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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,089 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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9'017 companies found

SolarPartner GmbH Logo

SolarPartner GmbH 

Wattwil · Since 2010

The core activity of Solarpartner GmbH is advising and supporting customers in their transition to alternative energy sources, particularly in the field of photovoltaics. The company offers solutions and products for the installation and operation of solar systems and supports customers in planning and implementing projects in the field of renewable energies.

Solar & Photovoltaics
View profile5(1)
Solarpower AG Logo

Solarpower AG 

Köniz · Since 2023

The core activity of Solarpower AG is the planning and installation of solar roofs and roof technology, as well as consulting and implementing sustainable energy solutions, particularly in the field of solar energy and building envelopes. This also includes the installation of power storage systems, roof renovation and sheet metal work.

Solar & Photovoltaics
View profile5(1)
Solarpuls AG Logo

Solarpuls AG 

Lengnau Ag · Since 2023

The core activity of Solarpuls is the planning, implementation and financing of photovoltaic systems on rooftops of properties, as well as the rental of rooftop space for the construction of such systems. The company also offers consulting and project management services for the installation of solar systems.

Solar & Photovoltaics
View profile5(1)
Solarpuls Anlagen AG Logo

Solarpuls Anlagen AG 

Lengnau Ag · Since 2014

Solarpuls Anlagen AG develops, finances, installs and operates photovoltaic systems and provides contracting, project management and roof‑leasing services. The company works with property owners and investors, offering to finance, build and operate systems while supplying the generated solar electricity under agreed contracting terms.

Solar & Photovoltaics
View profile5(1)
SOLAR REPORT Sàrl Logo

SOLAR REPORT Sàrl 

Plan-Les-Ouates · Since 2009

The core activity of Solar Report is the installation, maintenance and cleaning of solar systems, particularly photovoltaic systems, in Switzerland, with a focus on the canton of Geneva. The company also provides consulting services to support customers in selecting and implementing solar systems.

Solar & Photovoltaics
View profile5(1)
Solar Services Hubert Pierre Logo

Solar Services Hubert Pierre 

Bramois · Since 2018

Solar Services Hubert Pierre provides analysis, consulting, design, installation and electrical connection of photovoltaic and solar‑thermal systems, with heat‑pump interventions carried out via partners. Services include monitoring and consumption optimization, panel cleaning, maintenance contracts, periodic checks, repairs, inverter firmware updates and administrative follow‑up for subsidies (Pronovo/Swissgrid).

Solar & Photovoltaics
View profile5(1)
Solar Services Sàrl Logo

Solar Services Sàrl 

Bramois · Since 2023

Solar Services Sàrl provides photovoltaic and thermal solar solutions for residential clients and customized projects. Services include site analysis and advice, installation and electrical connection, performance optimization and monitoring, panel cleaning, and after‑sales support including administrative follow‑up for subsidies and grid procedures.

Solar & Photovoltaics
View profile5(1)
Solarwall SA Logo

Solarwall SA 

Villars-Ste-Croix · Since 2014

The core activity of Solarwall SA/AG is the integration of architectural photovoltaic solutions into buildings, particularly into facades and roofs. The company offers comprehensive services, from planning and consulting to the installation and assembly of photovoltaic systems, as well as maintenance and inspection. Solarwall SA/AG specializes in the holistic design of photovoltaic projects and provides customer-specific solutions for the integration of solar energy into buildings.

Solar & Photovoltaics
View profile5(1)
Solarwind Swiss GmbH Logo

Solarwind Swiss GmbH 

Lucerne · Since 2021

The core activity of SolarWind Swiss GmbH is the planning, design and brokerage of renewable energy systems, particularly photovoltaic systems and heat pumps, for private and commercial customers. The company offers consulting, conception and implementation of energy projects, with the actual installation and assembly being carried out by carefully selected subcontractors.

