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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,089 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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IndustryEnergy & Environment
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9'017 companies found

Genossinnen- und Genossenschaft Oekoladen Logo

Genossinnen- und Genossenschaft Oekoladen 

Basel · Since 1995

The core activity of Oekoladen Basel is the trade in ecological and sustainable products, particularly in the areas of food, household goods, cosmetics and care products, as well as consulting and sales of products for babies and children.

Sustainability Sector
View profile4.7(26)
Glattal Installationen AG, Elektro + Telekommunikation Logo

Glattal Installationen AG, Elektro + Telekommunikation 

Glattbrugg · Since 1999

The core activity of Glattal Installationen AG is the planning, installation and maintenance of electrical systems, particularly in the field of building technology and sustainable energy, as well as the provision of services in the areas of high-voltage and telematics.

Electrical Planning & InstallationSolar & PhotovoltaicsTelecommunications
View profile4.4(26)
Heinz Schmid AG Elektro-Anlagen Logo

Heinz Schmid AG Elektro-Anlagen 

Winterthur · Since 1980

The core activity of Heinz Schmid AG is the provision of services in the field of electrical engineering, particularly in the following specific areas: electrical installation, photovoltaics (installation of solar systems), charging stations (for electric vehicles), e-mobility (electromobility), and fiber optics (installation of fiber optic cables). The company offers these services as an electrician in Winterthur and has specialized in the installation and maintenance of electrical systems.

Solar & Photovoltaics
View profile4.7(26)
Montalta Umwelt + Recycling AG Logo

Montalta Umwelt + Recycling AG 

Rueun · Since 1991

MM Aufbereitung und Recycling AG accepts, sorts and processes waste and recyclable materials from households and commercial/industrial customers, provides environmentally compliant disposal and produces recycled construction materials for reuse in the material cycle.

Energy Suppliers
View profile4.7(26)
Retripa Crissier SA Logo

Retripa Crissier SA 

Crissier · Since 2005

Retripa Crissier SA is a waste management and recycling company offering collection, sorting, recycling and valorization services for recoverable materials. The company provides logistics and container solutions across the value chain—from collection to the sale of secondary raw materials—and holds certifications including EcoEntreprise “Excellence” and ISO 9001, ISO 14001 and ISO 45001; confidential document destruction follows DIN 66399 P-4.

Waste Management Industry
View profile3.7(26)
RETRIPA VALAIS SA Logo

RETRIPA VALAIS SA 

Monthey · Since 2001

RETRIPA VALAIS SA provides collection, transport, sorting and recovery services for waste and recyclable materials. The company supplies containers and compaction equipment, operates sorting and transfer sites, and offers waste-management and recycling solutions for municipalities and businesses.

Waste Management Industry
View profile3.7(26)
Retripa SA Logo

Retripa SA 

Vernier · Since 1991

Retripa SA provides collection, sorting, recycling and valorization services for waste, along with containers and logistical solutions for municipal and commercial clients, managing the recycling chain from collection to sale of secondary raw materials.

Waste Management Industry
View profile3.7(26)
Scherrer Metec AG Logo

Scherrer Metec AG 

Zurich · Since 2004

The core activity of Scherrer Metec AG encompasses the planning, design and execution of integral building envelopes, including: metal roofing (e.g. restoration of historic buildings, modern steep and flat roofs, stairs, bicycle stands), metal construction (e.g. facades, doors, windows), timber construction (e.g. roof trusses, wall and ceiling structures), photovoltaics (e.g. planning and installation of solar systems), roof services (e.g. maintenance and repair of roofs), and radiation and sound protection (e.g. planning and implementation of protection measures for industrial plants and medical facilities). The company offers these services from a single source and positions itself as a comprehensive provider of roof and facade solutions.

Metal ConstructionSolar & Photovoltaics
View profile4.2(26)
Solarix GmbH Logo

Solarix GmbH 

Gerlafingen · Since 2023

The core activity of Solarix AG is the planning, consulting, installation and maintenance of solar systems, as well as the trade in photovoltaic components and storage solutions. The company also offers services in the field of Smart Energy and supports customers in using solar energy to reduce their electricity costs and think sustainably.

Solar & Photovoltaics
View profile5(26)
StWZ Strom AG Logo

StWZ Strom AG 

Zofingen · Since 2001

StWZ Strom AG supplies electricity and related energy services, including retail electricity products, feed-in remuneration for solar power and Smart Meter solutions. The company also provides online customer services (billing, meter readings, customer portal) and advisory services on self-consumption and photovoltaic systems.

Energy Suppliers
View profile4.2(26)
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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.