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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,805 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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9'003 companies found

Didier Calame - Assainissement, Vidange Sàrl Logo

Didier Calame - Assainissement, Vidange Sàrl 

La Chaux-De-Fonds · Since 2022

The company Didier Calame Assainissement - Vidange is a specialist in the field of sewer cleaning and maintenance. The core activities include: * Drain clearance (unclogging of sewers) * Sewer cleaning (cleaning of sewers) * Sewer emptying (emptying of sewers, decanters, pits, etc.) * Camera inspection (camera-based inspection of sewers) * Building service (maintenance and cleaning of sewers in buildings) * Mobile toilets (rental of mobile toilets) * Transport (transport of materials and wastewater) The company offers its services to private individuals, companies and public institutions, covering a wide range of needs in the field of sewer cleaning and maintenance.

Waste Management Industry
View profile4.7(12)
Elektro Brunner AG Logo

Elektro Brunner AG 

Interlaken · Since 2011

The company offers a wide range of services and products in the fields of electrical engineering and communication technology. The core activities include: electrical installations, PV systems (photovoltaics), e-mobility (charging infrastructure for electric vehicles), communication technology (fiber optic installations), building automation, device testing and maintenance, lighting, and security technology. The company also provides planning, consulting and service for these areas.

Solar & Photovoltaics
View profile4.7(12)
Elektro Bürgin AG Logo

Elektro Bürgin AG 

Winterthur · Since 2008

The core activity of Elektro-Bürgin AG is the planning, installation and maintenance of electrical systems and installations, including photovoltaic systems, for households and large-scale projects. The company also provides electrical installation services, such as the installation of power lines, lighting systems and other electrical components.

Solar & Photovoltaics
View profile4.7(12)
Elektro Gertsch AG Logo

Elektro Gertsch AG 

Uetendorf · Since 2015

The core activity of Elektro Gertsch AG is the planning, execution and acceptance of electrical installations, including the renovation of old installations, as well as the installation and maintenance of photovoltaic systems and battery storage systems. Additionally, the company offers solutions for measuring and visualizing energy consumption and production, particularly for self-consumption communities.

Solar & Photovoltaics
View profile5(12)
Elektro Huwiler GmbH Logo

Elektro Huwiler GmbH 

Birmensdorf Zh · Since 1996

The core activity of Elektro Huwiler is the planning, installation and commissioning of electrical systems and installations, including: general electrical installations, telephone systems, high-voltage installations, photovoltaic systems, e-mobility installations, repair and replacement of lighting fixtures, and renovation and expansion work in the field of electrical engineering. The company also offers emergency and on-call services and has specialized in small-scale projects.

Electrical Planning & InstallationSolar & Photovoltaics
View profile5(12)
Elektro Roder AG Logo

Elektro Roder AG 

Rapperswil Be · Since 2015

The core activity of Elektro Roder AG is the provision of services and sale of products in the field of electrical installations, including: planning, design and installation of high and low voltage systems in residential, commercial and agricultural construction; installation and repair of household appliances and lighting fixtures; consulting and sales of photovoltaic systems and electromobility solutions; smart home solutions and installations; sale of household appliances and electrical articles in our own sales shop; and 24-hour emergency service for electrical installations and repairs.

Solar & Photovoltaics
View profile4.8(12)
Elektro Schumacher GmbH Reinach Logo

Elektro Schumacher GmbH Reinach 

Reinach Bl · Since 2012

The core activity of Schumacher Elektro GmbH is the provision of electrical engineering services, including the installation, conversion and maintenance of electrical systems, as well as the planning and installation of photovoltaic systems and wallboxes for electromobility.

Solar & Photovoltaics
View profile4.7(12)
Elektro Siegrist AG Logo

Elektro Siegrist AG 

Kaisten · Since 1975

The company's core activity is the provision of electrical engineering services, including installations, switchgear, service and maintenance, telematics, automation and security. This also includes specific services such as lighting and LED installations, high and low voltage installations, ICT projects, KNX building automation, network IT and photovoltaics.