Solar & Photovoltaics
View profile5(1)
Solgal Sagl Logo

Solgal Sagl 

Camorino · Since 2022

The core activity of Solgal Sagl is the planning, installation and maintenance of photovoltaic systems for private and industrial customers. They offer a comprehensive range of services, including consulting, financing, installation and maintenance of solar energy systems, to support customers in their transition to renewable energy sources.

Solar & Photovoltaics
View profile5(1)
SOLTOP Energie AG Logo

SOLTOP Energie AG 

Elgg · Since 2021

The core activity of SOLTOP Energie AG is the development, production and distribution of solar technology and energy systems for the use of renewable energies, particularly from sun, earth, air and water. The company offers complete energy systems for single-family homes, multi-family homes, apartment buildings, hotel complexes, schools and sports facilities, and operates its own production facilities in Switzerland and Germany. In addition, the company provides comprehensive service offerings, including installation, maintenance and repair of energy systems.

Solar & Photovoltaics
View profile5(1)
Sostro AG Logo

Sostro AG 

Gelfingen · Since 2023

The core activity of Sostro AG is the planning, installation and maintenance of solar systems for private households, commercial properties and new buildings, with the aim of offering sustainable energy solutions and improving the environmental balance.

Solar & Photovoltaics
View profile5(1)
Spezialabbruch Marcel Solenthaler Logo

Spezialabbruch Marcel Solenthaler 

Rheineck · Since 2011

Spezialabbruch Marcel Solenthaler is a demolition company specializing in steel demolition and interior demolitions. Services include demolition and dismantling (walls, buildings, steel structures, heating systems, machinery, tanks), clearance and gutting of industrial and private properties, and transport and proper disposal of steel, rubble and special waste, with projects carried out across Switzerland.

Waste Management Industry
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Square Commodities SARL Logo

Square Commodities SARL 

Morges · Since 2019

The core activity of Square Commodities is providing market data, analysis and consulting services in the field of renewable fuels, particularly with regard to regulatory developments, market trends and forecasts. The company offers a platform for customers to access comprehensive data and analysis, enabling them to make informed decisions in the field of renewable fuels.

Sustainability Sector
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Starkenbach Deponie AG Logo

Starkenbach Deponie AG 

Alt St. Johann · Since 2013

The core activity of Schällibaum Bau AG encompasses the areas of building construction, civil engineering, renovation, conversion and landscaping. The company also offers services in the fields of landfill management, recycling, concrete and precast concrete works.

Waste Management Industry
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Stefan Marty, Landwirtschaft und Gastro-Recycling Logo

Stefan Marty, Landwirtschaft und Gastro-Recycling 

Wollerau · Since 2021

The core activity of Marty Recycling is the disposal and recycling of organic waste, in particular kitchen waste, as well as the production of renewable energies such as eco-electricity, biogas, biodiesel and district heating. The company also offers services in the field of waste disposal and recycling, and produces natural fertilizers for agriculture.

Farm Shops & FarmsWaste Management Industry
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Steinlin Energie AG Logo

Steinlin Energie AG 

Wil Sg · Since 1989

The core activity of Steinlin Energie AG is the provision of services and solutions in the field of renewable energies, particularly in the areas of photovoltaics, e-mobility, energy storage and energy management. The company also offers financing and refinancing options.

Solar & Photovoltaics
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Stiftung BASE (Basel Agency for Sustainable Energy) Logo

Stiftung BASE (Basel Agency for Sustainable Energy) 

Basel · Since 2001

The core activity of BASE is the development of innovative business models and financing mechanisms for sustainable energy and climate projects. This includes in particular the areas of energy efficiency, including sustainable cooling solutions, energy access for low-income households and underserved communities, and electromobility, including the development of business models and financing mechanisms in collaboration with the public sector. BASE focuses on developing market-oriented solutions for public and private organizations to promote investments in climate protection projects and overcome market barriers.

