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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,219 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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IndustryEnergy & Environment
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Matching companies

9'014 companies found

Somiral Energy Supplies SA Logo

Somiral Energy Supplies SA 

Randogne · Since 1985

The company's core activity is the planning, construction and maintenance of renewable energy systems, particularly photovoltaic systems, for the private sector and major energy suppliers. This includes the provision of engineering services, the installation and commissioning of systems, as well as the automation and maintenance of electromechanical systems.

Solar & Photovoltaics
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SONATEC Gilbert Sonnay Sàrl Logo

SONATEC Gilbert Sonnay Sàrl 

Lucens · Since 2024

The company Sonatec is engaged in the development and distribution of ecological, economic and natural water treatment systems. Their products, such as Sonatec Home, Sonano and Cintropur, aim to clean and strengthen water without the use of chemical additives. The areas of application include private households, industry, agriculture and animal husbandry.

Water SupplyMechanical Engineering Industry
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Sonder Energie GmbH Logo

Sonder Energie GmbH 

Salouf · Since 2021

The core activity of the company "Center da Biomassa" is the production and distribution of regional, sustainable bio-quality products, in particular bio-bedding, bio-compost, wood chips and other similar products, such as Tera Grischuna, a biowaldboden alternative with effective microorganisms.

Waste Management IndustryRetail - Agricultural Materials & Animals
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SONKRAFT SA Logo

SONKRAFT SA 

Lugano · Since 2013

The core activity of Sonkraft SA is investing in solar energy, particularly in the planning, procurement and construction (Engineering, Procurement and Construction, EPC) of large photovoltaic plants (PV-plants) in the megawatt range, as well as in the operation and maintenance (Operation & Maintenance, O&M) of these plants.

Solar & Photovoltaics
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Sonnenenergie Plus GmbH Logo

Sonnenenergie Plus GmbH 

Uetendorf · Since 2022

The core activity of Sonnenenergie Plus GmbH is the planning, installation and maintenance of photovoltaic systems and solar systems, including the provision of energy storage systems, heat pumps and charging solutions for private and commercial customers. The company also offers service and repair services for solar systems and develops customized energy concepts for its customers.

Solar & Photovoltaics
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SOPRO Capital Swiss GmbH Logo

SOPRO Capital Swiss GmbH 

Pfäffikon Sz · Since 2024

SOPRO Capital Swiss GmbH is a renewable energy asset manager specializing in the development and management of solar PV and battery energy storage system (BESS) projects. The company provides project development, financing, technical and financial assessments, securing land-use rights, permitting, power purchase and interconnection agreements, and asset management services.

Solar & PhotovoltaicsFunds & Investment Companies
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Sorbus Gehölze Theiler Logo

Sorbus Gehölze Theiler 

Gurtnellen · Since 2020

The core activity of Sorbus is the propagation of native woody plants through the collection of autochthonous seeds and their cultivation in a propagation garden. The company specializes in the production of plants that represent high quality from a nature conservation perspective and are used in their area of origin.

Sustainability Sector
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Sortierwerk Bazenheid AG (sobag) Logo

Sortierwerk Bazenheid AG (sobag) 

Bazenheid · Since 2011

The company's core activity encompasses the disposal and recovery of waste, including the operation of thermal facilities, sorting plants, logistics and recycling facilities, as well as landfills. The company also offers services such as waste consulting and plant tours.

Waste Management Industry
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SOWAREEN SOLUTIONS AG Logo

SOWAREEN SOLUTIONS AG 

Bassersdorf · Since 2004

The core activity of SOWAREEN Solutions AG is the development and investment-based implementation of modern and sustainable technologies, particularly in the areas of waste management, energy recovery from household and industrial waste, renewable energies, and water and wastewater management. The company focuses on creating sustainable economic cycles and infrastructure projects by offering solutions for the development and renewal of elementary infrastructures in cities and regions.

Sustainability Sector
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SO'WATT Sàrl Logo

SO'WATT Sàrl 

Villars-Sur-Glâne · Since 2018

So'Watt is primarily engaged in energy efficiency and sustainable energy consulting for various sectors such as industry, real estate parks, municipalities, cantons, and agriculture. The core activities include: energy audits and analyses, development of strategies for energy efficiency and climate protection, installation of solar systems and other renewable energy sources, optimization of energy consumption and production, consulting for the renovation and modernization of buildings and facilities, and support for the implementation of energy efficiency measures and the reduction of CO2 emissions.

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.