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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

Sunnehofenergie GmbH Logo

Sunnehofenergie GmbH 

Marthalen · Since 2006

Energy Suppliers
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Sunora AG Logo

Sunora AG 

Oberstetten · Since 2024

Solar & Photovoltaics
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suntec4u GmbH Logo

suntec4u GmbH 

Wisen So · Since 2011

Technical Consulting & EngineeringSustainability Sector
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Sunturn GmbH Logo

Sunturn GmbH 

Zurich · Since 2023

The core activity of Sunturn Energy GmbH is the development and provision of customized solar energy solutions for various application areas, including residential, industrial, e-mobility, power generation and agricultural sectors. The company focuses on delivering high-quality components, such as photovoltaic panels, inverters, batteries and charging stations for electric vehicles, and also provides comprehensive support services for installers and EPC companies to ensure successful project implementation.

Solar & Photovoltaics
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sustain4you gmbh Logo

sustain4you gmbh 

Münchenbuchsee · Since 2024

Sustainability Sector
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Sustainable Design Diffusion sàrl Logo

Sustainable Design Diffusion sàrl 

Palézieux-Village · Since 2020

The core activity of S2D AGENCY is the marketing and distribution of sustainable design products, particularly furniture and interior design items, from various partners such as ALKI, INCLASS, SANCAL and VINCENT SHEPPARD. The company acts as an agency and also provides its customers with consulting and support in the selection and implementation of sustainable design solutions.

Sustainability Sector
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SwiCETec Swiss Clean Energy Technology SA Logo

SwiCETec Swiss Clean Energy Technology SA 

Lausanne · Since 2009

Solar & Photovoltaics
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Swiss Contracting, Forum für Energiedienstleistungen Logo

Swiss Contracting, Forum für Energiedienstleistungen 

Möriken Ag · Since 2000

Energy Suppliers
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Swiss-Ecotechnologies Sàrl Logo

Swiss-Ecotechnologies Sàrl 

Vandoeuvres · Since 2010

Technical Consulting & EngineeringSustainability Sector
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Swiss Green Buildings (SGB) Logo

Swiss Green Buildings (SGB) 

Glattpark (Opfikon) · Since 2017

The core activity of Swiss Green Buildings (SGB) is to provide a platform for Swiss companies specializing in sustainable planning and construction in China. The organization aims to promote, disseminate and make known Swiss quality standards and sustainable technologies in urban planning and construction in China.

Sustainability Sector
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Swiss Green Power Tech Sàrl Logo

Swiss Green Power Tech Sàrl 

Dully · Since 2023

The core activity of Swiss Green Power Tech is the conception, construction, installation and maintenance of solar energy systems for private households and companies. This also includes the distribution and sales activities of solar energy technologies and components, as well as the implementation of projects in the field of renewable energies.

Solar & Photovoltaics
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Swiss HP Solar GmbH Logo

Swiss HP Solar GmbH 

Lenk Im Simmental · Since 2016

Solar & Photovoltaics
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swissjoule gmbh Logo

swissjoule gmbh 

Heiden · Since 2017

swissjoule gmbh develops and places renewable energy projects and provides consulting in project development, financial modelling and energy efficiency. It works with technologies such as photovoltaic, wind and hydro generation, hydrogen and ammonia production, water purification and waste-to-pyrolysis processing, and assists with project placement, financing and carbon credit certification.

Solar & Photovoltaics
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Swisspower Renewables AG Logo

Swisspower Renewables AG 

Zug · Since 2011

Swisspower Renewables AG is an investment company founded by Swisspower municipal utilities that invests in facilities for the production of renewable energy. It focuses on onshore wind and hydropower and acquires, operates and manages renewable-energy plants in Switzerland and Central Europe, including through subsidiaries in Germany and Italy.

Energy Suppliers
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Helios Therm GmbH Logo

Helios Therm GmbH 

Muttenz · Since 2023

Solar & Photovoltaics
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Swissvoltaic GmbH Logo

Swissvoltaic GmbH 

Läufelfingen · Since 2014

Solar & Photovoltaics
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Swisswatt One AG Logo

Swisswatt One AG 

Balgach · Since 2022

Solar & Photovoltaics
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Swisun Energy - Inh. Bayeh Logo

Swisun Energy - Inh. Bayeh 

Tennwil · Since 2022

Solar & Photovoltaics
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SWW-Energy GmbH Logo

SWW-Energy GmbH 

Richenthal · Since 2010

Construction & Project ManagementSustainability Sector
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SYMBO GmbH Logo

SYMBO GmbH 

Dornach · Since 1998

The core activity of Symbo GmbH is the development, manufacture and implementation of ecological small wastewater treatment plants, particularly sand filter treatment plants, for the purification of wastewater, as well as the conduct of investigations and services in the field of water and soil quality, including source and groundwater investigations and soil quality analyses.

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.