Solar & Photovoltaics
View profile4.5(12)
elektro zollinger ag Logo

elektro zollinger ag 

Mellingen · Since 1984

The core activity of the company "elektro zollinger ag" is the provision of services in the field of electrical installations, including new, conversion and extension work, service, E-Mobility, photovoltaics, building automation and medical rooms for residential and commercial construction.

Solar & Photovoltaics
View profile4.7(12)
Engiadina Recycling AG Logo

Engiadina Recycling AG 

Zernez · Since 2015

The core activity of Engiadina Recycling AG is the recycling and disposal of waste, including the acceptance, processing and reuse of materials. The company also offers various services such as skip rental, excavation work, demolition, snow removal, maintenance work and transportation.

Waste Management IndustryTransport Companies
View profile4.7(12)
Frei AG, Haustechnik Logo

Frei AG, Haustechnik 

Kirchberg Be · Since 1974

Frei AG, Haustechnik is a trade company offering sanitary installations, sheet‑metal (spengleri) work and lightning protection as well as heating and solar technology services. Its activities include planning, installation and repair of heating systems (oil, gas, heat pumps, pellets, wood), underfloor heating and radiators, boiler descaling, and sales/installation of household appliances.

Sheet Metal WorkSolar & Photovoltaics
View profile3.7(12)
Gähler & Rindlisbacher Gebäudehülle AG Logo

Gähler & Rindlisbacher Gebäudehülle AG 

Ermatingen · Since 2024

The core activity of Gähler & Rindlisbacher Gebäudehülle AG is the execution of work in the field of building envelopes, particularly in the areas of: facade construction, roof construction (flat and pitched roofs), photovoltaics, floor sealing, and maintenance and repair of building envelopes. The company thus offers a comprehensive range of services in the field of building envelopes, from planning and execution to maintenance and repair.

Solar & Photovoltaics
View profile5(12)
Gasser Elektro AG Alpnach Logo

Gasser Elektro AG Alpnach 

Alpnach Dorf · Since 1974

Gasser Elektro AG Alpnach provides electrical installations and maintenance, and plans and installs photovoltaic systems, e‑mobility charging solutions, lighting, household appliances and central vacuum systems.

Electrical Planning & InstallationSolar & Photovoltaics
View profile4.8(12)
Gasverbund Mittelland AG Logo

Gasverbund Mittelland AG 

Arlesheim · Since 1974

The core activity of Gasverbund Mittelland AG is the procurement, transportation and distribution of gas, biogas and other renewable gases through its own high-pressure network in the Mittelland region and Northwestern Switzerland.

Energy Suppliers
View profile4.3(12)
Gebr. Weber AG Logo

Gebr. Weber AG 

Ostermundigen · Since 1991

The core activity of Gebr. Weber AG is the provision of services in the field of roofing and building envelope, including: * Renovation and new construction of pitched and flat roofs * Installation of photovoltaic systems * Renovation and new construction of ventilated facades * Replacement and new installation of Velux roof windows * Maintenance and repairs on pitched and flat roofs as well as on facades The company thus offers comprehensive solutions for the roofing and facade needs of buildings.

Solar & Photovoltaics
View profile4.7(12)
Gerster Recycling AG Logo

Gerster Recycling AG 

Frasnacht · Since 2022

The core activity of Gerster Recycling AG is the disposal and recycling of valuable materials, particularly through: personal disposal consulting, competent dismantling and clearing, professional transportation, expert material preparation, and skip rental services. The company focuses on the circular economy and offers specialized services for the disposal of various materials, including electric motors, meters, cables, end-of-life vehicles and trucks.

Waste Management Industry
View profile4.8(12)
Glaus & Kappeler AG Logo

Glaus & Kappeler AG 

Brügg Be · Since 1996

The core activity of Glaus & Kappeler AG is the provision of services in the electrical industry, particularly in the areas of electrical installations, building automation, photovoltaics, e-mobility, customer service, and rental of electrical equipment and systems. The company offers a comprehensive range of electrical engineering services for private households, industry, and commerce, thereby covering the entire value chain in the electrical industry.

