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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

ZARODEM SA Logo

ZARODEM SA 

Taverne · Since 2018

The core activity of Zarodem company primarily involves the trade and recycling of metals, particularly non-ferrous metals such as copper, brass and aluminium. This includes: * Dismantling and demolition of industrial plants and buildings * Collection and processing of metal waste * Trading in metals and recycled products * Financial services and investments in metals * Storage and management of metal stocks The company offers its customers a comprehensive solution for the recovery of metal waste and the procurement of recycled metals.

Waste Management Industry
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Zehnder Elektrotechnik AG Logo

Zehnder Elektrotechnik AG 

Eriswil · Since 2016

The core activity of Zehnder Elektrotechnik AG includes electrical installations, renewable energies, service and repairs in the field of electrical engineering, as well as the sale of household appliances and multimedia products.

Electrical Planning & InstallationSolar & Photovoltaics
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Zelsius AG Logo

Zelsius AG 

Root D4 · Since 2024

Zelsius AG develops software and a CO2 calculator that enables Swiss SMEs to record emissions and produce corporate and product carbon footprints in accordance with recognised standards.

Sustainability SectorSoftware Development
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ZEMALE AG Logo

ZEMALE AG 

Einigen · Since 2022

The core activity of ZEMALE AG is the development and marketing of an innovative ashtray integrated into cigarette packaging, aimed at solving the environmental problem of discarded cigarette butts.

Sustainability Sector
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ZENDRA AG Logo

ZENDRA AG 

Chur · Since 2024

The core activity of ZENDRA AG is the development and implementation of photovoltaic systems, particularly for alpine use. This includes the planning, design and dimensioning of PV systems, including substructures, PV modules and DC electrical systems. The company also offers static solutions, digitalization services and consulting in the field of photovoltaics.

Solar & Photovoltaics
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Zenergia SA Logo

Zenergia SA 

Glattbrugg · Since 2008

Sustainability Sector
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Zengaffinen Ressourcen AG Logo

Zengaffinen Ressourcen AG 

Steg Vs · Since 2016

Zengaffinen Ressourcen AG is listed as one of the companies within the Zengaffinen Unternehmungen and appears under the group’s construction‑related business units. The Zengaffinen group provides services in building and civil engineering and in areas such as landfill management, waste disposal and recycling.

Waste Management Industry
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Zentralwärme Ost AG Logo

Zentralwärme Ost AG 

Schindellegi · Since 2021

Zentralwärme Ost AG is an energy supplier specializing in district heating solutions using renewable biomass (log wood, pellets or wood chips), offering consulting, system planning, installation, maintenance and financing services for heating systems.

Energy Suppliers
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Zenyt Energie AG Logo

Zenyt Energie AG 

Buchs Sg · Since 2023

Zenyt Energie AG designs, plans and installs photovoltaic (PV) systems and provides consultation, installation, maintenance and cleaning services, including energy-control solutions to optimize self-consumption.

Solar & Photovoltaics
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Zeppelin JLH AG Logo

Zeppelin JLH AG 

Bottmingen · Since 2020

The core activity of Zeppelin JLH AG is the execution of dismantling and demolition work in industrial, commercial and residential buildings, in particular: dismantling and demolition of steel structures, tank facilities, heating, ventilation and air conditioning systems as well as chemical plants; disposal of contaminated materials, including PCB-containing tanks, tar insulation and chemical coatings; tank cleaning and disposal, including pumping and cleaning of oil tanks; installation of new facilities under difficult conditions; and professional disposal of hazardous substances and deregistration with authorities and water protection agency.

Waste Management Industry
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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.