NGOs & NPOsSustainability Sector
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Stiftung für angepasste Technologie und Sozialökologie Logo

Stiftung für angepasste Technologie und Sozialökologie 

Liestal · Since 1979

The Ökozentrum provides consulting, education and support for companies, municipalities, schools and organizations in the field of sustainability and climate protection. The core activity of the company is to empower people and organizations to implement environmentally friendly changes in their daily lives and organizations, with the goal of achieving climate goals and shaping a sustainable future.

NGOs & NPOsSustainability Sector
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stoeckli.net Logo

stoeckli.net 

Dornach · Since 2009

The core activity of Stoeckli.net includes the development and provision of solutions in the areas of renewable energy, electronics and software.

Technical Consulting & EngineeringSolar & PhotovoltaicsSoftware Development
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Strahlkraft AG Logo

Strahlkraft AG 

Hünenberg · Since 2016

The core activity of Strahlkraft AG is the cleaning and maintenance of solar systems, including the inspection and control of solar modules using drones and thermography. The company also offers specialized services such as cleaning solar systems with a cleaning robot called "Gekko".

Solar & Photovoltaics
View profile5(1)
Stromlokal GmbH Logo

Stromlokal GmbH 

Hombrechtikon · Since 2015

The core activity of Stromlokal is the planning, installation and operation of photovoltaic systems (solar systems) as well as the rental of roof surfaces for the installation of such systems (roof rental/contracting).

Solar & Photovoltaics
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Stromwerk Elektro GmbH Logo

Stromwerk Elektro GmbH 

Balterswil · Since 2024

The core activity of Stromwerk Elektro GmbH is the execution of electrical installations and low-voltage installations of all kinds, as well as the support of electrical installation companies and inspection companies.

Electrical Planning & InstallationSolar & Photovoltaics
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Sumatrix AG Logo

Sumatrix AG 

Gontenschwil · Since 2006

The company provides a platform for creating and managing websites, including domain management and providing tools for designing and operating websites.

Solar & PhotovoltaicsProperty Management
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Sunone GmbH Logo

Sunone GmbH 

Birrwil · Since 2018

Sunone GmbH sells photovoltaic products and complete solar systems, including solar modules, inverters, mounting systems and storage solutions. The company operates an online shop, supplies complete PV packages for residential and commercial customers, and trades used PV modules sourced from insolvency liquidations and surplus stock.

Solar & Photovoltaics
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Swiss Blue Salmon AG Logo

Swiss Blue Salmon AG 

Näfels · Since 2020

The core activity of Swiss Blue Salmon AG is the sustainable farming of Atlantic salmon in land-based Recirculating Aquaculture Systems (RAS). The company aims to play a leading role in sustainable aquaculture by producing healthy and sustainable fish with a minimal ecological footprint.

Sustainability Sector
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Swiss Eco Line AG - save water, energy and resources Logo

Swiss Eco Line AG - save water, energy and resources 

Chur · Since 2015

The core activity of Swiss Eco Line is the development, distribution and sale of innovative products and solutions that enhance the quality and safety of water, improve the efficiency of its treatment and processing, and reduce the waste of resources around water. In particular, the company focuses on the sustainable and efficient use of water throughout the entire water cycle.

Sustainability Sector
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Swiss Energy Solar SA Logo

Swiss Energy Solar SA 

Rossens Fr · Since 1992

Swiss Energy Solar SA develops, manufactures and supplies solar modules and integrated photovoltaic systems. Its product range includes monocrystalline modules (9BB–16BB), half‑cell, PERC and TOPCon variants, bifacial modules and mounting solutions such as ballasted systems.

Solar & Photovoltaics
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Swiss Green Solar SA Logo

Swiss Green Solar SA 

Gland · Since 2013

Swiss Green Solar SA provides design, installation and maintenance of photovoltaic, solar thermal and heat pump systems, and offers battery storage and energy management solutions. It serves private customers, businesses and public entities in French-speaking Switzerland.

Solar & Photovoltaics
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SwissWinds Holding SA Logo

SwissWinds Holding SA 

Grimisuat · Since 2023

SwissWinds Holding SA is a company that provides wind farm development, construction, and operational and maintenance services. The group includes entities responsible for planning, maintenance, production optimisation and international renewable-energy project development, with experience in complex terrain.

