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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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9'016 companies found

PnP-Systems GmbH Logo

PnP-Systems GmbH 

Othmarsingen · Since 2022

The core activity of PnP-Systems GmbH is the development, manufacture and distribution of plug-and-play photovoltaic solutions and related components, such as mounting triangles, inverters, solar trackers and other electrical components for the solar energy industry. The company offers both individual components and complete systems and operates an online shop where customers can purchase products directly.

Solar & Photovoltaics
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Post CDR AG Logo

Post CDR AG 

Bern · Since 2022

Post CDR AG is a wholly owned subsidiary of Swiss Post focused on carbon dioxide removal and storage (CDR). It develops a portfolio of natural and technical CDR measures — for example sustainable forest management and biochar production — collaborates with external partners and is supported by an advisory board; the managing director is Philipp Mäder.

Sustainability Sector
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Powerhaus Gebäudetechnik AG Logo

Powerhaus Gebäudetechnik AG 

Bern · Since 2024

Solar & Photovoltaics
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PowerTec Solutions Sàrl Logo

PowerTec Solutions Sàrl 

Bulle · Since 2022

Sustainability SectorIT Consulting & Services
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Praxis Energia SA Logo

Praxis Energia SA 

Le Vaud · Since 2007

Sustainability Sector
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Predatec AG Logo

Predatec AG 

Wollerau · Since 2016

Technical Consulting & EngineeringWaste Management IndustryMechanical Engineering Industry
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Prime Energy PV Nord AG Logo

Prime Energy PV Nord AG 

Zurich · Since 2024

Solar & Photovoltaics
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Prime Energy Development AG Logo

Prime Energy Development AG 

Zurich · Since 2015

Technical Consulting & EngineeringSolar & Photovoltaics
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PROenergy Solar Solutions SAGL Logo

PROenergy Solar Solutions SAGL 

Bioggio · Since 2024

The core activity of PROnergy Solar Solutions S.a.g.l is the installation and provision of solutions in the field of renewable energy, particularly: installation of photovoltaic systems, installation of batteries for energy storage, and installation of charging stations for electric vehicles. The company offers these solutions to private individuals, businesses, and residential complexes, with the aim of reducing energy consumption and protecting the environment.

Solar & Photovoltaics
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ProENova Sàrl Logo

ProENova Sàrl 

Petit-Lancy · Since 2013

Sustainability Sector
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project1970 GmbH Logo

project1970 GmbH 

Schaffhausen · Since 2024

Management ConsultingSustainability Sector
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Projektservice Frank Trotzki Logo

Projektservice Frank Trotzki 

Möhlin · Since 2008

Technical Consulting & EngineeringConstruction & Project ManagementSustainability Sector
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Proteco GmbH Logo

Proteco GmbH 

Lucerne · Since 2018

The core activity of proteco GmbH is the reuse and reprocessing of batteries to conserve resources and protect the climate.

Sustainability Sector
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Pula Advisors AG Logo

Pula Advisors AG 

Mollis · Since 2014

Brane Afrika is a research and consulting company specializing in the development of sustainable solutions for Africa. The company's core activity is providing research results and strategic consulting services to companies, governments, and other organizations operating in Africa. The company focuses particularly on the themes of sustainable development, investment, and risk management. In contrast, Pula is an Agritech company specializing in the development of index-based insurance products for smallholder farmers in Africa. The company's core activity is the development and provision of insurance products that protect smallholder farmers from risks such as weather extremes and crop failures. The company works with governments, seed and fertilizer manufacturers, and lenders to bundle insurance products with agricultural inputs or loans.

Sustainability Sector
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PÜRPOSE Group SA Logo

PÜRPOSE Group SA 

Geneva · Since 2022

Pyrpose offers a platform where investors can invest in renewable energy projects in Switzerland. The company's core activity is to provide investors with access to a curated portfolio of climate projects that generate returns of 5-7% while having a positive impact on the environment. The projects include, among others, solar installations, wind farms, and building renovations to reduce their carbon footprint. Pyrpose acts as an intermediary between investors and project developers, offering a platform for investors to invest in these projects.

Sustainability Sector
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Purposelab GmbH Logo

Purposelab GmbH 

Olten · Since 2019

Sustainability Sector
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Purwatt Systems AG Logo

Purwatt Systems AG 

Küssnacht Am Rigi · Since 2011

Solar & Photovoltaics
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Purwatt AG Logo

Purwatt AG 

Küssnacht Am Rigi · Since 2012

Solar & Photovoltaics
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Qaptis Sàrl Logo

Qaptis Sàrl 

Lausanne · Since 2021

The core activity of Qaptis is the development of solutions for CO₂ capture and storage (CCUS), contributing to the fight against climate change.