Energy SuppliersSolar & Photovoltaics
View profile4.4(12)
Habersaat AG Logo

Habersaat AG 

Frauenfeld · Since 1966

The core activity of Habersaat AG includes the planning, consulting, installation and maintenance of electrical systems and installations, including: electrical installations, lighting technology, e-mobility, photovoltaics and solar systems, building cabling, fiber optic and glass fiber technology, satellite systems, video and intercom systems, and device testing. In addition, the company also offers services in the fields of telecommunications, hardware and software, network and infrastructure, cloud and server hosting, as well as WLAN solutions. Furthermore, Habersaat AG also provides security technology, smart home solutions, building automation and audio systems. The company also offers a 24-hour service and comprehensive consulting and planning for its customers.

Solar & Photovoltaics
View profile4.5(12)
Hans Läuchli AG Logo

Hans Läuchli AG 

Mellingen · Since 1975

The core activity of H. Läuchli AG is the development, manufacture and distribution of heating and cooling technology solutions, particularly heat pumps, gas and oil heating systems, as well as solar thermal systems. In addition, the company offers service and maintenance services for these products.

Solar & Photovoltaics
View profile3.8(12)
Hurni Heizungen GmbH Logo

Hurni Heizungen GmbH 

Goldach · Since 2012

The core activity of Hurni Heizungen GmbH is the planning, installation, maintenance and energy consulting of heating systems, particularly in residential buildings, new and renovation projects, as well as providing services in the field of ventilation technology.

Solar & Photovoltaics
View profile5(12)
Karl Stüssi Sanitär AG Logo

Karl Stüssi Sanitär AG 

Glarus · Since 2011

The core activity of Karl Stüssi Sanitär AG is the planning, design, installation, maintenance and repair of sanitary facilities, ventilation systems and solar systems.

Solar & Photovoltaics
View profile4.3(12)
Kieswerk Egli AG Logo

Kieswerk Egli AG 

Riedikon · Since 1989

The core activity of Kieswerk Egli AG is the production and distribution of concrete mixtures, gravel and other building materials, as well as the provision of transport services for the construction and road construction industries.

Waste Management IndustryGlass, Ceramics, Stone & Construction Materials Industry
View profile4.5(12)
LESOL GmbH Logo

LESOL GmbH 

St. Pelagiberg · Since 2023

The core activity of LESOL is the planning, installation and maintenance of sustainable energy solutions, particularly in the field of solar energy, battery storage and e-mobility. This includes creating individual project plans, installing photovoltaic systems and battery storage systems, as well as consulting and installing charging stations for electric vehicles.

Solar & Photovoltaics
View profile5(12)
MBRsolar AG Logo

MBRsolar AG 

Wängi · Since 2001

MBRsolar AG is an energy specialist for photovoltaic systems, providing project planning, system monitoring, storage solutions, energy consulting and electricity marketing for agriculture, commercial clients and single-family homes.

Solar & Photovoltaics
View profile4.1(12)
MR Agri-PV AG Logo

MR Agri-PV AG 

Wängi · Since 2023

Solar & Photovoltaics
View profile4.1(12)
Muhmenthaler AG Muldenservice Region Bern Logo

Muhmenthaler AG Muldenservice Region Bern 

Bern · Since 2006

Muhmenthaler AG Muldenservice Region Bern provides skip and container services, material deliveries, crane work and box services. The company supplies and collects skips, containers and compactor containers, offers comprehensive waste-management and disposal concepts, and directs recyclable and non-recyclable materials into appropriate recycling or disposal streams.

Waste Management Industry
View profile5(12)
Oberholzer Sanitär AG Logo

Oberholzer Sanitär AG 

Neuhaus Sg · Since 1999

The company is a building technician specializing in the planning, installation and maintenance of heating, ventilation and sanitary systems. Core activities include the preparation of hot water and heating support, controlled residential ventilation, bathroom renovation and the renovation of heating systems.

