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

Energy Suppliers

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1'141 companies found

Wärmeverbund Burgistein / Seftigen GmbH Logo

Wärmeverbund Burgistein / Seftigen GmbH 

Burgistein · Since 2014

Wärmeverbund Burgistein / Seftigen GmbH operates a wood-chip district heating plant that burns residual wood to produce heat. The system supplies space heating and domestic hot water to residential buildings, industrial and commercial customers, and sports halls in parts of Burgistein and Seftigen.

Energy Suppliers
View profile5(6)
AEW Energie AG Logo

AEW Energie AG 

Aarau · Since 1916

The company's core activity is the provision of services in the field of energy supply and distribution, including: network construction, operation and maintenance, metering services, public lighting and area lighting, battery storage solutions (BESS), electromobility and charging stations, telecommunications, heat and cold projects, and energy supply and sales. The company also offers various services for business customers, such as electricity procurement, network usage and natural electricity certificates.

Energy SuppliersSolar & Photovoltaics
View profile3.4(5)
Broder Erdwärme GmbH Logo

Broder Erdwärme GmbH 

Sargans · Since 2006

Broder Erdwärme GmbH performs geothermal borehole drilling (ground heat probes) and the installation of connecting pipelines, and supplies precast concrete elements such as prefabricated garages.

Energy Suppliers
View profile4(5)
Cadcime SA Logo

Cadcime SA 

Eclépens · Since 1993

Cadcime SA is engaged in the production and distribution of district heating. It operates a network of underground pipes through which hot water circulates to heat buildings in the surrounding area. The company's core activity includes the production, distribution and sale of district heating to private and business customers.

Energy Suppliers
View profile4.8(5)
EKT AG Logo

EKT AG 

Arbon · Since 1912

EKT AG operates electricity distribution networks and provides engineering, construction and operational services for network planning and grid management. The company also develops and operates renewable energy installations and energy contracting solutions for buildings, and offers digital services such as a fibre-optic network and a datacenter.

Energy Suppliers
View profile5(5)
Elektrizitätsversorgung Kaltbrunn AG Logo

Elektrizitätsversorgung Kaltbrunn AG 

Kaltbrunn · Since 1947

The core activity of Elektrizitätsversorgung Kaltbrunn AG (EVK AG) encompasses the reliable supply of private customers, commercial enterprises, administrations, schools, agriculture and medium-sized industry with electricity and natural gas. This also includes electrical and communication installations, property management, the operation of an electrical specialist store, as well as the rental of aerial lifts.

Energy Suppliers
View profile5(5)
Elektrizitätswerk Obergoms AG Logo

Elektrizitätswerk Obergoms AG 

Münster Vs · Since 1950

The company is an electricity supplier specializing in the production, distribution and supply of electrical energy. The core activities include the generation of electricity from various sources, such as hydroelectric power plants, the supply of electricity to households and businesses, as well as the maintenance and operation of the power grid. In addition, the company also offers services such as energy consulting, meter reading and replacement, as well as the installation of electric charging stations for electric vehicles.

Energy Suppliers
View profile4.2(5)
Industrielle Betriebe Murten Logo

Industrielle Betriebe Murten 

Murten · Since 2017

The core activity of IB-Murten encompasses the provision of sustainable energy supply solutions, clean drinking water, and innovative building technologies in the Murten region. Specifically, the company offers the following services: * Supply of high-quality water * District heating for businesses * Photovoltaic solutions for economic and environmentally friendly energy supply * E-charging stations for business customers * Electrical installations with individual consulting, support, and execution The company focuses on sustainable and environmentally friendly solutions and strives to actively shape the energy transition in the Murten region.

Energy Suppliers
View profile2.6(5)
Kummler+Matter EVT SA Logo

Kummler+Matter EVT SA 

Le Mont-Sur-Lausanne · Since 2019

Kummler+Matter EVT SA is a branch specialising in overhead line technology that develops, manufactures and installs system solutions for rail, tram and trolleybus operations. Its services include product development, system engineering, production (with a Swiss Made product range) and specialised offerings such as charging points, de-icing systems and line isolators.

