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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

Q-CONSULTING GmbH Logo

Q-CONSULTING GmbH 

Bubikon · Since 2024

Sustainability Sector
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Q.Sol GmbH Logo

Q.Sol GmbH 

Windlach · Since 2023

The core activity of Q.Sol GmbH is the conception, implementation and economic operation of solar systems on the roofs of properties. The company offers solar contracting and roof rental, where it takes over the financing, construction and maintenance of the solar systems and offers property owners a fixed electricity price or an annual roof rental fee.

Solar & Photovoltaics
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Quambio SA Logo

Quambio SA 

Neuchâtel · Since 2019

The core activity of Quambio is to support companies in achieving their sustainability goals, particularly through the development of strategies to reduce CO2 emissions and promote soft mobility. Quambio also offers tools and services to involve employees in the sustainability process and create a positive corporate climate.

Sustainability Sector
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Quantum Kraftwerke AG Logo

Quantum Kraftwerke AG 

Horw · Since 2013

The core activity of QKW (Quantum Kraftwerke AG) is the planning, installation and maintenance of sustainable energy supply systems, particularly solar systems, energy storage systems, consumption control systems and charging points for electromobility, specifically for property owners with multi-family properties. The company offers a comprehensive solution that ranges from consulting and planning to installation and maintenance of the systems, with the goal of enabling a sustainable and environmentally friendly energy supply.

Solar & Photovoltaics
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Quatra Switzerland AG Logo

Quatra Switzerland AG 

Cham · Since 2022

The core activity of Quatra is the collection, transportation and recycling of used edible oils and fats, particularly frying fats, from the catering and food industries.

Waste Management Industry
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Quellwasserversorgung Brunnen AG Logo

Quellwasserversorgung Brunnen AG 

Brunnen

The core activity of Quellwasserversorgung Brunnen AG is to supply households and businesses with drinking water, fire extinguishing water and service water. To this end, the company operates a network of springs, groundwater pumping stations and pipelines to provide high-quality water in sufficient quantities.

Water Supply
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Quimbaya AG Logo

Quimbaya AG 

Allschwil · Since 2021

The core activity of Quimbaya is the trade and distribution of specialty coffee and bean-to-bar chocolate, sourced directly from small farmers in Colombia. The company places a strong focus on sustainability, social responsibility, and fair trade, by negotiating prices directly with producers and exceeding the Fairtrade price. Quimbaya offers its products to both end-consumers and business customers, operating an online shop and partnerships with local companies.

Sustainability Sector
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Quintsolar AG Logo

Quintsolar AG 

Wallbach · Since 2023

Quintsolar AG provides photovoltaic solutions, offering consulting, system design, installation and maintenance for solar PV systems and battery storage. The website details technical components (modules, inverters, storage), warranty options and the project process from quotation to commissioning.

Technical Consulting & EngineeringElectrical Planning & InstallationSolar & Photovoltaics
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QUNDQPUNKT GMBH Logo

QUNDQPUNKT GMBH 

Altdorf Ur · Since 2011

QUNDQPUNKT GMBH is a building-technology company providing services in building and energy systems as well as project management for technical building projects.

Solar & Photovoltaics
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radilog gmbh Logo

radilog gmbh 

Nottwil · Since 2020

The core activity of radilog gmbh is the provision of services in the field of disposal and transportation of medical equipment and facilities, in particular: * Dismantling and disposal of X-ray equipment and medical devices * Professional disposal of old X-ray films * Clearance of practice rooms * Transportation of medical equipment within Switzerland. Thus, the company offers specialized services for the medical industry and healthcare sector.

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.