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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today

DirectoryEnergy & Environment

Energy & Environment

Filters

IndustryEnergy & Environment

Search results

Matching companies

9'016 companies found

Hazmat Partners Sàrl

Travers · Since 2024

Sustainability Sector

H. Blaser

Emmenmatt · Since 1980

Waste Management Industry

heavens-power GmbH

Wilen (Gottshaus) · Since 2013

Solar & Photovoltaics

Hecor GmbH

Lostallo · Since 2010

Waste Management Industry

HEDEL Sàrl

Lossy · Since 1997

Sustainability Sector

HEFTI - EES Energieerzeugungssysteme

Engi · Since 2007

Solar & Photovoltaics

Hefti's Entsorgungsservice

Berneck · Since 2014

Waste Management Industry

heiterweiter Solarenergie Inh. Rolf Klopfenstein

Bern · Since 2023

Solar & Photovoltaics

Heizgenossenschaft Affeltrangen

Affeltrangen · Since 1994

Energy Suppliers

Heizgenossenschaft Vorderkrauerhus Meiengrüeni

Neuenkirch · Since 2002

Energy Suppliers

Heizzentrale Kalchacker AG

Bremgarten B. Bern · Since 2007

Energy Suppliers

held für planung und nachhaltigkeit

Zurich · Since 1999

Sustainability Sector

Helfenstein Tannenhof Stiftung

Schenkon · Since 2016

Sustainability Sector

Heliogreen Sàrl

Geneva · Since 1997

Sustainability Sector

Hélios Solutions Solaires Sàrl

Reverolle · Since 2022

Solar & Photovoltaics

Hella Boccara Foundation

Arlesheim · Since 2022

Solar & Photovoltaics

Helvetia Solar AG

Solothurn · Since 2010

Solar & Photovoltaics

Helvyatech GmbH

Zug · Since 2021

Sustainability Sector

Hemera Energies SA

Granges (Veveyse) · Since 2023

Solar & Photovoltaics

Henovia SA

Lausanne · Since 2023

Sustainability Sector

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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.