ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The first Swiss company directory, built to boost AI visibility.

Product
  • Pricing
  • Directory
  • Industries
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,089 companies indexed · Last updated: today
DirectoryEnergy Suppliers

Energy Suppliers

Filters
IndustryEnergy & EnvironmentIndustryEnergy Suppliers
Search results

Matching companies

1'141 companies found

BavoisEole SA Logo

BavoisEole SA 

Bavois · Since 2016

The core activity of BavoisEole SA is the planning, development and realization of wind farms, particularly the Parc éolien de Bavois in the canton of Vaud, Switzerland. The company focuses on the production of renewable energy through wind power, thereby covering the energy needs of households and municipalities.

Energy Suppliers
View profile
Bel Coster SA Logo

Bel Coster SA 

L'Abergement · Since 2018

The core activity of Alpiq is the generation, trading and management of energy, particularly in the field of renewable energies such as hydropower, wind energy, solar energy and storage solutions. The company develops and operates energy plants, trades in electricity and gas, and offers services in the field of energy and risk management.

Energy Suppliers
View profile
Bérocad SA Logo

Bérocad SA 

St-Aubin-Sauges · Since 2013

Energy Suppliers
View profile
BiEAG Biomasse Energie AG Logo

BiEAG Biomasse Energie AG 

Hünenberg · Since 2008

The core activity of BiEAG Biomasse Energie AG is the production of electricity and heat from biogenic waste in a biomass cogeneration plant. The company operates a facility that converts manure and other biogenic waste into energy, which is then supplied to the population in the form of electricity and heat.

Energy Suppliers
View profile
Bio-Energ'Etique SA Logo

Bio-Energ'Etique SA 

Bure · Since 2012

Bio-Energ'Etique SA operates methanisation facilities that convert organic waste into biogas and produce electricity and heat. The company supplies methanised slurry and manure as organic fertilizers and provides agricultural services including spreading, drying, photovoltaic installations, container rental and transport.

Energy Suppliers
View profile
Bioenergie Tägerwilen AG Logo

Bioenergie Tägerwilen AG 

Tägerwilen · Since 2018

The core activity of Bioenergie Tägerwilen AG is the production of renewable energy in the form of biogas through the anaerobic digestion of biogenic waste materials, including green waste, straw-containing waste and farm manure. Additionally, compost is produced in an integrated composting plant, which is used as fertilizer.

Energy SuppliersWaste Management Industry
View profile
Bio Gas Lindau AG Logo

Bio Gas Lindau AG 

Lindau · Since 2006

The core activity of Bio Gas Lindau AG is the utilization of organic waste for the production of biogas, which is then converted into electricity, heat and fertilizer. The company operates a biogas plant, where organic waste is returned to a natural cycle. The produced products are: Electricity: Supplying approximately 700 households Heat: Utilization of waste heat from electricity production Fertilizer: Utilization of residues from the biogas plant as full fertilizer. The company thus offers a comprehensive solution for waste utilization and the production of renewable energy.

Energy SuppliersWaste Management Industry
View profile
Biogas Zürich AG Logo

Biogas Zürich AG 

Zurich · Since 2011

The core activity of Biogas Zürich AG is the production of biogas and fertilizer products from biogenic waste. The company utilizes the gas potential of biogenic materials to produce biogas while simultaneously manufacturing fertilizer products that return nutrients to nature.

Energy SuppliersWaste Management Industry
View profile
BioGem Express AG Logo

BioGem Express AG 

Zurich · Since 2020

The core activity of bGX is the procurement, trading and marketing of biogas and renewable fuels, particularly biomethane, from waste materials and non-food based raw materials. The company supports energy suppliers and industrial companies in their transition to renewable energies and helps them reduce their greenhouse gas emissions. To this end, bGX offers a range of services, including the procurement of guarantees of origin (GoOs), the conduct of audits and the calculation of CO2 balances.

Energy SuppliersWholesale - Fuels & Petroleum Products
View profile
Birseck Hydro AG Logo

Birseck Hydro AG 

Münchenstein · Since 2002

Birseck Hydro AG operates hydropower plants certified under the naturemade-star label and allocates part of its electricity revenues to an eco fund. The fund finances ecological improvement projects in the Birs catchment area and is managed by a steering committee including representatives of the canton of Baselland, ProNatura and aventron AG.