Solar & Photovoltaics
View profile4.7(12)
Oekoswiss Energy AG Logo

Oekoswiss Energy AG 

Hildisrieden · Since 1995

The core activity of Oekoswiss Energy AG is the development, production and marketing of infrared heating systems and control technology for residential and industrial applications, with a focus on energy efficiency, sustainability and innovative solutions.

Solar & Photovoltaics
View profile4.7(12)
Qualikomp AG Logo

Qualikomp AG 

Emmen · Since 2011

The core activity of Qualikomp AG is the production of high-quality compost and substrates. The company processes green waste and other organic materials to produce high-grade composts and substrates suitable for various applications.

Waste Management Industry
View profile4.8(12)
Rhiienergie AG (rhiienergie) Logo

Rhiienergie AG (rhiienergie) 

Tamins · Since 1906

The core activity of Rhiienergie AG is energy supply, particularly the production and distribution of electricity from renewable energy sources, such as photovoltaics, as well as providing solutions for energy efficiency and energy saving. This also includes the installation and operation of solar systems, charging stations for electric vehicles, and advising customers on energy efficiency and sustainable energy consumption.

Energy SuppliersSolar & Photovoltaics
View profile4.1(12)
SANA Canalizzazioni SA Logo

SANA Canalizzazioni SA 

Davesco-Soragno · Since 2010

The core activity of SANA Canalizzazioni is the maintenance, repair and renovation of sewer and pipeline systems, including the elimination of blockages, leaks and other problems. Specific services include: rehabilitation of damaged structures, cleaning of sewer and pipeline systems, unblocking of toilets, kitchens, sinks and other drains, video inspections of sewer and pipeline systems, repair and replacement of pipes, and preventive maintenance and inspections of sewer and pipeline systems. The company offers these services 24 hours a day, 7 days a week and has specialized in solving problems in the field of sewer and pipeline systems.

Waste Management Industry
View profile4.6(12)
Sanitär Troxler AG Logo

Sanitär Troxler AG 

Inwil · Since 2011

The core activity of Sanitär Troxler AG is the planning, installation, maintenance and repair of sanitary systems, heating systems, comfort ventilation systems and thermal solar systems, particularly in the area of renovations and repairs in bathrooms, kitchens and agricultural businesses.

Solar & Photovoltaics
View profile4.8(12)
Scherrer Gebäudehüllen AG Logo

Scherrer Gebäudehüllen AG 

Henggart · Since 2010

The core activity of Scherrer company primarily encompasses services and works in the field of construction, particularly: * Timber construction * Pitched roofs * Facades * Flat roofs * Solar technology * Crane services In addition, the company also offers complementary services such as: * Building envelope maintenance * Marder control * Wasp control * Energy consulting * Planning and estimating * Building thermography * Blower-door tests The company appears to specialize in the planning, execution, and maintenance of building envelopes and technology.

Solar & Photovoltaics
View profile4.3(12)
Senero AG Logo

Senero AG 

Winterthur · Since 2005

Senero AG designs, installs and maintains photovoltaic systems and supplies battery storage, energy-management solutions, e-mobility services and off-grid systems. The company also provides engineering for large projects, system monitoring and training activities in photovoltaics.

Solar & Photovoltaics
View profile4.9(12)
SK Kanalservice GmbH Logo

SK Kanalservice GmbH 

Rudolfstetten · Since 2021

The core activity of SK Kanalservice GmbH is the provision of services in the field of sewer cleaning, renovation and maintenance, including emergency services, tightness testing, sewer TV inspection and suction work.

Waste Management Industry
View profile4.5(12)
SolarHub AG Logo

SolarHub AG 

Wolhusen · Since 2021

The core activity of SolarHub AG is the consulting, planning, implementation and sale of solar systems and related products such as solar panels, battery storage systems and inverters for private and commercial customers in Switzerland. The company also offers plug-and-play solar systems for self-assembly and complete solar systems for various roof types and construction methods.

