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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

Ophrys consulting Tobias Richter

Dulliken · Since 2023

Sustainability Sector

Optiluz Sàrl

Pailly · Since 2022

Sustainability Sector

INFRASEED SOLE AG

Zurich · Since 2019

Energy SuppliersWholesale - Construction & Raw Materials

ORAQUEL AG

Cham · Since 2023

Sustainability Sector

Orbatron Solartechnik, O. Üstün

Bülach · Since 1993

Solar & Photovoltaics

OR D BEN Sàrl

Grand-Lancy · Since 2008

Waste Management Industry

Origin for Sustainability

Lausanne · Since 2024

Sustainability Sector

Orllati Désamiantage (GE) SA

Le Lignon · Since 2018

Waste Management Industry

Ornithologiebüro Weggler

Horgenberg · Since 2020

Sustainability Sector

Orsolya Nyárai - Shelley's Green Consultancy

Renens Vd · Since 2024

Sustainability Sector

ORUN CONCEPT SA

Lausanne · Since 2004

Sustainability Sector

Osources Sàrl

Châtel-St-Denis · Since 2023

Sustainability Sector

Ott Fuhr- und Kompostbetrieb

Küssnacht Am Rigi · Since 2017

Waste Management Industry

OTV, Société par Actions Simplifiée Unipersonnelle, à Saint-Maurice (France), succursale de Lausanne

Lausanne · Since 2020

Waste Management Industry

Ovras Electricas Frisal SA

Tavanasa · Since 1958

Energy Suppliers

Ozact Suisse SA

Denens · Since 2014

Sustainability Sector

Pachtgenossenschaft Dällikon PGD

Dällikon · Since 1997

Sustainability Sector

Pacta Anlagen GmbH

Spreitenbach · Since 2024

Sustainability Sector

Palézieux Bio-énergies SA

Palézieux · Since 2012

Energy Suppliers

Panada Group SA

Vacallo · Since 2022

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.

Per page

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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.