Energy Suppliers
View profile
Blue-Water-Power AG Logo

Blue-Water-Power AG 

Schafisheim · Since 2006

Blue-Water-Power AG develops products and solutions that harness the energy potential of drinking water and wastewater for electricity generation and heat use. For market and project handling of new initiatives the company refers enquiries to the firm Häny AG.

Technical Consulting & EngineeringEnergy Suppliers
View profile
Büren Wärme AG Logo

Büren Wärme AG 

Büren An Der Aare · Since 2015

The company's core activity is the supply of electricity and water to customers, including the provision of energy products, eco-certificates, tariffs and services in the field of energy and water supply.

Energy Suppliers
View profile
Càd EcoLogis SA Logo

Càd EcoLogis SA 

Péry · Since 2020

Càd EcoLogis SA operates a district heating system (chauffage à distance/CAD) supplying heat to connected buildings.

Energy SuppliersSustainability Sector
View profile
CADIOM SA Logo

CADIOM SA 

Le Lignon · Since 1999

CADIOM SA operates a district heating network supplied with heat recovered from the Cheneviers waste incineration plant. It provides heat to residential and tertiary customers via a primary pipe network and heat-exchange substations, using superheated water circulated in a closed loop.

Energy Suppliers
View profile
CADOUEST SA Logo

CADOUEST SA 

Prilly · Since 2011

The core activity of Cadouest SA is the planning, construction, realization, execution, maintenance and operation of district heating networks, as well as the distribution and sale of heat in the municipalities of Prilly and Renens. The company focuses on the use of renewable energies and the reduction of CO2 emissions.

Energy Suppliers
View profile
Calore SA Logo

Calore SA 

Locarno · Since 1996

The core activity of Calore SA consists in the planning, implementation and management of district heating systems in Switzerland, particularly in the canton of Ticino. This also includes conducting feasibility analyses and taking on contracting tasks, where the company, as contractor, assumes responsibility for the planning, implementation, financing and management of heat and cooling systems for customers.

Energy Suppliers
View profile
Chauffage à distance Basse-Areuse S.A. CAD Logo

Chauffage à distance Basse-Areuse S.A. CAD 

Colombier Ne · Since 1985

Chauffage à distance Basse-Areuse S.A. CAD operates a district heating network that recovers waste heat from a waste incineration plant and distributes it via buried hot-water pipes to buildings. The company supplies buildings in the municipalities of Milvignes, Boudry and Cortaillod and uses service providers such as Viteos for customer service and technical operations.

Energy Suppliers
View profile
Christen Energie AG Logo

Christen Energie AG 

Luthern · Since 2016

The core activity of Zürichsee Solarstrom AG (ZSSAG) is the planning, installation, commissioning and operation of photovoltaic systems (PV systems) for energy generation through solar power. In addition, the company also offers services such as consulting and operation of PV systems, including the assumption of roof usage rights and the compensation of energy yields (ZEV).

Energy Suppliers
View profile
CKW AG Logo

CKW AG 

Lucerne

CKW AG is an energy and services company that generates electricity, operates grid infrastructure, and provides energy solutions such as photovoltaic systems, battery storage and heat networks. It also supplies building-technology services (heat pumps, charging infrastructure, electrical installations) and ICT services including datacenter, IT security and connectivity for residential and commercial customers.

Energy Suppliers
View profile
COMBA Energies SA Logo

COMBA Energies SA 

Arbaz · Since 2009

The core activity of the company is the management and administration of a municipality (Commune d'Arbaz) in the canton of Valais, Switzerland. The activities include, among others: public services such as population control, social services and tax administration; tourism promotion through the Office du Tourisme Anzère; management of public facilities such as schools, libraries and sports facilities; support for local businesses and organizations; and provision of information and services to the population, such as energy supply, transport and mobility.

Energy Suppliers
View profile
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
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
102050
  • 1
  • More pages
  • 17
  • 18
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.
  • 19
  • 20
  • More pages
  • 58