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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

DTS Déchets-Tri-Service, Pierre Rabina Logo

DTS Déchets-Tri-Service, Pierre Rabina 

Crassier · Since 2016

Waste Management Industry
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Ductor AG Logo

Ductor AG 

Zug · Since 2018

The core activity of Ductor is to convert agricultural waste into sustainable organic fertilizers and biogas. To this end, the company operates facilities that enable this conversion and develops new projects in this field.

Energy SuppliersWaste Management Industry
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Dunkel & Schürch AG, Elektrische Anlagen Logo

Dunkel & Schürch AG, Elektrische Anlagen 

Bubendorf · Since 1979

Dunkel & Schürch AG, Elektrische Anlagen designs, installs and maintains electrical installations and provides planning, project engineering and service work. Services include new builds and renovations, photovoltaic systems, KNX and digitalSTROM bus systems, supply and installation of household appliances, and periodic electrical inspections.

Solar & Photovoltaics
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Dura Haustechnik GmbH Logo

Dura Haustechnik GmbH 

Schliern B. Köniz · Since 2023

The core activity of Dura Haustechnik is the planning, installation and maintenance of heating, sanitary and solar systems for residential and commercial buildings. The company offers innovative and sustainable solutions in the fields of heating, sanitation and solar technology, with the goal of creating living spaces that are tailored to the needs of customers, sustainable and energy-efficient.

Solar & Photovoltaics
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DURLEMANN ENERGIES SA Logo

DURLEMANN ENERGIES SA 

Chêne-Bourg · Since 1985

The core activity of Durlemann Energies is the installation, maintenance and repair of heating systems, including renewable energy systems such as pellet heating, photovoltaic systems and geothermal energy. The company also offers energy consulting, planning and services, including energy audits and optimization.

Technical Consulting & EngineeringPlumbing & Building ServicesSolar & Photovoltaics
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Durrer Severin Energie GmbH Logo

Durrer Severin Energie GmbH 

Alpnach Dorf · Since 2018

The core activity of Durrer Severin Energie GmbH is the planning, installation and maintenance of photovoltaic systems and air conditioning systems, with the goal of producing renewable energy and reducing energy consumption.

Solar & Photovoltaics
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Duynie Feed Switzerland GmbH Logo

Duynie Feed Switzerland GmbH 

Zug · Since 2024

Duynie Feed Switzerland GmbH processes co-products from the food, beverage and biofuel industries into new products, services and applications. It supplies sustainable feed solutions — including moist and liquid co-products for livestock — and offers nutritional and storage advice as well as quality and certification services.

Waste Management IndustryFood Processing
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E2 Management Consulting AG Logo

E2 Management Consulting AG 

Zurich · Since 2000

The core activity of E2 Management Consulting AG is advising and supporting companies in the areas of environmental and sustainability management. This includes developing strategies and concepts for sustainable corporate management, conducting life cycle assessments and implementing management systems. The company supports its customers in improving their environmental performance and achieving sustainability goals.

Management ConsultingSustainability Sector
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E2S Power AG Logo

E2S Power AG 

Wettingen · Since 2019

E2S Power AG is a joint venture between SS&A Power Development and the WIKA Group that develops thermal energy storage systems for retrofitting and repurposing existing coal-fired power plants. Its technology converts surplus electrical energy into heat using novel storage materials and returns the stored energy as superheated steam to operate existing steam turbines and generators; charging is based on direct resistive heating using AC current, which minimizes additional electrical equipment and enables rapid charging (under one hour) and near‑100% conversion of electricity to heat.

Energy Suppliers
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e3hus GmbH Logo

e3hus GmbH 

Wald Zh · Since 2004

The core activity of e3hus GmbH encompasses the areas of energy consulting, electromobility, electrical safety and renewable energies, particularly photovoltaics. The company offers services such as energy consulting, heating system checks, construction supervision, power efficiency optimization and safety inspections to support customers in switching to renewable energies and optimizing their energy efficiency.