Sustainability Sector
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Q-CONSULTING GmbH Logo

Q-CONSULTING GmbH 

Bubikon · Since 2024

Sustainability Sector
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Quality Life Environmental Technology SA Logo

Quality Life Environmental Technology SA 

Novazzano · Since 2008

Quality Life Environmental Technology SA supplies and distributes energy-efficient domestic hot water and thermal storage systems, including Sailer stratified accumulators and Friwasta-Plus instantaneous water heaters. The company provides project planning through turnkey installation, pre-assembled hydraulic cabinets, tools for resellers/installers (QualityQuote, QualityProject) and monitoring solutions, and represents related brands.

Sustainability SectorWater Supply
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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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RAYLIGHT SA Logo

RAYLIGHT SA 

Zug · Since 2022

Solar & PhotovoltaicsIT Consulting & ServicesTelecommunications
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RB enveloppe du bâtiment Sàrl Logo

RB enveloppe du bâtiment Sàrl 

Couvet · Since 2018

The core activity of RB Enveloppe du bâtiment Sàrl is the planning and execution of construction projects, particularly in the field of roof structures, facades and solar installations. The company offers specific solutions for pitched roofs, flat roofs, solar systems and ventilated facades.

Solar & Photovoltaics
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RD Voltec GmbH Logo

RD Voltec GmbH 

Ascona · Since 2023

Solar & PhotovoltaicsReal Estate Project Development
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Realta Biogas AG Logo

Realta Biogas AG 

Cazis · Since 2011

Waste Management Industry
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RECOLCA SA Logo

RECOLCA SA 

Lugano · Since 2013

RECOLCA SA provides commercial brokerage and consulting in industrial development and energy projects. Services include design, installation and management of renewable energy projects (such as photovoltaic systems), energy and commodity procurement, and related commercial facilitation.

Management ConsultingSolar & Photovoltaics
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Recyclage-du-verre.ch Sàrl Logo

Recyclage-du-verre.ch Sàrl 

Vermes · Since 2013

The core activity of Recyclage-du-verre.ch Sàrl is the development and manufacture of products that improve the glass recycling process, particularly through the design and construction of equipment for glass crushing and handling, such as the "Croqu'bouteilles" and "EasyCroc" products, which facilitate the crushing and collection of glass bottles.

Waste Management Industry
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Recyclage Mobile Sàrl Logo

Recyclage Mobile Sàrl 

Petit-Lancy · Since 2004

Waste Management Industry
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Regi Schweiz GmbH Logo

Regi Schweiz GmbH 

Regensdorf · Since 2007

Specialized Construction ActivitiesWaste Management IndustryLogistics & Transport Companies
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RENSHO Consulting Sàrl Logo

RENSHO Consulting Sàrl 

Muraz (Collombey) · Since 2021

The core activity of Rensho is the promotion and support of sustainable mobility, in particular active mobility such as cycling, as well as collective and individual means of transport that contribute to reducing CO2 emissions.

Sustainability Sector
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Reoc Recycling und Entsorgung GmbH Logo

Reoc Recycling und Entsorgung GmbH 

Solothurn · Since 1994

Waste Management Industry
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Reos Partners Europe Sàrl Logo

Reos Partners Europe Sàrl 

Geneva · Since 2016

Sustainability Sector
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RESLIDES GmbH Logo

RESLIDES GmbH 

Zurich · Since 2021

The core activity of RESLIDES GmbH is the development, manufacture and marketing of sandals characterized by their modular design, long-lasting design, easy repair and recyclability. The company offers a platform where customers can configure and order their own sandals, emphasizing the sustainability and environmental friendliness of its products.

Sustainability Sector
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ResponsiBiz GmbH Logo

ResponsiBiz GmbH 

Richterswil · Since 2020

The core activity of ResponsiBiz is to advise institutional companies and organizations in the field of sustainable development, particularly in the African region. The company serves as a knowledge center and think tank for sustainable development and transformational leadership. It supports customers in developing strategies and solutions for a sustainable future and promotes the exchange of knowledge and expertise between different sectors.

Sustainability Sector
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RethinkResource GmbH Logo

RethinkResource GmbH 

Zurich · Since 2016

The core activity of RethinkResource is to support companies in developing and implementing sustainable solutions and upcycling innovations, particularly in the area of utilizing production side streams and reducing waste. The company offers consulting, strategy development and project accompaniment to help companies improve their environmental balance while simultaneously strengthening their competitiveness.

Sustainability Sector
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reutimann permakultur lösungen Logo

reutimann permakultur lösungen 

Bern · Since 2019

The core activity of the company 'Permakultur Lösungen' is the development and implementation of simple and sustainable solutions based on permaculture principles in the areas of home, nature and IT. This includes in particular the promotion of permaculture agriculture and the implementation of research projects in this field.

