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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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9'016 companies found

Fondazione Rivivere Canton Sott Linescio Logo

Fondazione Rivivere Canton Sott Linescio 

Linescio · Since 1997

The company Hostelleria offers a range of activities and services focused on the maintenance and upkeep of a property. The core activity of the company can be described as sustainable property maintenance and upkeep, supported by volunteer work, donations, and sponsoring. The activities include, among others: property maintenance and upkeep, organization of workshops and community meals, maintenance of dry stone walls and other landscape elements, construction and maintenance of playgrounds and other recreational facilities, and organization of events. The company aims to create a community that is committed to the maintenance and preservation of the property, while also providing a platform for social interaction and community building.

Sustainability Sector
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Fondazione SOS Planet Logo

Fondazione SOS Planet 

Maloja · Since 2021

The core activity of SOS Planet is to commit to reducing greenhouse gas emissions and achieving net carbon dioxide neutrality. The company is involved in various areas, including: conducting scientific studies and surveys to capture public opinion and the need for immediate action; mobilizing governments, companies and individuals to achieve net carbon dioxide neutrality; promoting education and awareness of the importance of climate protection; and supporting initiatives and projects that contribute to reducing greenhouse gas emissions. The company sees itself as part of a global movement committed to climate protection and strives to create a growing community of carbon-neutral individuals, companies, organizations and institutions.

Sustainability Sector
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Fondazione Verzasca - Agenzia di sviluppo territoriale Logo

Fondazione Verzasca - Agenzia di sviluppo territoriale 

Lavertezzo · Since 1991

The core activity of Fondazione Verzasca is the promotion, coordination and implementation of regional initiatives in the Valle Verzasca and Piano areas, as well as providing consulting and support services for projects. It acts as a regional development agency, offering services such as project development, consulting and support for local stakeholders to promote regional development.

Sustainability Sector
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Fontana unlimited GmbH Logo

Fontana unlimited GmbH 

Zug · Since 2023

Fontana unlimited GmbH collects used cooking oil from restaurants, hotels and large kitchens free of charge and manages its professional processing and recycling, for example into biodiesel. On request the company supplies fresh cooking oils (e.g., sunflower, rapeseed and frying oils) and combines pickup and delivery to reduce empty trips.

Waste Management IndustryLogistics & Transport Companies
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FOOD2050 AG Logo

FOOD2050 AG 

Zurich · Since 2022

The company FOOD2050 develops and offers software for food service companies that enables them to measure and optimize their impact on the environment and health. The software includes features such as recipe assessment, consumer communication, and progress monitoring. The goal is to support companies in achieving their sustainability and health goals while increasing efficiency and enhancing brand value.

Sustainability Sector
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FoodSharing GmbH Logo

FoodSharing GmbH 

Meilen · Since 2010

The core activity of the company foodsharing is to reduce food waste by offering a platform where people can share and rescue surplus food. The company is committed to sustainable development and changing the way people live and do business, and offers educational work, lectures and workshops to raise awareness about the issue.

Sustainability Sector
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foodwaste.ch AG Logo

foodwaste.ch AG 

Bern · Since 2020

The core activity of foodwaste.ch is to reduce food waste in Switzerland through various projects, partnerships and initiatives. These include, among others: Organizing exhibitions and events on the topic of food waste; Implementing projects such as the Zero-Waste Kitchen, Foodsave Banquet and Harvest Network; Supporting retailers and farm shops in reducing food waste; Conducting educational and awareness-raising work, particularly in schools; Coordinating local initiatives and partnerships to reduce food waste. The company is committed to a sustainable and resource-efficient food economy and aims to contribute to reducing food waste in Switzerland through its activities.

Sustainability Sector
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Forces Motrices de Conches S.A. Logo

Forces Motrices de Conches S.A. 

Ernen · Since 1968

The core activity of Gommerkraftwerke AG is the generation of electrical energy through hydroelectric power plants. The company operates several power plants in the Swiss Alps, particularly in the canton of Valais, and produces exclusively hydraulic energy.

