar & Photovoltaics
View profile4.8(14)
Energie Oberkirch AG Logo

Energie Oberkirch AG 

Oberkirch Lu · Since 2013

The core activity of the company is the management and organization of the municipality of Oberkirch, including the provision of services such as tax administration, building administration, social services, financial administration and other municipal tasks.

Energy Suppliers
View profile3.6(14)
Ezero Sagl Logo

Ezero Sagl 

Mezzovico · Since 2021

The core activity of Ezero Sagl consists of planning, installing and maintaining: 1. Photovoltaic systems for private and commercial customers 2. Electric vehicle charging stations, both for private and public use. The company also offers complementary services such as energy consulting, financing support, incentive applications and maintenance of systems.

Solar & Photovoltaics
View profile4.9(14)
F. Hubmann GmbH Logo

F. Hubmann GmbH 

Kölliken · Since 2020

The core activity of F. Hubmann GmbH encompasses planning, consulting and execution of work in the field of building envelopes, specifically: pitched roof work (new construction, renovation, conversion), flat roof work (sealing, connections and terminations), façade construction (consulting, planning, installation and maintenance), sheet metal work (manufacturing of sheet metal parts such as gutters, downspouts, chimney cladding) and solar and photovoltaic systems (consulting, planning and installation). The company thus offers comprehensive services in the field of building envelopes and renewable energies.

Sheet Metal WorkSolar & Photovoltaics
View profile4.4(14)
Fitschi Transporte + Recycling AG Logo

Fitschi Transporte + Recycling AG 

Saas Im Prättigau · Since 1990

The core activity of Fitschi Transporte + Recycling AG is the provision of services in the field of waste disposal and transportation, particularly of municipal and industrial waste, as well as logistics and material management. This specifically includes: waste and goods transportation, skip rental services, disposal of municipal and industrial waste, operation of recycling centers, winter maintenance services, and logistics and vehicle management. The company thus offers a wide range of services in the field of waste disposal and transportation.

Waste Management IndustryLogistics & Transport Companies
View profile4.2(14)
Hans Roth AG Logo

Hans Roth AG 

Klingnau · Since 1965

The core business of Hans Roth AG encompasses the areas of sanitary technology, heating technology, water supply, solar/photovoltaics, industry and crane work. The company offers services such as planning, installation, maintenance and repair of sanitary facilities, heating systems, water supply systems and photovoltaic systems. Additionally, it provides emergency services and on-call services.

Solar & Photovoltaics
View profile4.4(14)
Hans Wittenwiler AG Logo

Hans Wittenwiler AG 

Bronschhofen · Since 1995

The core activity of Hans Wittenwiler AG is the planning, installation and maintenance of heating systems, with a particular focus on renewable energies such as wood-fired heating, heat pumps and solar systems. The company also offers a 24/7 emergency service and advises customers on the selection and implementation of heating solutions.

Solar & Photovoltaics
View profile4.6(14)
Heizung-Sanitär R. Müller GmbH Logo

Heizung-Sanitär R. Müller GmbH 

Holziken · Since 2008

The core activity of Heizung-Sanitär R. Müller GmbH is the planning, execution and maintenance of building technology systems, particularly in the areas of heating, sanitation, air conditioning, ventilation and solar systems. This also includes emergency services, repairs and renovations. The company also offers consulting and conception services for the optimal equipment of buildings with building technology systems.

Solar & Photovoltaics
View profile4.8(14)
IngEne SA Logo

IngEne SA 

Cadenazzo · Since 2013

IngEne SA is a specialist in renewable energies, particularly in the planning, installation and maintenance of photovoltaic systems, as well as the installation of charging stations for electric vehicles. They also offer financing solutions and consulting services to their customers.

Solar & Photovoltaics
View profile5(14)
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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.