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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

Ocean Assets Institute

Vex · Since 2017

Sustainability Sector

OCENA SA

Glovelier · Since 2022

Solar & Photovoltaics

OCUR SA

Charrat · Since 2024

Sustainability Sector

Oehler Privatentsorgungen

Wittenbach · Since 2015

Waste Management Industry

Oekoscience AG

Zurich · Since 1989

Sustainability Sector

Oh! Ganic Sàrl

Grandvaux · Since 2017

Sustainability Sector

Oka

Boudry · Since 2026

Sustainability Sector

Ökologiebüro LebensNetz, Andreas Hobi

Hagendorn · Since 2001

Sustainability Sector

Ökostrom Augstholz AG

Kleinwangen · Since 2023

Energy Suppliers

Öko Tester

Basel · Since 2013

Sustainability Sector

Ökovolt Schweiz AG

Wangen Sz · Since 2024

Solar & Photovoltaics

Olivier Pochelon

Prilly · Since 2020

Sustainability Sector

Olivier TREE GmbH

Adligenswil · Since 2021

Sustainability Sector

OMNI METAL IMPEX & RECYCLING SA

Forel Fr · Since 2009

Waste Management Industry

Omniplans di Rebozzi Paolo

Giubiasco · Since 2022

Sustainability Sector

ON A MISSION

Le Vaud · Since 2019

Sustainability Sector

oneAIM GmbH

Auslikon · Since 2010

Sustainability Sector

One-Drop Water GmbH

Root D4 · Since 2018

Sustainability Sector

ONSuisse & Internationale snc

Miège · Since 2024

Sustainability Sector

Open Planet Stiftung

Zug · Since 2024

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.