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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

Roxpay AG Logo

Roxpay AG 

Wollerau · Since 2021

The core activity of Roxpay AG is to provide pay-per-use solutions for companies in the clean-tech industry, particularly for small and medium-sized enterprises (SMEs). These solutions enable companies to access new technologies without having to make high upfront investments, offering a flexible and scalable alternative to traditional financing models. Roxpay AG focuses on developing data-driven solutions that enable companies to increase their production and revenue while simultaneously improving their environmental footprint.

Sustainability Sector
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R. Pfeiffer Heizungen GmbH Logo

R. Pfeiffer Heizungen GmbH 

Schaffhausen · Since 2013

The core activity of R. Pfeiffer Heizungen GmbH is the planning, installation and commissioning of heating systems of all kinds, including oil, gas, wood, solar and heat pump heating systems, as well as the execution of pipe installations and official measurements.

Solar & Photovoltaics
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R. Rageth GmbH Logo

R. Rageth GmbH 

Scharans · Since 2013

The core activity of R. Rageth GmbH is the planning, consulting and execution of sanitary and heating systems, including related services such as maintenance, servicing and repair.

Solar & Photovoltaics
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R.R. Kanalreinigung GmbH Logo

R.R. Kanalreinigung GmbH 

Rickenbach B. Schwyz · Since 2017

R.R. Kanalreinigung GmbH carries out sewer and pipe cleaning operations and provides CCTV (Kanal‑TV) inspections and sewer rehabilitation services. Offerings include maintenance flushing, unclogging and drain cleaning for single‑family and multi‑family homes as well as commercial properties.

Waste Management Industry
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R. Rudin Haustechnik GmbH Logo

R. Rudin Haustechnik GmbH 

Grellingen · Since 2014

The company's core activity encompasses the provision of services in the field of building technology, specifically: * Roofing and sheet metal work (e.g. gutters, coverings, claddings) * Flat roof work (e.g. bituminous sealing, rubber roofs) * Sanitary work (e.g. repairs, conversions, installations) * Photovoltaic and solar systems (e.g. planning, installation, maintenance) * Lightning protection work * Roof renovations and refurbishments * Insulation work * Façade cladding The company thus offers a wide range of services in the field of building technology and building services.

Solar & Photovoltaics
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RS Haustechnik GmbH Logo

RS Haustechnik GmbH 

Sattel · Since 2011

RS Haustechnik GmbH is a building services company specializing in the installation of underfloor heating and floor insulation, and in the assembly of photovoltaic systems and solar collectors.

Sealing & InsulationPlumbing & Building ServicesSolar & Photovoltaics
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rSupply Solutions AG Logo

rSupply Solutions AG 

Rotkreuz · Since 2014

The core activity of rSupply Solutions AG is the development and production of high-quality packaging materials made from 100% recycled plastic (post-consumer recyclate). The company focuses on reusing plastic waste and transforming it into new, high-quality packaging materials that meet the quality requirements of market leaders in Europe. Through its activities, rSupply supports the implementation of a circular economy and enables companies to produce their packaging from sustainable, recycled plastics.

Waste Management IndustryPlastics Industry
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RSV United Energy AG Logo

RSV United Energy AG 

Buochs · Since 2007

The core activity of RSV UNITED ENERGY AG encompasses the development and implementation of sustainable solutions in the following areas: energy generation and storage, water supply and recycling, food production and supply, soil and environmental protection, and emission-free recycling of waste materials. The company focuses on creating long-term and sustainable solutions that are independent of short-term market fluctuations and simultaneously create jobs.

Sustainability Sector
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Rubbertec AG Logo

Rubbertec AG 

Staffelbach · Since 2002

Rubbertec AG handles disposal of end-of-life tyres, offering collection services and providing collection containers and covered skips for rubber waste. It processes the recovered rubber into fuel for the cement industry and holds ISO 9001 and ISO 14001 certifications.

Waste Management Industry
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Rucksackschule Logo

Rucksackschule 

Zurich · Since 1997

The core activity of Serendipities GmbH is the conception and implementation of educational and nature experience offers for kindergartens, schools, homeschooling families, young people and clubs/private companies, particularly in the field of nature pedagogy and sustainable development.

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.