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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

Texaid Schweiz AG Logo

Texaid Schweiz AG 

Schattdorf · Since 1991

Contex AG is a subsidiary of TEXAID and part of the Texaid group. The company is involved in the collection, sorting and recycling/valorisation of used textiles.

Waste Management Industry
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Contoral AG Logo

Contoral AG 

Alpnach Dorf · Since 1983

The core activity of Contoral AG is the trade and provision of services in the field of precious metals.

Construction & Project ManagementEnergy Suppliers
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Contrade plus GmbH Logo

Contrade plus GmbH 

Au Sg · Since 2003

Contrade plus GmbH is a project development and technology integration firm that develops and implements projects in renewable energy, precision agriculture and circular-economy systems. Its activities include building clean fuel corridors for biodiesel and sustainable aviation fuels, deploying climate-smart farming systems, and integrating resource-efficient infrastructure through partnerships and technology sourcing.

Technical Consulting & EngineeringSustainability Sector
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CONVERT GREEN SAGL Logo

CONVERT GREEN SAGL 

Cadempino · Since 2015

The core activity of Convert Green is the development, manufacture and installation of innovative systems and products for wastewater treatment, particularly for the separation of water, sludge and oils, as well as for the treatment of wastewater in rustic and agricultural facilities. This also includes the production of waterless toilets and the planning, implementation and maintenance of wastewater treatment plants.

Sustainability Sector
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CO-OBJECTIFS 21 SA Logo

CO-OBJECTIFS 21 SA 

Plan-Les-Ouates · Since 2017

The core activity of CO-Objectifs 21 SA is to advise and support companies and municipalities in improving their waste management and prevention. This includes, in particular, the creation of tenders for waste disposal, the optimization of waste separation, and the development of innovative solutions for waste prevention and recovery. The company aims to convert waste into resources and contribute to the creation of a sustainable and environmentally friendly economy.

Sustainability Sector
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coomuno AG Logo

coomuno AG 

Andhausen · Since 1990

The core activity of coomuno AG is the development and provision of solutions for agriculture, with a focus on sustainable agriculture.

Sustainability Sector
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Cooperativa Elettrica di Faido (CEF) Logo

Cooperativa Elettrica di Faido (CEF) 

Faido

The core activity of CEF (Cooperativa Elettrica di Faido) is the supply of electricity and related services, such as the installation and maintenance of electrical systems, the measurement and billing of electricity consumption, as well as the promotion of renewable energy and energy efficiency.

Energy SuppliersWater Supply
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Coopérative Autovoltaic-VS Logo

Coopérative Autovoltaic-VS 

Sion · Since 2019

The core activity of Autovoltaic-VS is the promotion and support of carport projects for photovoltaic systems in Switzerland, particularly in the canton of Valais. The company offers consulting, planning and accompaniment for the installation of solar energy systems, where customers carry out the installation themselves. The goal is to promote the use of renewable energy and drive the energy transition in Switzerland.

Solar & Photovoltaics
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Coopérative Bâtir Groupé Logo

Coopérative Bâtir Groupé 

Grandvaux · Since 2007

The core activity of Ecopol is to promote sustainable and innovative projects, particularly in the areas of real estate and micro-enterprises. This includes coaching, incubation, research and development, as well as providing resources and support to micro-entrepreneurs and small and medium-sized enterprises (SMEs). The company also offers educational and training programs and has a network of partners and cooperation partners. Furthermore, Ecopol develops and publishes publications and studies on topics such as sustainable development and innovation.

Sustainability Sector
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Coopérative OPTIMA SOLAR Fribourg-Freiburg Logo

Coopérative OPTIMA SOLAR Fribourg-Freiburg 

Fribourg · Since 2015

The core activity of OptimaSolar Fribourg-Freiburg consists of planning, building and operating photovoltaic systems on the roofs of companies, public buildings and private homes to produce and sell renewable energy in the form of solar power.

Solar & Photovoltaics
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COOPERATIVE SOLAIRE NEUCHÂTEL Logo

COOPERATIVE SOLAIRE NEUCHÂTEL 

Neuchâtel · Since 2016

The core activity of Coopsol is the planning, implementation and operation of solar power plants in the Neuchâtel region of Switzerland, financed through a participatory financing model, where members of the company can acquire shares in the plants.