Solar & Photovoltaics
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EA Earth Action SA Logo

EA Earth Action SA 

Lausanne · Since 2021

The core activity of EA (Earth Action) is to provide environmental research, consulting and solutions to companies, organizations and individuals to support them in reducing their environmental impact and creating sustainable value. EA offers a wide range of services, including environmental analysis, consulting, research and development of solutions to support companies in achieving their sustainability goals.

Sustainability Sector
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eambiente di Katharina Schuhmacher Logo

eambiente di Katharina Schuhmacher 

Vezia · Since 2014

The core activity of eambiente is the provision of environmental consulting services, particularly in the field of environmental law, technical translations related to the environment, construction and architecture, as well as consulting on biodiversity issues.

Sustainability Sector
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EAPOSYS SA Logo

EAPOSYS SA 

Biel/Bienne · Since 2015

The core activity of EAPOSYS SA is the development and implementation of Advanced Geothermal Systems (AGS) for energy production from deep hot rock formations. The company focuses on the development of Deep Geothermal Closed-Loop systems that produce hot water for heat and baseload power supply at the community level. EAPOSYS aims to transform regional energy systems and reduce dependence on fossil fuels by harnessing renewable energy from geothermal sources.

Energy Suppliers
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Eartheffect AG Logo

Eartheffect AG 

Olten · Since 2010

The Eartheffect GmbH company focuses on promoting sustainability through participation and education. The core activities include: Developing and implementing workshops, projects, and offers that support organizations and companies in developing and implementing a sustainable and circular economy strategy. Creating online courses and learning platforms, such as "Shape the Circle" and "Future Perfect", that support companies and educational institutions in integrating sustainability and circular economy. Providing consulting and training services for gastronomy businesses to promote energy efficiency and sustainability. Organizing events and trade fairs, such as the "Piazza Circulaire", to inspire the general public and local businesses to adopt sustainable practices. Developing interactive offers, such as "Circular Quest", to raise awareness and understanding of circular economy. Overall, the company's focus is on promoting sustainability and circular economy through education, participation, and consulting.

Management ConsultingSustainability Sector
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EarthXCG GmbH Logo

EarthXCG GmbH 

Schaffhausen · Since 2022

EarthXCG GmbH operates a software platform for asset origination used by energy transition projects and markets to manage environmental credits. Its products include the Environmental Credit Service and automated verification analytics that use AI, advanced data analytics and enterprise infrastructure to verify environmental impacts across methodologies and standards.

Sustainability SectorSoftware Development
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EASY CLEAN Schweiz GmbH Logo

EASY CLEAN Schweiz GmbH 

Berikon · Since 2022

The core activity of EASY CLEAN Schweiz GmbH is the development, manufacture and distribution of environmentally friendly cleaning products under the UNI SAPON brand. These products are based on plant-based raw materials, biodegradable, skin-friendly and free from preservatives, synthetic fragrances and dyes. They are offered as concentrates that can be diluted with water by the customer themselves to reduce packaging waste. The company offers its products for use in households, hotels, restaurants and shops.

Sustainability Sector
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EasycleanVS Sàrl Logo

EasycleanVS Sàrl 

Martigny · Since 2024

The company EasycleanVS offers services in the field of automobile cleaning, particularly dry cleaning of vehicles. The core activity involves cleaning cars without water, using environmentally friendly products and techniques. The company provides its services both on-site and at its center in Martigny, aiming to offer an environmentally friendly and sustainable solution for vehicle cleaning.

Sustainability Sector
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easysolar europe GmbH Logo

easysolar europe GmbH 

Herisau · Since 2020

easysolar europe GmbH provides consultancy and services for photovoltaic systems, supporting both commercial and private photovoltaic installations.

Specialized Construction ActivitiesElectrical Planning & InstallationSolar & Photovoltaics
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Eaternity AG Logo

Eaternity AG 

Zurich · Since 2014

The core activity of Eaternity is to develop a solution for the food industry to accurately and efficiently measure the environmental footprint of food. This is intended to enable intelligent decisions that benefit humans, the planet, and profit. The company specifically offers: * Calculation of the environmental footprint of food for restaurants and food manufacturers * Development of software and tools to perform these calculations * Support for restaurants and food manufacturers in reducing their environmental footprint * Provision of information and resources to educate the public about the impact of food on the environment.