Energy Suppliers
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Förderverein Ammern Logo

Förderverein Ammern 

Blitzingen · Since 2005

The core activity of the company "Förderverein Ammern" is the preservation and management of a cultural asset of national importance, particularly the hamlet of Ammern in the Goms, through the combination of agriculture, animal husbandry, and handicrafts. This includes the extensive management of land, the conservation breeding of old breeds such as the Evolèner cattle, and the promotion of biodiversity. Additionally, cultural activities such as the restoration of art and cultural assets, the documentation of history, and the preservation of traditional ways of life and agricultural techniques are carried out.

Sustainability Sector
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Forellenzucht Metz GmbH Logo

Forellenzucht Metz GmbH 

Malters · Since 2024

The core activity of Forellenzucht Metz GmbH is the breeding and sale of high-quality fish, particularly trout, salmon and char, in compliance with strict sustainability and animal welfare standards.

Sustainability Sector
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forest8 AG Logo

forest8 AG 

Kreuzlingen · Since 2015

forest8 AG operates a digital platform that lets individuals and companies virtually rent forest areas to support conservation efforts and offset their CO2 footprint. The service includes subscription products such as forest8+ and tools to track forest condition via satellite data and regular updates from landowners.

ForestrySustainability SectorSoftware Development
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FORMAFIX SWITZERLAND AG Logo

FORMAFIX SWITZERLAND AG 

Hittnau · Since 2005

The core activity of Formafix Switzerland AG is the reprocessing of formalin and the supply of reprocessed formalin to laboratories, pathology departments, universities and hospitals. In addition, the company offers a comprehensive range of consumables, equipment and facilities for laboratories, particularly in the field of pathology.

Waste Management Industry
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Forstina AG Logo

Forstina AG 

Hunzenschwil · Since 2003

The core activity of Forstina AG includes mechanized wood harvesting, wood trading and wood transportation, particularly in the field of energy wood and wood chips.

Sustainability Sector
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Fortis Solar AG Logo

Fortis Solar AG 

St. Gallen · Since 2021

The core activity of Fortis Solar AG is the planning, development, construction and operation of industrial photovoltaic systems for companies in Switzerland. They offer services such as project development, construction and execution, contracting and financing, as well as operation and maintenance of solar systems to help companies achieve their sustainability goals and ensure environmentally friendly energy supply.

Solar & Photovoltaics
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Fortis Tech AG Logo

Fortis Tech AG 

St. Gallen · Since 2023

Fortis Tech AG provides commercial and industrial photovoltaic systems, developing, designing and delivering large‑scale solar installations for property owners and businesses. Services include project development and design, construction and installation, contracting and financing solutions, and operation and maintenance with monitoring and performance analysis.

Solar & Photovoltaics
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Forum Umwelt AG Logo

Forum Umwelt AG 

Visp · Since 1998

The core activity of Forum Umwelt AG is environmental consulting and research, particularly in the preparation of environmental impact assessments, environmental construction supervision, studies on ecological special issues, contaminated site and soil investigations, as well as project management of interdisciplinary working teams.

Sustainability Sector
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Foundation Ithaka Institute Logo

Foundation Ithaka Institute 

Arbaz · Since 2009

The core activity of the Ithaka Institute is the research and development of carbon strategies, particularly in the field of biochar production, application and certification, as well as consulting and implementation of projects in the areas of climate protection, soil fertility and sustainable agriculture. The institute also offers services such as laboratory analysis, consulting and education, and develops solutions for sustainable agriculture and climate neutrality.

Sustainability Sector
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Fountain Impact AG Logo

Fountain Impact AG 

Zurich · Since 2023

The core activity of Wonderfill is the development and provision of a sustainable beverage station for offices and companies, aiming to reduce the consumption of single-use plastic bottles. The beverage station offers a selection of healthy and natural drinks that are personalized and sustainable. The company aims to support businesses in reducing their plastic consumption while offering a healthier alternative to traditional soft drinks.

Sustainability Sector
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Fournier, dépannage, électricité, électroménager Logo

Fournier, dépannage, électricité, électroménager 

Veysonnaz · Since 2000

The company Electricité Fournier - ConceptEnergie is an electrical installation company specializing in the planning, installation, and maintenance of electrical systems, including photovoltaic systems. The core activities include the design and implementation of electrical installations for residential and commercial buildings, chalets, hotels, and other properties, as well as the installation of solar systems and consulting on energy efficiency and production.