Solar & Photovoltaics
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Coordinale GmbH Logo

Coordinale GmbH 

Zurich · Since 2022

The core activity of Coordinale Consulting is to advise and support clients in the development and implementation of sustainable strategies in the field of real estate management, particularly with regard to compliance with ESG criteria (Environmental, Social and Governance) and the reduction of CO2 emissions. This includes services such as: * Sustainability consulting and strategy development * Conducting feasibility studies and energy optimization analyses * Creating sustainability certificates and reports * Project management for construction projects with a focus on sustainability * Consulting on the selection and implementation of sustainability certifications The company supports clients in maximizing the value of their real estate portfolios through sustainable strategies and helps them fulfill their environmental and social responsibilities.

Sustainability Sector
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Coordination textile genevoise Logo

Coordination textile genevoise 

Plan-Les-Ouates · Since 2006

The core activity of the company 'Coordination Textile Genevoise' consists of collecting, recycling and reusing used textiles, shoes and accessories in the canton of Geneva. The company operates a network of collection containers and boutiques where the collected textiles are sorted, cleaned and sold. The proceeds from the sale are used to finance the activities of the member associations and create jobs.

Sustainability Sector
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Copernicus Technologies GmbH Logo

Copernicus Technologies GmbH 

Basel · Since 2022

The core activity of Copernicus Technologies is the development and provision of solutions for remote monitoring and tracking, particularly in the areas of nature conservation, hazard prevention and international tracking. This includes the development of hardware and software, the manufacture of tracking devices and the provision of network infrastructure. The focus is on monitoring wildlife, but also on tracking livestock and monitoring environmental parameters. The company also offers a platform (Wonderland) that enables the visualization and analysis of the collected data.

Sustainability Sector
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Solar-Factory GmbH Logo

Solar-Factory GmbH 

Pfaffhausen · Since 2024

Solar-Factory GmbH designs and implements energy solutions focused on photovoltaic systems, battery storage and smart‑energy technologies; services include planning, consultancy, installation, cleaning, and ongoing service and maintenance.

Solar & Photovoltaics
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COQUOZ Démolition et fils SA Logo

COQUOZ Démolition et fils SA 

Muraz (Collombey) · Since 2008

Waste Management Industry
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Cormo AG Logo

Cormo AG 

St-Aubin Fr · Since 2013

The core activity of CORMO is the production of peat-free casing soil made from maize straw for long-term sustainable mushroom cultivation.

Sustainability Sector
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Correvon Solaire SA Logo

Correvon Solaire SA 

Donneloye · Since 2024

Correvon Solaire SA installs photovoltaic solar systems and provides related services such as energy storage, electric vehicle charging stations and smart energy management. The company also handles administrative procedures, roof and carpentry assessments and designs bespoke carport solutions.

Solar & Photovoltaics
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Correntics AG Logo

Correntics AG 

Zurich · Since 2021

The core activity of Correntics is to provide services and solutions in the field of climate risk management, particularly in the areas of: climate risk analysis, sustainability assessment, climate risk data analysis, and real-time hazard data. The company supports businesses in understanding and managing the impacts of climate change on their supply chains and business models. Correntics offers consulting services and technical solutions to help businesses improve their resilience and sustainability in a rapidly changing environment.

Sustainability SectorSoftware Development
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Cosvegaz SA Logo

Cosvegaz SA 

Cossonay-Ville · Since 1980

Cosvegaz SA distributes natural gas and biogas and is responsible for the technical management of its gas network, including installation, connections and maintenance. The company is part of the Holdinova group and has transferred energy sales to its sister company Energiapro; both firms jointly handle distribution to the municipalities served by the Cosvegaz network.

Energy Suppliers
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Cotierra AG Logo

Cotierra AG 

Zurich · Since 2023

Cotierra AG is a company that specializes in the development and implementation of solutions for the permanent removal of carbon from the atmosphere through soil restoration and the support of rural communities through the production of biochar. The core activities include: * The production of biochar from coffee waste through a unique reactor system that improves soil health and recycles waste. * Supporting farmers in the proper application of biochar to improve soil and plant health and reduce the use of fertilizers. * Monitoring and verifying emission reductions through the use of IoT technology and digital apps. * Providing solutions for companies to offset their carbon emissions and decarbonize their supply chains. Cotierra AG's core activities focus on sustainable agriculture, reducing greenhouse gas emissions, and supporting rural communities.

Sustainability Sector
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Cottagon Sustainable Systems AG Logo

Cottagon Sustainable Systems AG 

Fribourg · Since 2025

Cottagon Sustainable Systems AG provides consulting and project development services to support organisations in digital, societal and environmental transformation. Services include business analysis, digitalisation, knowledge management, risk and asset lifecycle management, platform and cybersecurity solutions via partnerships with SoftExpert and TSPLUS, and support for international trade processes such as OEA certification.

