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© 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

Hydrelco SA

Lignerolle · Since 2009

Energy Suppliers

Hydrosys AG

Appenzell · Since 2008

Energy SuppliersSustainability Sector

IBB Erdgas AG

Brugg Ag · Since 2001

Energy Suppliers

Illumia Swiss SA

Lugano · Since 2015

Energy Suppliers

Impianti elettrici Bivio società cooperativa

Bivio · Since 1974

Energy Suppliers

InfraTREyto SA

Treytorrens (Payerne) · Since 2023

Energy Suppliers

IOWN Energy GmbH

Zurich · Since 2023

Energy Suppliers

IWB Energie Schweiz AG

Basel · Since 2013

Energy Suppliers

Jean-Claude Bernard

Lavey-Village · Since 2009

Energy Suppliers

Jürgen Jennerwein Handelsfirma

Widnau · Since 2012

Energy Suppliers

Kleinkraftwerk Saien AG

Urnäsch · Since 1993

Energy Suppliers

Klimapartner AG

Bösingen · Since 1995

Energy Suppliers

Kraftwerk Rüchlig AG

Aarau · Since 2017

Energy Suppliers

Kraftwerk Sarneraa AG

Alpnach Dorf · Since 1955

Energy Suppliers

Kraftwerk Wannenfluh AG

Zollbrück · Since 1998

Energy Suppliers

KROPF Wärmeverbund GmbH

Unterlangenegg · Since 2021

Energy Suppliers

Kunz Meinisberg AG

Meinisberg · Since 2022

Energy Suppliers

La Biolettaz, société coopérative

Le Lieu · Since 2016

Energy Suppliers

La Praye Energie SA

Courtelary · Since 2014

Energy Suppliers

Legna Energia Ticino SA

Taverne · Since 2009

Energy Suppliers

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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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