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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

miloni solar ag Logo

miloni solar ag 

Hausen Ag · Since 2011

Architecture FirmsEnergy SuppliersSolar & Photovoltaics
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Mithras Technology AG Logo

Mithras Technology AG 

Chur · Since 2018

Solar & Photovoltaics
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Morphose.earth Sàrl Logo

Morphose.earth Sàrl 

Môtiers Ne · Since 2023

Sustainability Sector
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Müllhaupt + Co, Kanalreinigung Logo

Müllhaupt + Co, Kanalreinigung 

Dürnten · Since 1989

Waste Management Industry
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mygrid AG Logo

mygrid AG 

Brugg Ag · Since 2023

The core activity of mygrid is the development and provision of charging solutions for electric vehicles, particularly for companies, fleets and residential properties. This includes the planning, implementation and operation of charging stations as well as the management and billing of charging processes. The company also offers an app for a simple charging experience and supports the integration of electromobility and solar energy into the energy system.

Solar & PhotovoltaicsSoftware Development
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MYIA SA Logo

MYIA SA 

Biasca · Since 2019

The core activity of Myia is the breeding of Black Soldier Flies for the bio-conversion of food waste into sustainable animal feed, feed and fertilizers.

Sustainability Sector
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MY TRIBE Sàrl Logo

MY TRIBE Sàrl 

Crans Vd · Since 2022

The company MY TRIBE is engaged in the purchase, sale and reuse of used jewelry. They offer a service that takes over the entire process from appraisal and cleaning to the sale of jewelry pieces. The goal is to dynamize the second-hand jewelry industry in Switzerland and promote sustainable consumption habits.

Sustainability Sector
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NAFTA-GAZ TRADING LTD Logo

NAFTA-GAZ TRADING LTD 

Hünenberg · Since 2003

The core activity of NAFTA-GAZ TRADING is energy trading and consulting, particularly in the field of natural gas and electricity trading in Central and Eastern Europe. This includes: trading in natural gas and electricity on exchanges and through bilateral contracts; providing consulting services in the field of energy supply, including market analysis, regulatory compliance, risk management, and development of customized energy concepts; and utilizing natural gas storage facilities in Eastern Europe to ensure a reliable and efficient energy supply.

Energy SuppliersWholesale - Fuels & Petroleum Products
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Nature Positive Group AG Logo

Nature Positive Group AG 

Zug · Since 2024

Management ConsultingSustainability SectorPrivate Equity & Venture Capital
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NaturVogel GmbH Logo

NaturVogel GmbH 

Walenstadt · Since 2022

Technical Consulting & EngineeringSustainability Sector
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naturundraum GmbH Logo

naturundraum GmbH 

Nidau · Since 2018

The core activity of naturundraum GmbH is the planning and creation of natural habitats, permaculture and climate gardens, as well as sustainable area development. In addition, the company also offers services in the fields of interior architecture, building biology and furniture design.

Sustainability Sector
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Navitas Consilium SA Logo

Navitas Consilium SA 

Martigny · Since 2013

Navitas Consilium SA develops software and provides consulting services for energy and climate strategies. Its offerings include the PlanETer product suite for territorial energy data structuring, balance and scenario calculations, interactive dashboards and web maps, together with services such as territorial energy planning, carbon accounting and climate plans, infrastructure impact studies, public lighting planning and the definition of monitoring indicators.

Sustainability Sector
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Nesslisboden-Alpen-Genossenschaft Logo

Nesslisboden-Alpen-Genossenschaft 

Huttwil

The core activity of Alpen Genossenschaft Nesslisboden is the leasing and management of alpine pastures for livestock farming, particularly for animal husbandry.

Sustainability Sector
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netozero GmbH Logo

netozero GmbH 

Wermatswil · Since 2018

The core activity of NetoZero is the planning, delivery and installation of sustainable energy and solar solutions, including consulting, planning and implementation of solar systems, as well as support in applying for government subsidies. Additionally, the company also offers services in the field of building insulation and roof renovation.

Solar & Photovoltaics
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Netra Power SA Logo

Netra Power SA 

Geneva · Since 2023

Solar & Photovoltaics
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NetSolar GmbH Logo

NetSolar GmbH 

Schalunen · Since 2011

The core activity of NetSolar is the planning, consulting and installation of solar systems for private individuals and companies, with the goal of revolutionizing the energy landscape through the use of photovoltaics and promoting a sustainable energy future.

