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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

rezolar GmbH Logo

rezolar GmbH 

Ringgenberg Be · Since 2022

The core activity of the company is the management and administration of the municipality of Ringgenberg, including the provision of services such as education, social welfare, waste management, commerce and leisure activities. It is a public administrative unit responsible for the concerns of the municipality and its citizens.

Solar & Photovoltaics
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Rhätica Solar Solution AG Logo

Rhätica Solar Solution AG 

Malans Gr · Since 2024

Rhätica Solar Solution AG is a manufacturer-independent system provider for alpine large-scale solar plants with capacities from 5 to 50 MWp. The company provides planning, optimisation, construction and operation of alpine solar installations, along with consulting, solution concepts, cost optimisation, implementation and lifecycle support, and offers the modular mounting system “RSS Grischun Optim II” tailored to alpine conditions.

Technical Consulting & EngineeringSolar & Photovoltaics
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Rhea Swiss SA Logo

Rhea Swiss SA 

Baar · Since 2023

The core activity of Rhea Swiss SA is to provide services and solutions in the field of sustainable energy production and use. Specifically, this includes: Surplus Inventory Trading (trading of surplus stocks), Wind Turbine Recycling (recycling of wind turbines), and Large Project Sourcing (procurement of large projects). The company positions itself as an interface between sustainability, international trade, and energy solutions, and aims to revolutionize the energy industry through sustainable practices and international partnerships.

Sustainability Sector
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richard arnold consulting Logo

richard arnold consulting 

Zug · Since 2021

The core activity of Richard Arnold Consulting is the consulting and implementation of sustainable energy solutions for property owners, particularly in the field of renewable energies, smart home systems and energy efficiency. This includes services such as energy consulting, system analysis, planning and implementation of photovoltaic systems, rainwater retention and treatment, as well as the conception and implementation of smart home solutions.

Solar & Photovoltaics
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Ricomat SA Logo

Ricomat SA 

Sigirino · Since 2024

Ricomat SA operates a recycling centre that processes excavation, demolition and roadwork materials by dry treatment, including crushing, screening and storage. It produces recycled inert aggregates for construction use and provides acceptance, recycling and resale services for these materials.

Waste Management Industry
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Ricoter Erdaufbereitung AG Logo

Ricoter Erdaufbereitung AG 

Aarberg · Since 1981

The company operates in the garden and landscape industry, with a focus on plant production, garden and landscape construction, as well as landscape architecture. It also offers services and products for urban gardening, home and hobby, as well as terrace and balcony.

Waste Management Industry
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Rimac Technology SA Logo

Rimac Technology SA 

Baar · Since 2015

The core activity of Rimac Technology SA includes the design, construction, marketing, rental and technical assistance of machines and systems for the treatment of materials and waste, as well as the provision of services in the field of environmental consulting and engineering.

Waste Management IndustryMechanical Engineering Industry
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RINO Electronics AG Logo

RINO Electronics AG 

Nürensdorf · Since 2003

The core activity of RINO Electronics AG is the development and implementation of innovative solutions for sustainable energy and resource management. This includes the development of products and systems for efficient energy use, such as ice storage, battery storage and energy-saving technologies. The company focuses on developing alternative energy solutions that are efficiently implemented and lead to minimal operating costs, with the goal of promoting sustainability and longevity.

Solar & PhotovoltaicsElectrical IndustrySoftware Development
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RIVE CLAIRE Fashion GmbH Logo

RIVE CLAIRE Fashion GmbH 

Trasadingen · Since 2019

The core activity of RIVE CLAIRE is the manufacture and sale of vegan and sustainable handbags, jewelry and engagement items, made from carefully selected, ethical and environmentally friendly materials.

Sustainability Sector
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RLG Systems Schweiz GmbH Logo

RLG Systems Schweiz GmbH 

Bottighofen · Since 2003

The core activity of RLG is to advise and support companies in the implementation of environmental and sustainability strategies, particularly in the areas of product responsibility and recycling. This includes services such as: Environmental compliance and consulting, Development of take-back systems for products and packaging, Data management and analysis for environmental and sustainability goals, Consulting on the implementation of circular economy strategies, Support in fulfilling legal requirements in the field of environmental and sustainability. RLG helps companies to minimize their environmental impact and improve their sustainability.

Sustainability Sector
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RLK Engineering GmbH Logo

RLK Engineering GmbH 

Roggwil Tg · Since 2011

Waste Management Industry
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RMontagetechnik GmbH Logo

RMontagetechnik GmbH 

Lucerne · Since 2023

The core activity of RMontagetechnik is the provision of assembly and service services in various areas, particularly: chimney construction and renovation, installation of solar systems, core drilling, ventilation cleaning, vehicle installations and fittings, as well as welding and assembly work. The company also offers special manufacturing and consulting services in these areas.

Solar & Photovoltaics
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Roal GmbH Logo

Roal GmbH 

Winterthur · Since 1994

The company's core activity is the development, production and trade of systems for the use of rainwater (RWN) as well as the planning and distribution of automatic irrigation systems.

Sustainability Sector
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Robert König AG Logo

Robert König AG 

Kriessern · Since 1948

The core activity of Robert König AG is recycling and inert waste disposal, i.e. the disposal and utilization of waste and the storage of inert materials.

Waste Management Industry
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ROCHAT SOLAIRE SA Logo

ROCHAT SOLAIRE SA 

St-Légier-La Chiésaz · Since 2010

The core activity of Rochat Solaire SA is consulting, investing and operating photovoltaic systems, particularly in the Swiss Romandy region. The company offers services such as project development, optimization, tendering, construction supervision and performance control, and invests in the construction and operation of photovoltaic systems. It also provides financing options for investors and trades in Green Certificates (Guarantees of Origin).

Solar & Photovoltaics
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ROCH Business Bridge SA Logo

ROCH Business Bridge SA 

Geneva · Since 2021

ROCH Business Bridge SA is a consultancy that advises companies seeking to operate on the Swiss or Romanian market. Its services include business administration and development (company formation, PR & marketing advisory, compliance and quality management certification, customer and supplier advisory, finance and human resources), digital workflow tools (iWMP) and environmental services such as ESG advisory, waste management/trading/recycling and legal counsel.

Waste Management Industry
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Roegen Centre for Sustainability GmbH Logo

Roegen Centre for Sustainability GmbH 

Zurich · Since 2022

Sustainability Sector
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RO Ermatinger Conseils Sàrl Logo

RO Ermatinger Conseils Sàrl 

Courtelary · Since 2018

The core activity of RoConseils is to provide consulting services in the field of ecological urban technology and waste management, particularly in the Swiss Romandy region. The company offers independent consulting services without selling or trading products, and focuses on optimal resource, waste and recycling management in the sense of sustainable development.

Sustainability Sector
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Rohbrett Müller Logo

Rohbrett Müller 

Zuzgen · Since 2018

Rohbrett Müller offers hand-carved skateboards, workshops on skateboard making and custom design, and permaculture-related projects. The business also operates a shop and shares information about nursery and garden projects.

Sustainability Sector
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Rohner Haustechnik GmbH Logo

Rohner Haustechnik GmbH 

Wohlen Ag · Since 2010

The core activity of Rohner Haustechnik GmbH is the installation, maintenance and repair of building technology systems, in particular: sanitary facilities, heating systems, solar systems, ventilation systems and heat pumps. The company offers these services to private and business customers in the canton of Aargau, especially in Wohlen and the surrounding municipalities.

Plumbing & Building ServicesSolar & Photovoltaics
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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.