Sustainability Sector
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eazit Sàrl Logo

eazit Sàrl 

Grand-Lancy · Since 2020

The company eazit offers innovative and sustainable solutions for businesses to optimize their internal activities in the areas of restoration and hospitality. The core activity of the company includes the development and implementation of connected ecosystems, which enable the rationalization and improvement of the equipment and operation of break rooms, canteens, and other gastronomic facilities. This includes the provision of intelligent refrigerators, automated vending machines, mini dishwashers, and other devices designed to reduce energy consumption and waste production. In addition, eazit also offers services such as designing break rooms, organizing events, and training employees. A key aspect of eazit's activities is sustainability and reducing the ecological footprint. The company is committed to the environment and strives to design its solutions to meet the needs of businesses while protecting the environment.

Sustainability Sector
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Ebosa Trading AG Logo

Ebosa Trading AG 

Bettlach · Since 1988

The core activity of Ebosa Trading AG is trade and consulting in the field of solar technology, energy measurement devices and home automation. The company offers a wide range of products, including energy meters, current sensors, wall boxes, solar technology, wind generators and home automation solutions. It supports customers in the procurement and implementation of these technologies and also offers consulting services.

Solar & Photovoltaics
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eBOX AG Logo

eBOX AG 

Zurich · Since 2020

The core activity of eBOX AG is providing comprehensive solutions for energy and building technology, including planning, implementation, realization and management of systems. The company offers modular energy solutions with all-round service and supports the energy transition and a CO2-neutral society through innovative overall solutions.

Sustainability Sector
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EC Energy Clean SA Logo

EC Energy Clean SA 

Lugano · Since 2019

The core activity of Energy Clean SA is the provision of services in the field of energy supply, particularly in gas supply and energy consulting.

Energy Suppliers
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Éclore Logo

Éclore 

Geneva · Since 2023

The core activity of Éclore is organizing workshops and ateliers aimed at supporting companies, municipalities and their citizens in developing and implementing sustainable projects and solutions together. Éclore provides methods and tools to promote collaboration and creativity and empower participants to achieve their goals in the area of social and environmental responsibility.

Sustainability Sector
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ECO3 GmbH Logo

ECO3 GmbH 

Gossau Sg · Since 2011

The company eco3 offers consulting and services in the field of recycling and circular economy. The core activities include: Recycling consulting and consulting, Development of disposal concepts and processes, Analysis and optimization of production processes, Application for permits and verification of legal compliance, Development of logistics concepts and resource management, Recovery of resources and utilization of valuable materials, Research and development in the field of recycling and circular economy. The company supports customers in implementing sustainable and efficient solutions in the field of recycling and circular economy.

Sustainability Sector
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ECOÂTRE Sàrl Logo

ECOÂTRE Sàrl 

Sorens · Since 2020

The core activity of Ecoâtre is the manufacture and distribution of heating and cooking appliances, in particular: fireplaces, wood-burning stoves, pellet/granule stoves, cookers and barbecues. The company offers a wide range of products, including special models such as hybrid stoves and inserts for fireplaces.

Sustainability Sector
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ECO Bautec & Design AG Logo

ECO Bautec & Design AG 

Freidorf Tg · Since 2021

The core activity of ECO Bautec & Design AG is the development, distribution and consulting of ecological and sustainable solutions in the field of soil and building protection, particularly coating systems with low solvent content that promote healthy indoor air.

Sustainability Sector
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ECO Business AG Logo

ECO Business AG 

Uster · Since 2007

The core activity of Ecobusiness AG is the reduction of fuel consumption for environmental protection.

Sustainability Sector
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Eco-CARBON AG Logo

Eco-CARBON AG 

Hünenberg · Since 2018

The core activity of Eco-Carbon Ltd. is the development and implementation of solutions for the recycling of electronic and automotive waste, particularly through the use of continuous pyrolysis. The company specializes in the treatment of Automotive Shredder Residue (ASR) and Waste Electrical and Electronic Equipment (WEEE), producing Biochar, a product resulting from the decomposition of organic materials.