Solar & Photovoltaics
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FOXLED1 AG Logo

FOXLED1 AG 

Hünenberg · Since 2014

The core activity of FOXLED1 AG is the development, manufacture and marketing of innovative solar panels and modules based on patented technologies, particularly for use in the automotive industry, construction, agriculture and energy production. The products are characterized by high efficiency, transparency and a unique micro-optics that enables the use of solar energy even in low light conditions.

Solar & Photovoltaics
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Frank Energy GmbH Logo

Frank Energy GmbH 

Rapperswil Sg · Since 2017

The core activity of Frank Energy GmbH is to design, analyze and implement solutions for the energy transition, with the goal of achieving effective, efficient and profitable results. The company provides consulting services to support customers in implementing energy projects and finding solutions tailored to their specific needs.

Technical Consulting & EngineeringSustainability Sector
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Franz Rebmann AG Logo

Franz Rebmann AG 

Kaisten · Since 1991

The core activity of Franz Rebmann AG is the planning, installation, maintenance and repair of heating systems and heat pumps. The company offers a wide range of services in the field of heat technology, including the installation of heating systems, heat pumps and other heat technology systems, as well as the maintenance and repair of existing systems.

Solar & Photovoltaics
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Free State AG Logo

Free State AG 

Schaffhausen · Since 2024

Free State AG provides photovoltaic solutions and energy services for industrial and commercial clients, covering design, installation, operation and maintenance of solar systems, as well as PV contracting and rooftop leasing.

Energy SuppliersSolar & Photovoltaics
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frei stil Logo

frei stil 

Bern · Since 2023

The core activity of the company "freistil" is the provision of services in the field of health promotion and sustainable development, particularly in the areas of nutrition and exercise. This includes: * Project management: conception, implementation and management of projects * Expert advice: consulting services in the field of sustainable and healthy nutrition and gastronomy, as well as expertise on the topics of nutrition and exercise, health promotion and sustainable development * Communication: editorial activities and development of communication measures * Education: educational offers and projects in the field of sustainable gastronomy and health promotion The company supports customers from the public sector, non-governmental organizations, educational institutions and companies in the implementation of projects and strategies in the field of health promotion and sustainable development.

Sustainability Sector
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FRIEGEN AG Logo

FRIEGEN AG 

Hofstetten B. Brienz · Since 2023

FRIEGEN AG provides consulting and services for photovoltaic systems and solar thermal installations, offering initial consultations in its office or on-site, demonstrations and project planning. Services include roof suitability assessments, advice on investment costs, subsidies and self-consumption, and assistance with selecting installers and reviewing quotations.

Solar & Photovoltaics
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Frienergie Sàrl Logo

Frienergie Sàrl 

Belfaux · Since 2011

The company Frienergie is primarily involved in the planning, installation, and maintenance of heating, sanitary, and solar energy systems. The core activities include: Heating: Improving the thermal comfort of living and working spaces; Sanitary: Planning and installation of sanitary facilities; Solar Energy: Installation of solar thermal and photovoltaic systems for heat and electricity generation; Dépanage: 7-day emergency service for troubleshooting and repairs. The company thus provides comprehensive solutions for building energy supply and comfort.

Solar & Photovoltaics
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frigg.eco AG Logo

frigg.eco AG 

Zug · Since 2022

frigg.eco AG is a digital platform for renewable energy project finance that connects project developers, investors and asset managers. It facilitates project documentation, financial analysis, fundraising and post-investment monitoring, and offers products including Marketplace, Transactions, Frigg Intelligence and Portfolio Management.

Sustainability SectorFinTechSoftware Development
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frinat, Isabelle Baeriswyl Boschung Logo

frinat, Isabelle Baeriswyl Boschung 

Fribourg · Since 2020

The core activity of frinat is consulting and education in the field of waste and resource management, particularly in the development and implementation of projects for waste avoidance and utilization, such as the kompoBOX. The company also offers services like layout and editing for publications and is active in training and consulting schools and other institutions in the field of waste management.

Sustainability Sector
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FrisiTec GmbH Logo

FrisiTec GmbH 

Steinmaur · Since 2016

The core activity of FrisiTec GmbH is the execution of installations, high-altitude work and security services at hard-to-reach locations and in areas prone to falling, particularly in compliance with safety regulations such as SUVA, SHRV and FISAT.