Management ConsultingSustainability Sector
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CP Recycling-Management Sàrl Logo

CP Recycling-Management Sàrl 

Villaz-St-Pierre · Since 2018

The core activity of CP Recycling Management is process optimization and consulting in the field of waste disposal and valorization, particularly in the sectors of construction waste, communities and industry. The company offers specialized services such as optimizing waste disposal, valorizing production waste and advising companies and communities on environmental issues.

Waste Management Industry
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CrameriMT GmbH Logo

CrameriMT GmbH 

Igis · Since 2021

The core activity of Crameri MT is the planning, installation and maintenance of solar projects, particularly photovoltaic systems, as well as consulting and supporting customers in decarbonization and the use of renewable energies. The company also offers services in the field of e-mobility and smart home solutions.

Technical Consulting & EngineeringSolar & Photovoltaics
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Crans-Montana Energies SA Logo

Crans-Montana Energies SA 

Crans-Montana · Since 2013

The ACCM (Association des Communes de la Moubra) company is a public administration unit that offers various services and activities to the municipalities in the region. The company's core activities include: Administration and Security: Police, Fire Department, Court, Samaritans; Economic Development: Support for start-ups, economic studies, energy consulting, financial assistance; Social Services: Youth, Integration and Social Services; Environmental Protection: Waste Management, Environmental Protection Measures; Leisure and Tourism: Sports Facilities, Library, Hospitality; Transportation: Taxi Services. Overall, the ACCM company offers a wide range of services and activities aimed at supporting and improving the daily lives of residents in the region.

Energy Suppliers
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crea Natura GmbH Logo

crea Natura GmbH 

Wetzikon Zh · Since 2021

The core activity of crea Natura GmbH is the provision of services and products in the fields of ecology, landscape architecture, and garden and landscape maintenance, particularly in the areas of: Ecology: consulting, planning, design, construction supervision, and implementation of projects in the field of nature conservation, watercourse restoration, and species protection. Landscape architecture: planning and design of green spaces, gardens, and landscapes. Garden and landscape maintenance: maintenance and upkeep of gardens and landscapes. Development and marketing of products such as AmphiCLIMB (amphibian escape system), EcoTerra Roof (green roof substrate), and nesting aids for various animal species. The company also offers research and consulting services and is involved in various nature conservation projects and initiatives.

Sustainability Sector
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CreaNATIRA GmbH Logo

CreaNATIRA GmbH 

Windisch · Since 1998

The core activity of creaNatira GmbH is practical nature conservation, particularly the planning, implementation and maintenance of nature conservation projects, such as renaturation, dry stone walls, extensive pastures, forestry work, maintenance work, neophyte control and pond construction, on behalf of nature conservation organizations, municipalities, cantons, federal government, private individuals, companies and agricultural businesses.

Sustainability Sector
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CRE & ART Barbara Berchtold Logo

CRE & ART Barbara Berchtold 

Jona · Since 1999

The company's core activity is the regulation and supervision of energy markets in France, particularly in the areas of electricity and natural gas, to protect consumer interests.

Energy Suppliers
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creato - Genossenschaft für kreative Umweltplanung Logo

creato - Genossenschaft für kreative Umweltplanung 

Ennetbaden · Since 1990

The core activity of Creato is environmental planning and consulting, particularly in the areas of water, landscape, settlement, soil and technical environmental protection. The company offers services such as project planning, management and accompaniment, consulting for authorities and private individuals, environmental impact assessments, landscape planning, water ecology and renaturation, noise assessment, air pollutant calculation and other environmentally relevant services.

Sustainability Sector
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CRIDEC, Centre de ramassage et d'identification des déchets spéciaux S.A. Logo

CRIDEC, Centre de ramassage et d'identification des déchets spéciaux S.A. 

Eclépens · Since 1985

CRIDEC, Centre de ramassage et d'identification des déchets spéciaux S.A. collects, identifies and treats special (hazardous) wastes and provides transport and disposal services. The company operates an accredited laboratory (ISO/IEC 17025), supplies containers, offers on-site collection and turnkey waste-management services ('CRIDEC SERVICES'), and markets the Naturesorb absorbent.

Waste Management Industry
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crowda Sustainability GmbH Logo

crowda Sustainability GmbH 

Zurich · Since 2020

The core activity of crowda Sustainability GmbH is to support companies in their sustainable transformation and risk minimization. To this end, crowda offers various services, such as identifying sustainability risks, developing strategies for risk minimization, implementing measures to increase sustainability, and providing partners to support the implementation of sustainability goals.