Solar & Photovoltaics
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Netto-Null.swiss AG Logo

Netto-Null.swiss AG 

Frutigen · Since 2021

Technical Consulting & EngineeringSustainability SectorReal Estate Project Development
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Netzanstalt Zollikon Logo

Netzanstalt Zollikon 

Zollikon · Since 2009

Energy Suppliers
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neustark Infra AG Logo

neustark Infra AG 

Bern · Since 2022

Energy Suppliers
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NEWINCYCLE GmbH Logo

NEWINCYCLE GmbH 

Baar · Since 2023

Sustainability SectorFinancial Services
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NIHMA GmbH Logo

NIHMA GmbH 

Arnegg · Since 2016

NIHMA GmbH provides drain cleaning, building cleaning and property caretaking services, including high-pressure drain cleaning and camera-based sewer inspections, construction and industrial cleaning, and maintenance tasks such as garden care and winter service.

Waste Management Industry
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Team9 AG Logo

Team9 AG 

Arbon · Since 2024

Electrical Planning & InstallationSolar & Photovoltaics
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Noico AG Logo

Noico AG 

Zug · Since 2022

The core activity of NOICO AG is investing in and operating renewable energy systems, particularly solar energy and wind power plants. The company develops, builds and maintains solar parks, offers services to landowners and trades in solar modules and equipment.

Solar & Photovoltaics
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Nord Stream 2 AG Logo

Nord Stream 2 AG 

Steinhausen · Since 2015

Energy Suppliers
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Nussbaumer Bedachungen AG Logo

Nussbaumer Bedachungen AG 

Menzingen · Since 2011

Nussbaumer Bedachungen AG carries out roofing and facade work, including pitched and flat roofs, sheet-metal (spengler) work, waterproofing and roof maintenance. The company also installs photovoltaic systems, provides lightning protection, scaffolding and height-safety solutions, and offers vocational training.

RoofingSheet Metal WorkSolar & Photovoltaics
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NVALUE AG Logo

NVALUE AG 

Schindellegi · Since 2007

The core activity of Nvalue is to provide solutions for renewable energy, energy efficiency and reduction of greenhouse gas emissions. In particular, the company focuses on trading energy attribute certificates (EACs), guarantees of origin for renewable energy, biogas certificates, carbon credits and other climate-related solutions. The company supports its customers in achieving their climate goals by providing tailored solutions and services.

Technical Consulting & EngineeringEnergy Suppliers
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Nyffenegger Solar GmbH Logo

Nyffenegger Solar GmbH 

Derendingen · Since 2016

The core activity of Nyffenegger Solar GmbH is the planning, consulting, installation and commissioning of solar systems for various customer groups, including single-family homes, multi-family homes and industrial and commercial buildings. The company offers customized solar solutions, including traditional solar systems and emergency power-capable systems, and advises customers on the selection and implementation of photovoltaic systems.

Solar & Photovoltaics
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Oekoplan Ingenieure AG Logo

Oekoplan Ingenieure AG 

Zurich · Since 1996

Technical Consulting & EngineeringSustainability Sector
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Recycling-Coach AG Logo

Recycling-Coach AG 

Thal · Since 2010

The core activity of OEKOTECH RECO is the collection and analysis of data in the field of waste management and recycling, particularly through the implementation of basket analyses. These analyses serve as a basis for optimizing products and production, controlling distribution and service, as well as conducting trend research and forecasts.

Sustainability Sector
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Ökobüro Müller Logo

Ökobüro Müller 

Bremgarten Ag · Since 2019

Sustainability Sector
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Ökopower AG Logo

Ökopower AG 

Ottenbach · Since 2004

Energy SuppliersWaste Management Industry
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Oligotech Häfliger Logo

Oligotech Häfliger 

Péry · Since 2017

The core activity of Oligotech is the development and marketing of water purification technologies, particularly chlorine-free water ionization processes for swimming pools, spas and drinking water systems. The company offers products and solutions based on oligodynamics, a technology that utilizes the damaging effect of metal cations on living organisms to clean and disinfect water.

Technical Consulting & EngineeringSolar & Photovoltaics
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Olivier Brulhart SA Ferblanterie-Couverture-Solaire Logo

Olivier Brulhart SA Ferblanterie-Couverture-Solaire 

Grolley · Since 2021

Solar & Photovoltaics
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Olof Kühnholz Umweltberatung GmbH Logo

Olof Kühnholz Umweltberatung GmbH 

Zurich · Since 2015

Technical Consulting & EngineeringSustainability Sector
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Oloid Tech AG Logo

Oloid Tech AG 

Basel · Since 2023

Research & DevelopmentSustainability SectorMechanical Engineering Industry
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Ongresso Energy AG Logo

Ongresso Energy AG 

Appenzell · Since 2022

The core activity of Ongresso Energy is the development and implementation of solutions to reduce carbon emissions and promote renewable energy, particularly in emerging countries. This includes: Developing and implementing carbon offset projects; Planning, building and operating solar power plants under Power Purchase Agreements (PPAs); Developing distributed energy generation facilities; and Advising and supporting customers in reducing their carbon emissions and implementing sustainability strategies. The company focuses on the regions of Latin America and Africa and works closely with local partners and stakeholders to develop innovative and effective solutions for a sustainable future.