Solar & Photovoltaics
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Fri Solar Sàrl Logo

Fri Solar Sàrl 

Fribourg · Since 2024

The core activity of Frisolar is the planning, installation and maintenance of solar systems for private and commercial customers. The company offers a wide range of services, including consulting, individual solutions, professional installation, maintenance and repair of solar systems. The goal is to support customers in reducing their energy costs while protecting the environment.

Solar & Photovoltaics
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Fritz Baur AG Logo

Fritz Baur AG 

Bern · Since 2000

The core activity of Fritz Baur AG is the planning and implementation of sanitary, solar and heating systems for private individuals, administrations and the public sector.

Solar & Photovoltaics
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FRONIUS Schweiz AG Logo

FRONIUS Schweiz AG 

Rümlang · Since 1992

FRONIUS Schweiz AG distributes and supports products and solutions from the Fronius business units Solar Energy, Welding Technology and Battery Charging, including inverters, battery storage systems and welding equipment. The company also provides product-related service and support.

Solar & Photovoltaics
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Frutiger Transporte AG Logo

Frutiger Transporte AG 

Steffisburg · Since 1975

The core activity of Frutiger Transporte AG consists of two main areas: 1. Overland transports: The company offers transport services for heavy goods, particularly with trailer trains equipped with lifting platforms or cranes. 2. Waste transports: Frutiger Transporte AG also carries out waste transports. In addition to these services, the company also offers electric trucks, container sales and other services, but the two mentioned areas are the core activities of the company.

Waste Management IndustryLogistics & Transport Companies
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Fuchs Ökoberatung GmbH Logo

Fuchs Ökoberatung GmbH 

Kaltbrunn · Since 2023

The core activity of Fuchs Ökoberatung is consulting, planning and accompanying projects in the field of biodiversity promotion and landscape conservation, particularly in forestry and nature conservation. This includes services such as tree care concepts, tree accompaniment, success controls, project management, nature and environmental protection, neophyte control, ecological upgrading and species promotion.

Sustainability Sector
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Future Hub Region Thun AG Logo

Future Hub Region Thun AG 

Thun · Since 2022

Future Hub Region Thun AG operates a power-to-heat (P2H) facility that converts surplus electricity into heat and supplies it as district heating to private households, commercial customers and industry. The measure helps balance electricity-grid fluctuations and complements district heating supply from the KVA Thun.

Energy Suppliers
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Fyrosol AG Logo

Fyrosol AG 

Walzenhausen · Since 1991

The core activity of Fyrosol AG is the planning, installation and maintenance of renewable energy systems, particularly solar power systems, battery storage systems and heat pumps, as well as providing services for monitoring and simulating energy production and consumption.

Energy SuppliersSolar & Photovoltaics
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G-A Duc Electricité Sàrl Logo

G-A Duc Electricité Sàrl 

Moudon · Since 2018

The core activity of G-A Duc Electricité Sarl is the provision of electrical services, including the installation, maintenance and repair of electrical systems, as well as the realization of projects in the field of electrical engineering, for both private and commercial and public customers.

Electrical Planning & InstallationSolar & Photovoltaics
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Gaebo AG Logo

Gaebo AG 

Reinach Ag · Since 1991

Electrical Planning & InstallationSolar & Photovoltaics
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Gaëlle Bigler Logo

Gaëlle Bigler 

Villarlod · Since 2015

The company's core activity is advising and supporting institutions and public entities in the development and implementation of sustainable and social projects in the field of food systems, particularly in agroecology and local food economies.

Sustainability Sector
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GaiaLogics AG Logo

GaiaLogics AG 

Vissoie · Since 2023

Gaialogics is a network of experienced consultants, strategists, engineers, financiers, and inventors specializing in innovations in the fields of renewable energy, sustainability, and environmental technology. Their core activities include: * Developing and implementing innovative ideas in the fields of renewable energy, energy efficiency, and sustainability * Consulting and supporting the development of products and projects in the field of renewable energy, particularly in the areas of solar and battery technology * Researching and developing new materials and technologies for renewable energy * Consulting and supporting the implementation of projects in the field of renewable energy, particularly in the areas of solar and battery technology * Developing strategies and financing concepts for companies and projects in the field of renewable energy Gaialogics also offers specific services, such as the development of solar transparencies, DSC and perovskite technology, as well as consulting on the industrialization of DSC and perovskite products.