Sustainability Sector
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Crystal NTE SA Logo

Crystal NTE SA 

Penthaz · Since 1999

The core activity of Crystal NTE SA is the development and distribution of products and solutions for the treatment of air and water, as well as for the optimization of energy consumption. Specifically, this includes: air treatment through ionization (Système ionair), electrostatic filters (Filtre électrostatique type FE) and UV radiation (INDU & ZERO); water treatment through vivification (EWO) and decalcification (Narewa); and optimization of energy consumption through kinetic energy (KPP Centrale d'énergie Cinétique) and natural energy sources (MAXiiMUS). The company offers these solutions to various target groups, including companies, technicians, and private individuals.

Sustainability Sector
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C. Savary Sàrl Logo

C. Savary Sàrl 

Sâles (Gruyère) · Since 2001

The company C. Savary Sàrl provides services in the fields of heating, plumbing and solar energy. In particular, it installs, maintains and repairs heating systems, sanitary facilities and solar systems, including the installation of thermal and photovoltaic solar modules.

Solar & Photovoltaics
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CSI Services SA Logo

CSI Services SA 

Givrins · Since 2019

CSI Services SA offers a range of services focused on the real estate and hospitality sectors. The company's core activities include: * Real Estate Management: CSI provides programs for the construction and renovation of properties, including energy-efficient renovations and sustainable solutions. * Hospitality Management: The company supports hotels in optimizing their reservation processes, increasing their profitability, and improving their energy efficiency. * Automation and Digitalization: CSI develops solutions for automating processes in the hospitality industry, such as managing reservations and optimizing rates. * Sustainability and Environmental Protection: The company places a strong emphasis on developing sustainable and environmentally friendly solutions for the real estate and hospitality sectors. Overall, the core activity of CSI Services SA can be described as 'sustainable real estate and hospitality management'.

Sustainability Sector
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CT Umwelt AG Logo

CT Umwelt AG 

Küssnacht Am Rigi · Since 2021

CT Umwelt AG is an operating company for the remediation of the Chüelochtobel site. It is responsible for landfill remediation, stream diversion and the implementation of deposition and environmental requirements.

Waste Management Industry
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Current AG Logo

Current AG 

Zurich · Since 2002

The core activity of Current AG encompasses the development and investment in renewable energy projects, particularly in the field of solar energy and hydrogen technology. The company focuses on accelerating the transition to a more sustainable and CO2-neutral energy future by developing innovative solutions such as high-altitude solar installations, hydrogen generators, and compressors. Additionally, the company is also active in shipping and shipbuilding, acting as a business facilitator and financial arranger.

Solar & Photovoltaics
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Dachplan AG Logo

Dachplan AG 

Horn · Since 2023

Dachplan AG provides roof, facade and solar services, including flat and pitched roofs, ventilated facades, waterproofing, solar installations and roof and facade maintenance. The company offers maintenance plans and a 24‑hour emergency on‑call service.

Specialized Construction ActivitiesRoofingSolar & Photovoltaics
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Dadi & Dunkel Energy Sàrl Logo

Dadi & Dunkel Energy Sàrl 

Lausanne · Since 2002

The company dd-energy primarily focuses on services in the field of energy efficiency and sustainability, particularly in Switzerland and the Romandy region. The core activities include: Consulting services in the areas of energy efficiency, Minergie, and CECB; Engineering services for heating, ventilation, and solar systems; Planning and implementation of solar projects; Collaboration with customers and partners to achieve sustainability goals. The company supports private individuals, businesses, and public institutions in implementing energy efficiency measures and utilizing renewable energy sources.

Solar & Photovoltaics
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Daicos AG Logo

Daicos AG 

Edlibach · Since 2001

The core activity of Daicos AG is the development and implementation of innovative and sustainable concepts and solutions in the areas of recycling, environmental technology, and energy generation. This includes, in particular: the planning, design, and realization of recycling facilities and processes for various materials such as biomass, paper, plastics, metals, and waste; the development and implementation of technologies for energy generation from waste and biomass, such as gasification and combustion; the provision of consulting and engineering services for companies and organizations in the field of environmental technology and recycling; and the development of solutions for reducing CO2 emissions, such as decarbonization of CO2 and the production of CO2-free energy from fossil fuels.