Energy Suppliers
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SwissWinds Services GmbH Logo

SwissWinds Services GmbH 

Bourg-St-Pierre · Since 2009

SwissWinds Services GmbH provides maintenance and production-optimization services for wind farms, with a focus on hard-to-reach or remote sites. Services include remote monitoring, technical and financial reporting, turbine parameter tuning, and planning of maintenance and on-site interventions.

Energy Suppliers
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Systelec Sàrl Logo

Systelec Sàrl 

Noville · Since 2022

Systelec Sàrl is an electrical contractor that provides installation, maintenance and repair services. Its offerings include power and low-voltage systems, home automation (KNX, DALI), photovoltaic project implementation, e‑mobility charging stations, security systems and periodic inspections for compliance.

Solar & Photovoltaics
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Targray Markets Europe SA Logo

Targray Markets Europe SA 

Geneva · Since 2018

The core activity of Targray Group is the sourcing, transportation, storage, trading and distribution of raw materials and advanced materials for sustainable industries, particularly in the field of renewable energy. This includes, among other things: The production and distribution of renewable fuels such as biodiesel, biogas and green hydrogen; The development and distribution of products for solar energy, such as photovoltaic cells and solar materials; The sourcing and distribution of sustainable cotton; The development and distribution of battery materials and solutions; The trading and distribution of CO2 certificates and other climate protection products. The company positions itself as a global market leader in the field of sustainable raw materials and materials, offering innovative solutions to the challenges of the energy transition and climate protection.

Sustainability Sector
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Tectorum Swiss GmbH Logo

Tectorum Swiss GmbH 

Kaiseraugst · Since 2023

The core activity of Tectorum Swiss GmbH is the planning, execution and installation of photovoltaic and electrical systems.

Solar & Photovoltaics
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The Gold Standard Foundation Logo

The Gold Standard Foundation 

Cointrin · Since 2006

The core activity of Gold Standard is to develop and certify standards for climate protection projects and investments, ensuring the effectiveness of measures to achieve the global sustainability goals (SDGs) and climate protection. This includes the development of methods and tools for measuring and maximizing the impact of climate protection projects, the certification of projects and investments that meet the Gold Standard, as well as providing consulting and support to companies and organizations in developing climate protection strategies and implementing measures to reduce greenhouse gas emissions.

Sustainability Sector
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Thomas Lanz Haustechnik GmbH Logo

Thomas Lanz Haustechnik GmbH 

Vinelz · Since 2021

The core activity of Thomas Lanz - Haustechnik GmbH Spenglerei & Bedachungen is the execution of work related to roofs and facades, particularly in the areas of: sheet metal work, lightning protection systems, pitched roofs, flat roofs, facade cladding, special work, solar systems, Velux roof windows and roof glazing. The company offers renovation and new construction services for private individuals and architects and has specialized in these specific works since 1996.

RoofingSheet Metal WorkSolar & Photovoltaics
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Thurgie AG Logo

Thurgie AG 

Sirnach · Since 2000

The core activity of Thurgie AG is energy supply and consulting, particularly in the field of electricity products and services, including solar power, energy consulting, electromobility and smart meter services.

Energy Suppliers
View profile2(1)
Tiefgrün GmbH Logo

Tiefgrün GmbH 

Zurich · Since 2018

The core activity of the company 'tiefgrün GmbH' is the consulting and accompaniment of organizations, businesses and authorities in sustainability processes. This includes the development of strategies and solutions for a sustainable future, the consideration of ecological, social and economic aspects, as well as support in the implementation of sustainability measures.

Sustainability Sector
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TIFFY Power Storage AG Logo

TIFFY Power Storage AG 

Zug · Since 2022

The core activity of TIFFY Power Storage AG is the development, manufacture and marketing of environmentally friendly energy storage systems, in particular lithium-free sodium-ion energy storage systems, for the DACH market (Germany, Austria, Switzerland).