Waste Management Industry
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Eco-Citoyen Logo

Eco-Citoyen 

Grand-Lancy · Since 2019

The core activity of the company 'Eco-Citoyen' is to promote sustainable and environmentally friendly behavior in society, particularly in the areas of energy, water, mobility, waste, nutrition, and consumption. The company offers various activities and services, such as workshops, brunches, animations, and site visits, to raise awareness and support people in developing environmentally friendly behaviors. Additionally, the company also provides specialized services for businesses to support them in implementing sustainable practices.

Sustainability Sector
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eco core GmbH Logo

eco core GmbH 

Basel · Since 2016

eco core GmbH develops and implements customized photovoltaic solutions that increase self‑consumption through rooftop and façade integration, battery storage, EV charging and smart‑home connectivity. The company provides analysis, planning, installation and financing services for residential, commercial and institutional PV systems.

Solar & Photovoltaics
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Ecoconsult Ritter Logo

Ecoconsult Ritter 

Basel · Since 2009

Ecoconsult Ritter provides strategic planning and implementation of environmental projects along with project management and advisory services. Services include risk concepts and assessments, environmental legal advice, coordination with third parties, client representation and mediation.

Management ConsultingSustainability Sector
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EcoDoggo KLG Logo

EcoDoggo KLG 

Strengelbach · Since 2024

The core activity of EcoDoggo is the development, manufacture and distribution of sustainable dog accessories, such as collars, harnesses, toys and accessories, made from high-quality materials that are both stylish and eco-friendly.

Sustainability Sector
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Eco Energie Etoy Société coopérative à Lully VD Logo

Eco Energie Etoy Société coopérative à Lully VD 

Lully Vd · Since 1960

The core activity of Eco Energie Etoy is the development and operation of photovoltaic systems for the production of renewable energy, particularly in the agricultural sector.

Solar & Photovoltaics
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Eco Energie Sàrl Logo

Eco Energie Sàrl 

Courtion · Since 2008

Eco Energie Sàrl plans, supplies and installs photovoltaic systems and heat pump solutions (air–water and geothermal), and provides maintenance and support services for private, commercial and public-sector clients.

Plumbing & Building ServicesSolar & Photovoltaics
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eco energie a plus ag Logo

eco energie a plus ag 

Hirschthal · Since 2010

eco energie a plus ag is an energy services provider offering design, installation and maintenance of photovoltaic systems, heat pumps, battery storage and e-mobility charging solutions. The company supports projects from analysis and project development through installation and commissioning to ongoing maintenance, and provides consultation, offers and references.

Solar & Photovoltaics
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Eco-Erg International AG Logo

Eco-Erg International AG 

Zug · Since 2017

The core activity of Eco-Erg International A.G. is the production and utilization of biomass from microalgae for various purposes, including: * Generation of renewable energy * Production of CO2-neutral products * Development of applications in the fields of cosmetics, pharmaceuticals, food and agriculture * Research and development in the field of microalgae technology The company focuses on the sustainable use of microalgae as a natural resource and aims to develop products and solutions that are environmentally friendly and economically viable.

Research & DevelopmentSustainability Sector
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ECOEXISTENCE - Robledo Abad Althaus Logo

ECOEXISTENCE - Robledo Abad Althaus 

Weesen · Since 2012

The core activity of EcoExistence is to provide services in the field of environment and sustainability, particularly in the areas of climate change, natural resources, environmental assessments and consulting. Specifically, this includes: Development of strategies to reduce greenhouse gas emissions and energy consumption; Environmental assessments and consulting for companies and organizations; Research and development in the field of sustainability and environmental protection; Consulting and support for the implementation of sustainability strategies; Development of nature-based solutions for climate change adaptation and mitigation; Conducting climate change vulnerability analyses and consulting; Development of guidelines and guides for the implementation of sustainability principles. The company also offers educational and research services, including supervision of master's and doctoral theses, as well as the development of children's books on environmental topics.

Sustainability Sector
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Eco-fit GmbH Logo

Eco-fit GmbH 

Nidau · Since 2022

The core activity of Eco Fit by Nicole Witschi is the creation of tailored and innovative solutions for the sustainable development of companies, organizations and public institutions, particularly in the areas of climate, energy and environment. This includes the development of strategies, concepts and projects to reduce environmental impacts, the creation of communication concepts and support in the implementation of sustainability projects.

