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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

Lenzin Heizungen AG Logo

Lenzin Heizungen AG 

Wölflinswil · Since 1999

The core activity of Lenzin Heizungen AG is the planning, development and installation of heating and heat technology systems, including heat pumps, wood heating systems, solar systems, oil and gas heating systems, district heating, heat distribution systems and comfort ventilation systems. Additionally, the company offers services such as building energy consulting, heating service and oil heating service.

Solar & Photovoltaics
View profile4.9(13)
MB Service Haustechnik AG Logo

MB Service Haustechnik AG 

Brüttisellen · Since 2015

The core activity of MB Service Haustechnik AG is the provision of sanitary technical services, including: bathroom renovations, repair and maintenance work on sanitary facilities, sanitary installations, water treatment systems, and digital bathroom solutions. The company also offers consulting and planning for sanitary technical projects and implements them.

Interior ConstructionPlumbing & Building ServicesWater Supply
View profile5(13)
Nyffenegger Elektro AG Logo

Nyffenegger Elektro AG 

Windisch · Since 1971

The core activity of Nyffenegger Elektro AG is the provision of electrical installation services, including high and low voltage installations, telecommunications systems, photovoltaics, maintenance and repair work in new and renovation projects, as well as the planning and installation of electrical and photovoltaic systems.

Electrical Planning & InstallationSolar & Photovoltaics
View profile4.4(13)
Oliver Petrucciani Logo

Oliver Petrucciani 

Losone · Since 2016

Oliver Petrucciani provides transport, collection and waste disposal services, including container rental and the collection of scrap metal, bulky waste, green waste, wood, paper and glass. The company operates a collection and sorting centre authorized by the canton for regulated and special waste, coordinates delivery to specialised recyclers and implements an integrated quality and environmental management system (ISO 9001, ISO 14001).

Waste Management Industry
View profile5(13)
Petrucciani SA Logo

Petrucciani SA 

Losone · Since 2010

Petrucciani SA provides transport, collection and container rental services as well as disposal, recycling and demolition services for bulky waste, metal scrap, green waste, wood, paper and glass. The company operates an authorized collection and recycling centre handling reception, selection and sorting of materials and maintains integrated management systems certified to ISO 14001 and ISO 9001.

Waste Management Industry
View profile5(13)
Reusser Transporte AG Logo

Reusser Transporte AG 

Biberist · Since 1992

The core activity of Reusser Transporte AG encompasses a wide range of services in the fields of waste management, transportation, and gardening and landscaping. Specifically, the company offers the following services: waste collection and green waste disposal, skip rental, special transports, truck-mounted crane, thermosilo transport, chipping service, embankment mowing, rental of waste containers and portable toilets, tree cutting and snow removal. Thus, the company provides a comprehensive range of services for private individuals, companies, and municipalities in the Solothurn and Wasseramt regions.

Waste Management IndustryLogistics & Transport Companies
View profile4.2(13)
Ritter Recycling AG Logo

Ritter Recycling AG 

Altstätten Sg · Since 2002

The core activity of Ritter Recycling AG is the processing of gravel and recycling, including related services such as transportation, machine rental and contract work for agriculture.

Waste Management IndustryWholesale - Construction & Raw MaterialsTransport Companies
View profile4.5(13)
RSA Recycling- und Sortieranlage AG Logo

RSA Recycling- und Sortieranlage AG 

Buchs Sg · Since 2004

The core activity of RSA AG is the disposal and recycling of waste from industry, commerce and private households. To this end, the company operates a professional sorting facility for the recovery of valuable materials from delivered materials and special waste. The services include, among other things, the acceptance of industrial and commercial waste, private deliveries, special waste, old wood, as well as free delivery and container service.

Waste Management Industry
View profile4.2(13)
RUNER SOLAR GMBH Logo

RUNER SOLAR GMBH 

Aarau · Since 2020

The core activity of RUNER SOLAR is the planning, installation and maintenance of photovoltaic systems for private and commercial customers in Switzerland. The company offers comprehensive services, from consulting and planning to installation and maintenance of solar systems, with the goal of supporting customers in using renewable energy and reducing their energy costs.

Solar & Photovoltaics
View profile5(13)
Saffental AG Logo

Saffental AG 

Rickenbach Lu · Since 2016

Saffental AG carries out road and civil engineering works, including asphalt and concrete roads, paving, sewers and utility lines. The company also produces gravel and concrete and provides landfill and recycling services as well as skip and transport solutions.

Waste Management Industry
View profile4.7(13)
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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.
Per page
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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.