Sustainability Sector
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Topolino Naturprodukte GmbH Logo

Topolino Naturprodukte GmbH 

Lenzburg · Since 2013

The core activity of Topolino Naturprodukte GmbH is the production and distribution of biological and ecological cleaning products.

Sustainability Sector
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tritec AG Logo

tritec AG 

Steg Vs · Since 2009

tritec AG provides photovoltaic systems and related services, including project planning, installation, commissioning and ongoing maintenance for residential customers, large‑scale, high‑alpine and ground‑mounted projects. The company also offers battery storage solutions, e‑mobility charging infrastructure, wholesale distribution and training services.

Solar & Photovoltaics
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tritec AG Logo

tritec AG 

Eischoll · Since 2016

tritec AG provides solar and photovoltaic solutions, offering consulting, system design, installation, commissioning and maintenance for residential, commercial and large-scale projects. The company also operates wholesale and an online shop, provides training and offers financing services including PV-contracting.

Solar & Photovoltaics
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tritec AG Logo

tritec AG 

Chur · Since 2016

tritec AG provides solar solutions and services for photovoltaic systems, including consultation, customised planning, installation, commissioning and maintenance. The company also operates a wholesale business with an online shop, supports large-scale projects (including financing/PV contracting) and offers service, training and online tools such as a solar calculator.

Solar & Photovoltaics
View profile1(1)
tritec AG Logo

tritec AG 

Aarberg · Since 2022

tritec AG is a provider of solar solutions and photovoltaic systems. It performs project consulting, system design, installation, commissioning and long-term service, and supplies storage, e-mobility, wholesale and financing/PV‑contracting services for private customers and large-scale projects.

Solar & Photovoltaics
View profile1(1)
tritec AG Logo

tritec AG 

Ruswil · Since 2023

tritec AG provides solar solutions and services for photovoltaic systems, including consultation, customized planning, installation, commissioning and ongoing maintenance. The company serves private customers, large-scale projects and wholesale clients and also offers storage options, e‑mobility products and financing models such as PV contracting.

Solar & Photovoltaics
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tritec AG Logo

tritec AG 

Regensdorf · Since 2024

tritec AG provides solar solutions and photovoltaic systems, including consulting, project design, installation and ongoing maintenance. The company serves residential customers, large-scale projects and wholesale clients, and also offers services, training and an online shop.

Solar & Photovoltaics
View profile1(1)
Ul Solar SA Logo

Ul Solar SA 

Gorduno · Since 2022

The core activity of Ul Solar SA is the design, implementation and sale of photovoltaic systems in the canton of Ticino, Switzerland.

Solar & Photovoltaics
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United Waters International AG Logo

United Waters International AG 

Zug · Since 2005

The core activity of United Waters International AG (UWI) is the development and provision of solutions for water treatment and purification. The company offers environmentally friendly and efficient solutions for water cleaning, particularly for the municipal market in various countries, including China, India and Sweden.

Sustainability Sector
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UNIWASTEC AG Logo

UNIWASTEC AG 

Rotkreuz · Since 2021

UNIWASTEC AG is a technology company that converts waste into energy and industrial-grade raw materials. It develops and delivers integrated waste-to-energy solutions — including project planning, engineering, financing and plant operation — and provides technologies for producing green hydrogen, green electricity and synthetic fuels.

Waste Management Industry
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Upcy Sàrl Logo

Upcy Sàrl 

Sion · Since 2024

The company Upcy offers a variety of activities and services centered around creativity, sustainability, and upcycling. The core activities of the company can be described as follows: * Operating a store selling upcycled products from local artists * Offering courses and workshops in the fields of couture and upcycling for adults and children * Renting out a creative workspace for individual or group use * Providing a repair and alteration service for clothing and textiles Overall, the company focuses on promoting creativity, sustainability, and upcycling through various activities and services.

Sustainability Sector
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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.