Sustainability Sector
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Pachamama Sàrl Logo

Pachamama Sàrl 

Lutry · Since 2015

Sustainability Sector
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Panorama Reinigung GmbH Logo

Panorama Reinigung GmbH 

Bazenheid · Since 2016

Waste Management IndustryFacility Management & CleaningMoving Companies
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Pareno Projekt AG Logo

Pareno Projekt AG 

Steinhausen · Since 1996

Technical Consulting & EngineeringSustainability Sector
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Parkactive Impact Sàrl Logo

Parkactive Impact Sàrl 

Geneva · Since 2001

The core activity of PARKACTIVE is the development and implementation of sustainable infrastructure projects, particularly in the field of waste treatment and energy recovery from waste, as well as mechanical and chemical recycling of plastics in emerging countries.

Waste Management Industry
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PEGYTEC AG Logo

PEGYTEC AG 

Neuenegg · Since 1985

Technical Consulting & EngineeringEnergy Suppliers
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Pellaton Electricité S.A. Logo

Pellaton Electricité S.A. 

St-Aubin-Sauges · Since 1951

Pellaton Electricité S.A. is an electrical company that performs general electrical installations, power (high-voltage) and low-voltage systems, and installs photovoltaic, home-automation and security solutions. The company also sells and services household appliances and provides vocational training/apprenticeship opportunities.

Electrical Planning & InstallationSolar & Photovoltaics
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Pensionskasse Gemeinde Männedorf Logo

Pensionskasse Gemeinde Männedorf 

Männedorf · Since 2014

The company's core activity is the supply of energy and water, including the provision of electricity, water and wastewater services, as well as the promotion of electromobility and photovoltaics. The company also offers various services such as energy consulting, meter reading and emergency services.

Energy Suppliers
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Pheida AG Logo

Pheida AG 

Meggen · Since 2020

The core activity of Pheida is the development and provision of commercial applications for innovative microbial and biological technologies that provide green solutions and address environmental problems. In particular, the company focuses on the development and implementation of integrated biotechnology systems on a large scale to reduce energy consumption and solve environmental problems.

Sustainability Sector
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Picarro Sàrl Logo

Picarro Sàrl 

Geneva · Since 2010

The company is active in the development and marketing of solutions for measuring and analyzing gases, particularly methane, as well as monitoring and reducing emissions. The core activities include the development of products and services for the gas industry, environmental sciences, semiconductor industry, and other sectors that require precise gas analysis. This also includes providing technologies and services for monitoring and reducing methane emissions in gas distribution networks, as well as developing solutions for analyzing and monitoring environmental processes.

Sustainability Sector
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Pinto Pereira da Conceiçao Avelino Logo

Pinto Pereira da Conceiçao Avelino 

Neuchâtel · Since 2016

Pinto Pereira da Conceiçao Avelino provides heating, sanitary, renewable energy and repair services, including installation and maintenance work.

Plumbing & Building ServicesSolar & Photovoltaics
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PiU Antonio Righetti Logo

PiU Antonio Righetti 

Wabern · Since 2013

Sustainability Sector
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PJHSolar.Solutions Patricio Javier Helbok Logo

PJHSolar.Solutions Patricio Javier Helbok 

St. Margrethen Sg · Since 2023

The company's core activity consists of planning, implementing and maintaining photovoltaic systems for businesses (B2B) and private customers (B2C). This includes in particular: installation and inspection of photovoltaic systems, external project management and construction management, measurement and preliminary inspections, permit and planning procedures, commissioning and maintenance of systems. The company thus offers comprehensive services in the field of renewable energies, especially photovoltaics.

Solar & Photovoltaics
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Plan Biodivers GmbH Logo

Plan Biodivers GmbH 

Zurich · Since 2021

The company's core activity is communication and solution-finding for environmental concerns, particularly in the areas of biodiversity, climate adaptation and climate protection. The company develops tailored solutions for customers and supports them in promoting species diversity and their habitats. This includes communication services such as creating visual works, moderation, strategic consulting and translating complex facts into exciting stories.

Sustainability Sector
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PLIM Group AG Logo

PLIM Group AG 

Baar · Since 1996

Research & DevelopmentSustainability SectorElectrical 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.