Sustainability Sector
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Eco-FLY AG Logo

Eco-FLY AG 

Rolle · Since 2015

The core activity of Eco Fly AG is the sustainable dismantling and recycling of decommissioned aircraft, including the development of innovative approaches for the reuse of recycled materials.

Waste Management Industry
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EcoForce GmbH Logo

EcoForce GmbH 

Schötz · Since 2022

The core activity of ecoforce GmbH is the comprehensive consulting and support of companies in their transition to low-emission technologies and processes. This includes, in particular, the areas of mobility and transport, civil engineering, energy efficiency and battery storage systems. The company supports its customers in identifying optimal solution approaches, introducing alternative technologies and optimizing processes to achieve an emission-free future.

Sustainability Sector
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Eco Generation GmbH Logo

Eco Generation GmbH 

Baar · Since 2019

The core activity of eco generation is the distribution of sustainable and ecological products, particularly for young families, as a distributor throughout Switzerland.

Sustainability Sector
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ECOGEN Euthal Genossenschaft Logo

ECOGEN Euthal Genossenschaft 

Euthal · Since 2022

ECOGEN Euthal Genossenschaft operates a community district heating project that distributes renewable heat produced from residual wood from Sägerei Kälin AG via a pipeline network to homes and businesses. The cooperative organises financing, construction and operation of the heating network and offers connection and membership options with energy share certificates.

Energy Suppliers
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ECOGEN Stoos Genossenschaft Logo

ECOGEN Stoos Genossenschaft 

Stoos Sz · Since 2022

Energy Suppliers
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Ecogestion Solutions Environnementales Sàrl Logo

Ecogestion Solutions Environnementales Sàrl 

Neuchâtel · Since 2005

Ecogestion Solutions Environnementales Sàrl provides environmental services including investigation and remediation of contaminated sites, natural hazard mapping, construction and municipal waste management, material recovery, river revitalization, environmental impact studies, and life-cycle assessments. Implementation of measures is carried out in coordination with Mauler SA, civil engineers.

Waste Management Industry
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Ecogie Genossenschaft für die aktive Energiewende Logo

Ecogie Genossenschaft für die aktive Energiewende 

Thun · Since 2011

Ecogie Genossenschaft für die aktive Energiewende develops and operates photovoltaic installations, offers membership and investor participation in projects, and sells solar electricity.

Energy SuppliersSolar & Photovoltaics
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Eco-Huile Sàrl Logo

Eco-Huile Sàrl 

Etoy · Since 2022

The core activity of Eco-Huile is the collection and recycling of used cooking oils, particularly for restaurants and catering professionals. The company offers a tailored service that includes rapid and punctual collection, secure and leak-proof equipment, and the conversion of the oils into biodiesel. The goal is to protect the environment and contribute to a sustainable future.

Waste Management Industry
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ECOHZ AS, Oslo (Norvège), succursale de Nyon Logo

ECOHZ AS, Oslo (Norvège), succursale de Nyon 

Nyon · Since 2011

The company's core activity is to support businesses in the use of renewable energy and the reduction of CO2 emissions, particularly in the area of documentation and certification of renewable energy as well as compliance with regulatory requirements and voluntary standards such as CDP, SBTi and RE100.

Sustainability Sector
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eco-invention ag Logo

eco-invention ag 

Buochs · Since 2022

The core activity of eco-invention ag is the development and provision of innovative solutions for the photovoltaic industry, particularly in the field of mounting systems and concepts for PV installations.

Solar & Photovoltaics
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ecolabor GmbH Logo

ecolabor GmbH 

Lupsingen · Since 2019

The core activity of ecolabor GmbH is to support and accompany photovoltaic projects, battery storage solutions and future-proof building technology, particularly in the field of decentralized power generation and storage for single and multi-family homes. The company offers IT services such as IT consulting, IT project management and implementation of architecture transformations to support its customers in using cloud services and smart technology. In addition, it offers energy services, such as planning and implementation of photovoltaic projects and the implementation of battery storage solutions.

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.