Sustainability Sector
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DAM 10 AG Logo

DAM 10 AG 

Amriswil · Since 2018

The core activity of the company 'there for you' is to support companies in the development and implementation of Corporate Social Responsibility (CSR) projects and sustainable initiatives, particularly in the areas of climate protection, animal welfare, child aid and humanitarian projects. The company provides a platform for companies to coordinate their donation activities, activate employees and support effective and transparent projects.

Sustainability Sector
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Danfoss AG Logo

Danfoss AG 

Frenkendorf · Since 1965

The company operates in the fields of energy efficiency, renewable energies and climate protection. The core activities include the development and implementation of solutions for energy optimization of buildings, particularly multi-family houses, as well as the planning, construction and operation of district heating systems and decentralized systems in the local heating sector. In addition, the company offers consulting and service services for the integration of renewable energies and the increase of energy efficiency in various industries.

Sustainability Sector
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D'Angelo SA Logo

D'Angelo SA 

Quartino · Since 1987

The core activity of D'Angelo SA is the sale and installation of thermosanitary systems, including heating, burners, alternative energy, sanitary technology, ventilation and dehumidification, and air conditioning.

Solar & Photovoltaics
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Daniel Knecht Umweltbüro GmbH Logo

Daniel Knecht Umweltbüro GmbH 

Aesch Bl · Since 2019

The core activity of Daniel Knecht Umweltbüro GmbH is ecological consulting and planning in the fields of nature conservation, environment, and landscape. The specific activities include: conducting natural inventories and environmental impact assessments (EIA), protected area management and biotope protection, species promotion and green space management, invasive species control and water revitalization, status reports for water bodies and networking projects, open space design and vegetation and habitat mapping, monitoring and effectiveness control of environmental projects, and regional seed production and ecological consulting in the planning and implementation of projects. The company thus offers a wide range of services in the field of ecological consulting and nature conservation.

Sustainability Sector
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databaum Sàrl Logo

databaum Sàrl 

Lausanne · Since 2022

The core activity of databaum is the development and provision of a technology for sustainable agriculture, specifically a disease management tool for plant protection. This tool uses self-developed sensors and artificial intelligence to predict, confirm and combat plant diseases, thereby reducing the use of pesticides and increasing farmers' yields.

Sustainability Sector
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Davos Biogas GmbH Logo

Davos Biogas GmbH 

Davos Dorf · Since 2004

The core activity of Duchli Ranch is agriculture, particularly livestock farming (dairy cows, Scottish Highland cattle, fattening pigs) and the operation of a biogas plant. Additionally, the company offers a holiday apartment for rent.

Energy Suppliers
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DC Care AG Logo

DC Care AG 

Wallisellen · Since 2024

The core activity of DC Care AG is the maintenance and care of photovoltaic systems, including commissioning, regular inspections, preventive maintenance, coordination of cleaning work, fault management and support, in order to maximize the efficiency and longevity of the systems and enable customers to achieve optimal results from their investment in renewable energy.

Sustainability Sector
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DCP Energie GmbH Logo

DCP Energie GmbH 

Neftenbach · Since 2020

The core activity of Sunnewind (DCP Energie GmbH) is the planning, consulting and support of customers in the construction of solar systems, both as a turnkey service and for self-construction. The company offers 360° support for solar systems, including consulting, planning and execution, and enables customers to build and operate their own solar system.

Solar & Photovoltaics
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Dealex Anlagenbau GmbH Logo

Dealex Anlagenbau GmbH 

Kreuzlingen · Since 2024

Dealex Anlagenbau GmbH designs and implements systems for fire protection, photovoltaic power and security technology. Services include planning, installation and maintenance of fire detection and aerosol extinguishing systems, intrusion and access control systems, photovoltaic installations, commercial and residential energy storage, and EV charging infrastructure.

Technical Consulting & EngineeringSpecialized Construction InstallationsSolar & Photovoltaics
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Déconstruction D3 SA Logo

Déconstruction D3 SA 

Bottens · Since 2011

The core activity of Déconstruction D3 SA consists of carrying out asbestos removal (désamiantage), deconstruction (safe and environmentally friendly demolition and dismantling work) and decontamination (decontamination and cleaning of polluted sites) in Switzerland, particularly in the Romandy region.

Waste Management Industry
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Deflorin Elektroanlagen GmbH Logo

Deflorin Elektroanlagen GmbH 

Flims Dorf · Since 2007

The core activity of Deflorin Flims GmbH encompasses comprehensive electrical installations, IT services, smart home solutions, photovoltaic systems, computer and telecommunications services, including remote maintenance and VoIP telephony.

Electrical Planning & InstallationSolar & 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.