Energy Suppliers
View profile5(5)
RTB Regionale Technische Betriebe Logo

RTB Regionale Technische Betriebe 

Wildegg · Since 2019

The company's core activity is the provision of services in the field of public utilities, particularly in the areas of electricity, water, construction, district heating, IT services and communication networks, as well as the provision of energy and services for municipalities and municipal institutions.

Energy Suppliers
View profile3.4(5)
Werkbetriebe Wynau (WBW) Logo

Werkbetriebe Wynau (WBW) 

Wynau · Since 2009

Werkbetriebe Wynau (WBW) is an enterprise responsible for energy supply. It operates the electricity supply and provides information on tariffs, applications and business reports.

Energy Suppliers
View profile3.8(5)
Azienda elettrica ticinese Logo

Azienda elettrica ticinese 

Monte Carasso · Since 1959

Azienda elettrica ticinese is an energy utility that produces electricity and heat, operates grid and transmission services, engages in energy trading, and provides energy-related products and services including production facilities and electromobility offerings.

Energy Suppliers
View profile5(4)
Biogas Ticino SA Logo

Biogas Ticino SA 

S. Antonino · Since 2011

The core activity of Biogas Ticino SA is the production of energy from so-called Sottoprodotti, i.e. by-products from agriculture and industry that have reached the end of their life cycle. These by-products are referred to as biomass and consist of 80% agricultural products and 20% co-substrates.

Energy Suppliers
View profile4(4)
Calandawind AG Logo

Calandawind AG 

Haldenstein · Since 2013

The core activity of Calandawind is the planning, construction and operation of wind power plants, in particular the largest wind power plant in Switzerland, to produce electricity.

Energy Suppliers
View profile5(4)
Électricité d'Émosson SA Logo

Électricité d'Émosson SA 

Martigny · Since 1954

The core activity of Electricité d'Emosson SA is the production of electrical energy through hydropower, particularly through the operation of hydroelectric power plants, such as the Barrage d'Emosson, and the generation of energy from water resources.

Energy Suppliers
View profile4.5(4)
Elektra Kesswil Logo

Elektra Kesswil 

Kesswil · Since 1911

The core activity of the company is the management and administration of the political municipality of Kesswil, including the provision of services and information to citizens as well as the management of municipal affairs.

Energy Suppliers
View profile4(4)
Elektra Mettauertal und Umgebung Genossenschaft (EMU) Logo

Elektra Mettauertal und Umgebung Genossenschaft (EMU) 

Hottwil · Since 1916

The core activity of Elektra Mettauertal and Umgebung is the supply of electricity to customers and the associated services, such as meter reading, management of customer notifications and provision of online switches for customers. The company also offers services in the field of installation and construction of power grids.

Energy Suppliers
View profile3(4)
Elektrizitätsversorgung Altendorf AG Logo

Elektrizitätsversorgung Altendorf AG 

Altendorf · Since 1920

The core activity of Elektrizitätsversorgung Altendorf AG is the supply of electricity. The company reliably and securely supplies its customers with electricity and offers various services, such as maintenance and expansion of the power grid.

Energy Suppliers
View profile4.8(4)
e-Systeme AG Logo

e-Systeme AG 

Münchenstein · Since 1983

The e-Systeme AG company offers services in the field of renewable energies, particularly: * Planning, installation and maintenance of heat pumps, photovoltaic systems, battery storage and electromobility solutions * Consulting and implementation of individual energy systems for private households and companies * Impulse consulting for efficient and sustainable energy concepts. The company's core activity is the planning, installation and maintenance of renewable energy and electromobility systems.

Energy SuppliersSolar & Photovoltaics
View profile5(4)
Fornera Elettricità di Carlo Fornera Logo

Fornera Elettricità di Carlo Fornera 

Losone · Since 2002

The core activity of Elettricità Fornera is the supply and distribution of electricity.

Energy Suppliers
View profile4.5(4)
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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.
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