Solar & Photovoltaics
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GAIASENS Technologies SARL Logo

GAIASENS Technologies SARL 

Martigny · Since 2010

The core activity of Gaiasens Technologies is the development, installation and maintenance of systems for monitoring and measuring environmental factors such as weather, air quality, snow and glaciers. The company specializes in the development of solutions for meteorological monitoring, air and water quality assurance, as well as monitoring of natural hazards such as avalanches and glacier movements. Gaiasens Technologies also develops and installs camera systems for visual monitoring of environmental factors and offers services for data analysis and visualization.

Sustainability Sector
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Gaia Tech AG Logo

Gaia Tech AG 

Zollikofen · Since 2021

Gaia Tech AG develops and produces upcycled ingredients from agricultural by-products for the cosmetics and food industries. Its core activity involves developing treatment and utilization solutions for agricultural by-products that can be converted into natural compounds to replace synthetic ingredients in products.

Sustainability Sector
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GAIAVIDA AG Logo

GAIAVIDA AG 

Zug · Since 2023

GAIAVIDA is an online marketplace specializing in the marketing of products that have a positive impact on the environment and human health. The company's core activity is to offer products that promote the regeneration of the earth and human health, such as water, microorganisms, and traditional home remedies. The company pursues a sustainable and morally responsible business strategy based on personal responsibility, transparency, and appreciation.

Sustainability Sector
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Ganz Klima GmbH Logo

Ganz Klima GmbH 

Rüti Zh · Since 2003

The core activity of Ganz Klima GmbH is the analysis and assessment of indoor air quality through chemical, biological and physical measurements. This includes in particular: * Acceptance measurements for certification according to Minergie-Eco, SNBS, LEED, SGNI/DGNB * Complaint measurements to clarify foreign odors and health problems * Status measurements to assess room air hygiene aspects and identify solutions for a good indoor climate * Measurements to check the indoor air quality in offices, schools and other buildings * Clarification of old pollutants such as wood preservatives, tar or PCB in old buildings The company thus offers comprehensive services in the field of indoor air quality and hygiene.

Sustainability Sector
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Gasa Hydro SA Logo

Gasa Hydro SA 

Sierre · Since 2012

The core activity of Gasa Hydro SA is the design, construction and maintenance of small hydroelectric power plants equipped with Pelton turbines.

Construction & Project ManagementEnergy Suppliers
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Gasche Bau und Energie GmbH Logo

Gasche Bau und Energie GmbH 

Biberist · Since 2015

Gasche Bau und Energie GmbH provides external building administration and client advisory services for municipalities, and supplies interim project management and temporary leadership for industrial projects. The company also carries out energy analyses of industrial processes and supports procurement and infrastructure maintenance projects.

Technical Consulting & EngineeringConstruction & Project ManagementSustainability Sector
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Gasser Wassertechnik AG Logo

Gasser Wassertechnik AG 

Zwingen · Since 2016

The core activity of Gasser Wassertechnik AG is the planning, implementation and maintenance of water supply systems, including leak detection and repair. The company also offers products and services in the field of water supply and advises customers on complex issues.

Water Supply
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GazEl SA Logo

GazEl SA 

Vétroz · Since 2007

The core activity of GazEL SA is the treatment of organic waste and the production of biogas. Specifically, this includes the collection and processing of various types of organic waste such as green waste, restaurant waste, old wood, feces and waste from the food industry to produce biogas. Additionally, the company produces natural fertilizers as a by-product of the biogas process.

Waste Management Industry
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GDR - Green Dental Recycling GmbH Logo

GDR - Green Dental Recycling GmbH 

Rorschach · Since 2011

GDR - Green Dental Recycling GmbH provides professional disposal and recycling services for amalgam-containing dental waste, including free collection and online ordering for full amalgam separator containers. The company is described on its website as a certified waste disposal specialist that issues digital disposal certificates and operates with an emphasis on CO2-neutral, resource-conscious handling.

Waste Management Industry
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Gebr. Trütsch Logo

Gebr. Trütsch 

Unteriberg · Since 1990

The core activity of Gebr. Trütsch is the provision of services in the areas of sanitary, heating and metal construction. Specifically, this includes the installation, renovation and maintenance of heating systems, as well as the provision of sanitary services and the manufacture and assembly of metal structures.

Solar & 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.