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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,089 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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9'017 companies found

Elektro23 GmbH Logo

Elektro23 GmbH 

Neuhausen Am Rheinfall · Since 2023

Elektro23 GmbH provides electrical installation services including smart home systems, telematics, photovoltaic systems and electromobility, and offers planning, consulting, service and maintenance.

Solar & Photovoltaics
View profile5(3)
Elektro Kleiner AG Logo

Elektro Kleiner AG 

Rebstein · Since 2002

The company Elektro Kleiner AG offers a wide range of services in the field of electrical engineering. The core activities include: electrical installations, building technology and automation, telephone systems and UCC solutions, security and alarm systems, including camera and alarm systems, energy and sustainability solutions, such as LED lighting concepts, photovoltaic systems and electric vehicle charging stations, service and maintenance of electrical systems, including household appliances and control systems, and planning and project management of electrical projects. The company thus offers a comprehensive range of services in the field of electrical engineering, from planning and installation to maintenance and support of electrical systems.

Solar & Photovoltaics
View profile5(3)
Elektro Laube AG Logo

Elektro Laube AG 

Lengnau Ag · Since 2010

Elektro Laube AG is an electrical installation company offering project planning, electrical installations for residential, industrial and commercial properties, communication systems, photovoltaic installations, e-mobility charging solutions and maintenance services.

Solar & Photovoltaics
View profile5(3)
Elektro Ottinger AG Logo

Elektro Ottinger AG 

Goldau · Since 2013

The core activity of Elektro Ottinger AG includes the planning, installation and maintenance of electrical systems, particularly in the field of renewable energies, specifically photovoltaic systems. This includes work on roofs, the installation of inverters, the adaptation of distribution and the commissioning of systems. In addition, the company also offers services in the field of household, monitoring and entertainment devices.

Solar & Photovoltaics
View profile5(3)
Elektro Team Eich AG Logo

Elektro Team Eich AG 

Eich · Since 2011

The core activity of Elektro Team Eich AG is the planning, installation and maintenance of electrical and solar systems, including: electrical installations, communication systems, electrical devices and lighting, solar systems and installations, repairs and service, electrical inspections and acceptance tests. The company thus offers comprehensive services in the field of electrical engineering and solar energy.

Solar & Photovoltaics
View profile5(3)
ENCO Energie-Consulting AG Logo

ENCO Energie-Consulting AG 

Basel · Since 1997

ENCO Energie-Consulting AG is a consultancy that supports public authorities and organisations in developing and implementing energy and climate policy. Its services include municipal energy management, renewable energy planning, climate change adaptation measures, national and international cooperation, association management and participatory/smart-city concepts.

Technical Consulting & EngineeringSustainability Sector
View profile5(3)
energia alpina Logo

energia alpina 

Sedrun · Since 2004

The core activity of energia alpina includes the generation, distribution and marketing of energy, in particular electricity, as well as the provision of services in the field of electrical installation, electrical planning and automation. The company also operates photovoltaic systems and offers e-charging stations. Additionally, it is active in network management and liberalization.

Energy Suppliers
View profile4.7(3)
Energie Hunzenschwil AG (ENH) Logo

Energie Hunzenschwil AG (ENH) 

Hunzenschwil · Since 2012

The company's core activity is the supply of electricity to customers as well as the billing and management of electricity tariffs for various customer groups, including private customers, large customers and public utilities.

Energy Suppliers
View profile4.3(3)
Energie Münchwilen AG Logo

Energie Münchwilen AG 

Münchwilen Tg · Since 2013

The core activity of Energie Münchwilen AG is the generation and distribution of heat energy through the operation of district heating systems, particularly in the regions of Münchwilen, Murgtal and Eschlikon. The company operates heating plants fired with wet wood chips and has a network of heat distribution systems to deliver the generated heat to customers.

Energy Suppliers
View profile2.3(3)
Enerhaus Engineering AG Logo

Enerhaus Engineering AG 

Zuchwil · Since 2011

The core activity of EnerHaus Engineering GmbH is planning and consulting in the field of building technology and energy, particularly in the areas of HLKS planning (heating, ventilation, air conditioning, sanitation) and energy concepts. The company also offers services such as energy certificates and training for building technology planners.

