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

Energy & Environment

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IndustryEnergy & Environment
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Matching companies

9'016 companies found

ah support GmbH Logo

ah support GmbH 

Willisau · Since 2020

The core activity of AH Support is to provide services in the fields of occupational safety, health protection, environmental protection and energy management, as well as to support companies in planning and coordinating projects and in administrative tasks in the supply chain.

Sustainability Sector
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Ahueni AG Logo

Ahueni AG 

Burgdorf · Since 2021

The core activity of Ahueni AG is the development and participation in carbon finance projects, particularly in the areas of climate protection and environmental finance. The company secures agile financing for these projects and strives to provide high-quality carbon credits to a select group of carbon offset buyers. A specific example of this is the "One Mara Carbon Project" in collaboration with the Maasai Mara Wildlife Conservancies Association (MMWCA).

Sustainability Sector
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aikemy GmbH Logo

aikemy GmbH 

Zurich · Since 2020

The core activity of aikemy is the development and provision of Pocket Laboratories, portable laboratories that enable real-time analysis of the composition of materials such as feed, grains, seeds, and other substances. To achieve this, artificial intelligence, big data, and NIR sensor technology are employed. aikemy's solutions aim to increase efficiency in agriculture, animal nutrition, and other areas, reduce costs, and minimize environmental impact.

Sustainability Sector
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aikos Ökologie Balmer Logo

aikos Ökologie Balmer 

Binningen · Since 2014

The core activity of aikos is ecological planning, consulting and research in the field of nature and environment.

Sustainability Sector
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Airborn Fuels Switzerland AG Logo

Airborn Fuels Switzerland AG 

Zurich · Since 2020

The core activity of Airborn Fuels Switzerland AG is the development and production of sustainable aviation fuel (SAF), particularly through the conversion of CO2 into synthetic kerosene. The company aims to scale up SAF production and achieve 100% carbon-neutral air travel by 2050.

Sustainability SectorPetroleum Processing
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Airfix Carbon AG Logo

Airfix Carbon AG 

Zurich · Since 2023

The core activity of Airfix is the development and implementation of projects in the field of Bioenergy with Carbon Capture and Storage (BECCS), including consulting, project development, financing, transportation and permanent storage of CO2. The company also offers certified BECCS carbon removal certificates and supports the creation of a BECCS market in Switzerland and Europe.

Sustainability Sector
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Airmes AG Logo

Airmes AG 

Kirchberg Be · Since 2002

The core activity of Airmes AG is the implementation of measurements and analyses in the field of air pollution control, particularly in the areas of emissions, immissions and workplace measurements. The company offers consulting and services to support companies in complying with environmental regulations and optimizing their processes. The core activities include: Emission measurements in accordance with the Air Pollution Control Ordinance (LRV); Immission measurements and monitoring; Workplace measurements and consulting; Consulting on the optimization of levies; Measurement and analysis of air pollutants and VOC-containing products. The company positions itself as an independent partner for companies that want to minimize their environmental impact and optimize their processes.

Sustainability Sector
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AirVeraCity SARL Logo

AirVeraCity SARL 

Belmont-Sur-Lausanne · Since 2019

The core activity of AirVeraCity is the development and deployment of mobile air quality sensors installed on city buses to create high-resolution air quality maps in real-time. These sensors capture various air pollutants such as NO2, PM1, PM2.5, PM10, O3, CO, VOC, SOx, LDSA, temperature, and humidity. The collected data is used to provide accurate and localized air quality information, which is useful for urban planning, traffic congestion management, public health, and other applications.

Sustainability Sector
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AirYacht SA Logo

AirYacht SA 

Ollon Vd · Since 2021

The core activity of AirYacht is the development and operation of luxury airships for air cruises, enabling the attainment and enjoyment of various destinations without environmental impact.

Sustainability Sector
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Akademie der Naturwissenschaften Schweiz SCNAT Logo

Akademie der Naturwissenschaften Schweiz SCNAT 

Bern · Since 2016

The company's core activity is the promotion and coordination of scientific activities and research in Switzerland, particularly in the areas of sustainability and climate protection. The company supports policy, administration and economy with expertise and actively participates in public discourse. It promotes the exchange between scientific disciplines and supports young scientists. Furthermore, it operates platforms for dialogue between science and society and awards prizes for outstanding scientific achievements.

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.