Sustainability Sector
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Rhenus Green Energy International AG Logo

Rhenus Green Energy International AG 

Basel · Since 2023

Energy Suppliers
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Richon ferblanterie-couverture Sàrl Logo

Richon ferblanterie-couverture Sàrl 

Farvagny-Le-Grand · Since 2006

The core activity of Richon Ferblanterie & Couvertures is the execution of works in the field of roofing, including sheet metal work, roofing, skylights, solar installations and maintenance (roof maintenance and repair).

Solar & Photovoltaics
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Riessle Energiespartechnik Logo

Riessle Energiespartechnik 

Laufenburg · Since 2011

The core activity of Riessle Energiespartechnik includes the planning, installation and maintenance of heating, plumbing and solar systems, as well as the execution of renovation, repair and conversion work in the field of building technology.

Plumbing & Building ServicesSolar & Photovoltaics
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RION Energie GmbH Logo

RION Energie GmbH 

Egliswil · Since 2021

The core activity of RION Energie GmbH is the development and provision of digital solutions for energy trading, particularly for the electricity market. Specifically, the company offers products and services such as the HPFC (Hourly Price Forward Curve), which provides a reliable price forecast for electricity suppliers, traders and consumers.

Energy SuppliersSoftware Development
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Rischer Energie-Genossenschaft Logo

Rischer Energie-Genossenschaft 

Rotkreuz · Since 2012

The company is a public administrative unit that provides various services and tasks for the canton of Zug. The core activities include: Administration and Finance: budgeting, invoicing of services and procurement; Law: contract development, evaluation and consulting; Economy and Labor: commercial register, company search, work permit, working conditions and location promotion; Health and Social Affairs: consumer protection, food control, addiction counseling, care initiative and statistics; Emergency and Rescue Services: behavior in emergency situations, diploma training and courses. The company appears to play a central role in the administration and organization of the canton of Zug and offers a wide range of services for the population and businesses.

Energy Suppliers
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Rizzi Giorgio Sagl Logo

Rizzi Giorgio Sagl 

Cadenazzo · Since 2006

Rizzi Giorgio Sagl trades new and used tyres and provides recycling and environmentally compliant disposal services for tyres that are no longer reusable.

Waste Management Industry
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RK - Energie GmbH Logo

RK - Energie GmbH 

Nesslau · Since 2024

The core activity of Rk Solar is the planning and implementation of photovoltaic projects (PV self-construction).

Solar & Photovoltaics
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rmsolar Swiss GmbH Logo

rmsolar Swiss GmbH 

Tägerwilen · Since 2022

The core activity of rmsolar includes consulting, planning and installation of solutions in the field of renewable energies, in particular: Photovoltaics (solar energy), E-mobility (charging infrastructure for electric vehicles) and Battery storage (storage solutions for electrical energy). The company also offers service and consulting services for these areas.

Solar & Photovoltaics
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Enevo Services GmbH Logo

Enevo Services GmbH 

Sennhof (Winterthur) · Since 2023

The core activity of RM Solartech GmbH is the planning, implementation and maintenance of photovoltaic systems, as well as the provision of comprehensive solutions in the field of renewable energies, including energy storage, e-mobility and contracting, for business and private customers.

Solar & Photovoltaics
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Roner & Partner Scrl Logo

Roner & Partner Scrl 

Zernez · Since 2009

Roner & Partner Scrl is an electrical engineering firm providing planning, installation and repair of electrical systems as well as testing and maintenance of electrical equipment. Its services also include supply and installation of low-voltage (UKV) cabling, telephone system installation (Sunrise and Swisscom partner), sale of electronic appliances and photovoltaic (PV) systems.

Electrical Planning & InstallationSolar & Photovoltaics
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Room Solutions AG Logo

Room Solutions AG 

Dintikon · Since 2022

The core activity of Room Solutions AG is the development, manufacture and distribution of products for room concepts and ambiance, particularly in the areas of acoustics and climate control. Specifically, this includes the manufacture and distribution of own-brand products such as eecoustic (acoustic solutions) and Clima*Panel (climate-neutral air conditioning systems).

Sustainability Sector
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Rotard Group AG Logo

Rotard Group AG 

Rorschach · Since 2022

Solar & PhotovoltaicsHolding Companies
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Round Table on Responsible Soy Association (RTRS) Logo

Round Table on Responsible Soy Association (RTRS) 

Zurich · Since 2007

The company's core activity is the promotion and certification of responsible soy production and trade. The company provides a platform for certifying soy producers who meet certain standards for environmentally friendly and socially responsible production. It also supports the trade of certified soy and offers tools and resources for companies that want to buy and sell responsible soy products.

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.