Technical Consulting & EngineeringSustainability Sector
View profile5(3)
Entrag Entsorgungs- und Transport AG Logo

Entrag Entsorgungs- und Transport AG 

Grindelwald · Since 1979

The core activity of ENTRAG AG is environmentally friendly waste disposal and material processing, including: waste disposal, particularly of mixed construction waste, old wood and old metals; material separation and processing; transportation of waste and materials; waste collection and street cleaning; snow removal; demolition and clearance; crane services and special transports. The company thus offers a comprehensive range of services in the field of waste disposal and material processing.

Waste Management Industry
View profile4.3(3)
Entreprise du Gaz S.A. Porrentruy, succursale de Delémont Logo

Entreprise du Gaz S.A. Porrentruy, succursale de Delémont 

Delémont · Since 2016

Entreprise du Gaz S.A. Porrentruy, succursale de Delémont is a branch of Entreprise du Gaz SA that provides heating systems, sanitary installations and water distribution services. The branch also offers after-sales service, maintenance and a retail shop.

Water Supply
View profile2.7(3)
Entreprise du Gaz S.A. Porrentruy, succursale de Moutier Logo

Entreprise du Gaz S.A. Porrentruy, succursale de Moutier 

Moutier · Since 2021

Entreprise du Gaz S.A. Porrentruy, succursale de Moutier provides services in heating, sanitary installations, potable water distribution and after-sales service. The company carries out planning, installation, repair and maintenance of heating and sanitary systems and operates an on‑call emergency service.

Water Supply
View profile2.7(3)
Eric Gerzner Sàrl Logo

Eric Gerzner Sàrl 

Vétroz · Since 2016

Eric Gerzner Sàrl specialises in the recovery of ferrous and non-ferrous metals and in waste management. The company accepts materials such as copper, aluminium, stainless steel and brass, supplies bins and containers, and provides transport (multilift, crane truck, trailers) and disposal services for wood, cardboard, paper and bulky waste.

Waste Management Industry
View profile2.3(3)
Eric Gerzner Récupération Logo

Eric Gerzner Récupération 

Vétroz · Since 2023

Eric Gerzner Récupération specializes in the recovery of ferrous and non‑ferrous metals and in waste management services. Offerings include collection and processing of metals (e.g., copper, aluminium, cables, stainless steel, brass, cast iron), provision of bins and containers (4–36 m3 and 1–2.5 m3) and transport using multilift and crane trucks.

Waste Management Industry
View profile2.3(3)
ESPRI entreprises sociales pour l'insertion Logo

ESPRI entreprises sociales pour l'insertion 

Aigle · Since 2020

The core activity of ESPRI is to promote the social and professional integration of individuals through various activities, including: Biodiversity and wildlife conservation (Biodiversité & Faune), solar and photovoltaic installations (Solar emploi), and services and trade (Biens & Services). The company also offers training and employment programs to integrate people into these areas. A special project is the creation of SOLAR, an undertaking specializing in the training and integration of individuals in the field of photovoltaics.

Sustainability Sector
View profile5(3)
EssairVent SA Logo

EssairVent SA 

Essertines-Sur-Rolle · Since 2010

EssairVent SA is a company responsible for developing, constructing and operating a wind farm project. The planned park comprises four wind turbines; site measurements and studies indicate favourable wind conditions and project an annual production per turbine of more than 10 GWh.

Energy Suppliers
View profile2.3(3)
EVWR Energiedienste Visp - Westlich Raron AG Logo

EVWR Energiedienste Visp - Westlich Raron AG 

Visp · Since 2004

The core activity of the company 'Energiedienste Visp - Westlich Raron AG' consists of providing services in the context of supplying the Visp - Westlich Raron region with electrical energy, including the operation and maintenance of the network in the districts of Visp and Westlich Raron.

Energy Suppliers
View profile5(3)
EW Lindau AG Logo

EW Lindau AG 

Winterberg Zh · Since 2019

The core activity of EW Lindau AG is the supply of the municipality of Lindau with various energy sources and services, in particular: electricity supply, heat supply (district heating), water supply, and fiber optic network and services. The company also offers various services such as network maintenance, billing and customer care.

Energy Suppliers
View profile4.3(3)
EWL Genossenschaft Logo

EWL Genossenschaft 

Lauterbrunnen · Since 1905

The core activity of EWL Genossenschaft is the supply of electricity, particularly through the use of hydropower, as well as the maintenance and operation of power grids and public lighting in the Lauterbrunnen region and its six districts.

Energy Suppliers
View profile4.7(3)
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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.