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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

Volantiss Spirit AG Logo

Volantiss Spirit AG 

Baden · Since 2017

The core activity of Volantiss Spirit AG encompasses the development and implementation of innovative solutions for sustainable cities, mobility, and energy. Specifically, this includes: * Developing Smart City concepts and solutions for areas and real estate * Creating integrated mobility solutions, including electromobility and 'Mobility as a Service' concepts * Developing and integrating renewable energy sources, including solar energy and storage * Creating digital platforms and services for the integration of energy, mobility, and urban development * Consulting and implementing projects in the field of sustainable urban development, mobility, and energy. The company focuses on creating sustainable and future-proof solutions for cities, mobility, and energy, offering a wide range of services from strategy development to project implementation.

Sustainability Sector
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Voltaray GmbH Logo

Voltaray GmbH 

Zug · Since 2024

The core activity of Voltaray GmbH is the planning, consulting, installation and sale of solar systems for private and potentially commercial customers, with the goal of enabling sustainable and environmentally friendly energy generation.

Solar & Photovoltaics
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Volt Sagl Logo

Volt Sagl 

Lamone · Since 2018

Volt Sagl is a service company specializing in the planning, installation and maintenance of electrical systems, home automation, alarm systems, video surveillance, photovoltaic systems and data networks. The company's core activity is the provision of services in the field of electrical engineering and building automation.

Solar & Photovoltaics
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von Düring Management AG Logo

von Düring Management AG 

Lucerne · Since 1997

The core activity of the company 'Von Düring Group' encompasses the investment and development of projects in the following areas: 1. Renewable energies (in particular geothermal energy) 2. Tourism 3. Real estate The company focuses on the development of sustainable and environmentally friendly projects, particularly in the field of renewable energies. It owns a patented technology for geothermal power plants that are both environmentally friendly and economically beneficial.

Sustainability Sector
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ORIGIN LEDGERS AG Logo

ORIGIN LEDGERS AG 

Zug · Since 2020

V Shield AG designs, audits, and manages custom environmental integrity systems for measuring, managing and offsetting greenhouse gas emissions, with a particular focus on Scope 3. The company provides supplier mapping, emissions accounting, a digital registry (TradeRoom™/CarbonX), verified offsetting services and support for ESG reporting and regulatory alignment.

Management ConsultingSustainability SectorSoftware Development
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Wärmeverbund Ligerz AG Logo

Wärmeverbund Ligerz AG 

Ligerz · Since 2016

The core activity of the company is the management and organization of the municipality of Ligerz, including the provision of services, information and resources for the residents and visitors of the municipality.

Energy Suppliers
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Wärmeverbund Leimental AG Logo

Wärmeverbund Leimental AG 

Therwil · Since 1994

Energy Suppliers
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Wärmeverbund Rheinfelden AG Logo

Wärmeverbund Rheinfelden AG 

Rheinfelden · Since 2012

Energy Suppliers
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Wasserversorgung Naters A.G. Logo

Wasserversorgung Naters A.G. 

Naters · Since 1920

Water Supply
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Wasserversorgungsgenossenschaft Günikon Logo

Wasserversorgungsgenossenschaft Günikon 

Hohenrain

The company's core activity is water supply, including the management and maintenance of water supply facilities, the measurement of water quality parameters, and the provision of information and services to the population.

Water Supply
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Wasserversorgungsgenossenschaft Waldmatte Niederschongau Logo

Wasserversorgungsgenossenschaft Waldmatte Niederschongau 

Schongau · Since 1987

Water Supply
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water impulse GmbH Logo

water impulse GmbH 

Basel · Since 2019

The core activity of the company 'water impulse' is the development and marketing of technologies and products based on the rhythmic impulse of water to improve its quality and health promotion. This includes in particular the manufacture and distribution of devices such as the 'Oloid', which is used as a mixing and aeration device in various fields of application, as well as the provision of consulting and support services for projects in the field of water treatment and purification.

Sustainability Sector
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Weber Montagen GmbH Logo

Weber Montagen GmbH 

Obergerlafingen · Since 2018

The core activity of Schneitter Weber Solar AG is the planning, installation and maintenance of photovoltaic systems, in particular rooftop, flat roof, in-roof and facade solar systems, for single-family homes, multi-family homes and commercial buildings in Switzerland.

Solar & Photovoltaics
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We Care More GmbH Logo

We Care More GmbH 

Hünenberg · Since 2018

The core activity of We Care More GmbH is the financing and support of sustainable and fair productions and products on a global level, particularly in the areas of renewable energy, material recycling, health and medicine, as well as providing resources and know-how in crisis situations.

Sustainability Sector
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w-energie gmbh Logo

w-energie gmbh 

Sempach · Since 2015

Technical Consulting & EngineeringSustainability Sector
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West & Ost Energy AG Logo

West & Ost Energy AG 

Geneva · Since 2013

The core activity of West Ost Energy AG is the trade in natural gas and the efficient and cost-effective delivery of natural gas to consumers. The company is an independent natural gas supplier and offers natural gas deliveries throughout Europe.

Energy Suppliers
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WildKosmos GmbH Logo

WildKosmos GmbH 

Linden · Since 2004

Organic FarmsSustainability Sector
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WILI WILI TREE AG Logo

WILI WILI TREE AG 

Bern · Since 2023

WILI WILI TREE® designs and manufactures waterproof bags and other outdoor products made from recycled PET material, which are simple, functional, high-quality and sustainable. The focus is on minimalist design and a respectful approach to nature.

Sustainability Sector
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winmit GmbH Logo

winmit GmbH 

Stäfa · Since 2010

Management ConsultingWaste Management Industry
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Winteler Haustechnik AG Logo

Winteler Haustechnik AG 

Gossau Sg · Since 2004

Solar & Photovoltaics
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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.