Solar & Photovoltaics
View profile4(12)
SPÜL-TECH Saggese Logo

SPÜL-TECH Saggese 

Diessenhofen · Since 2016

The company SPÜL-TECH provides sewer cleaning services.

Waste Management Industry
View profile5(12)
Stalder R. GmbH Logo

Stalder R. GmbH 

Entlebuch · Since 1994

The core activity of Stalder R. GmbH encompasses the planning, installation and maintenance of building technology systems, particularly: heating systems (including wood storage systems and heat pumps), sanitary facilities, chimney construction, water supply, solar systems, central vacuum cleaners and comfort ventilation. The company thus offers comprehensive services in the field of building technology and building services engineering.

Solar & Photovoltaics
View profile5(12)
swisscondens.ch GmbH Logo

swisscondens.ch GmbH 

Zollikofen · Since 2015

The core activity of Swisscondens GmbH encompasses consulting, installation and implementation of projects in the field of building technology, particularly in the areas of heating technology, sanitary installation, solar and energy storage technology. The company also offers administrative and project management services and coordinates projects from a single source.

Solar & Photovoltaics
View profile5(12)
swissRTec AG Logo

swissRTec AG 

Altnau · Since 2006

The core activity of swissRTec AG is the development and provision of technologies and services for the recycling of electrical waste, cables, batteries, metal scrap and other materials. The company offers solutions for the processing and utilization of waste and focuses on maximizing the value of waste. This includes the development of plants such as delamination mills, vertical shredders and screening and separation processes, as well as services such as spare parts, service agreements, upgrades and retrofits, test facilities, financing and consulting/engineering.

Waste Management IndustryMechanical Engineering Industry
View profile4.6(12)
THE BATH SHOP AG Logo

THE BATH SHOP AG 

Zurich · Since 1996

THE BATH SHOP is a manufacturer and supplier of high-quality bathroom and sanitary products, including sinks, faucets, toilets, bathtubs, accessories and lighting. The company's core activity lies in the development, production and distribution of these products, which are characterized by their exclusive design, high quality and sustainability.

Waste Management Industry
View profile5(12)
Thommen SA Köniz & Givisiez Logo

Thommen SA Köniz & Givisiez 

Givisiez · Since 2005

Thommen SA Köniz & Givisiez provides recycling and waste management services, handling ferrous and non-ferrous metals, electronic waste, batteries, plastics, construction debris, paper/cardboard, vehicle recycling, overall disposal and logistics/packaging. The site originated from Karl Kaufmann AG and is integrated into the Thommen Group.

Waste Management Industry
View profile4(12)
Tirasol GmbH Logo

Tirasol GmbH 

Kyburg-Buchegg · Since 2022

The core activity of Tirasol GmbH is the planning, installation and maintenance of solar systems, as well as the provision of services in the field of energy management and electromobility. This includes in particular: The planning and installation of solar systems for private and commercial customers; The provision of services for the commissioning, maintenance and repair of solar systems; Support for the realization of solar projects, including obtaining quotes from installers and accompanying the construction process; The provision of charging solutions for electric vehicles and the integration of solar systems with electromobility solutions; Support for troubleshooting and maintenance of solar systems and energy management systems.

Solar & Photovoltaics
View profile5(12)
Quartierelektriker GmbH Logo

Quartierelektriker GmbH 

Basel · Since 2011

The core activity of Top Quartierelektriker is the provision of services in the field of electrical engineering, including: electrical installations, e-mobility, IT and telecommunications, security, solar energy, maintenance and service, as well as planning and consulting. The company offers these services to private and commercial customers in the Basel region and Northwestern Switzerland.

Solar & Photovoltaics
View profile4.3(12)
Werder AG Logo

Werder AG 

Waltenschwil · Since 1967

Werder AG is a building services company providing sanitary installations, heating systems and sheet-metal roofing (Bauspenglerei) services. Its offerings also include lightning protection, chimney systems, heating renovations, ventilation and bathroom/wellness solutions, and the website notes partnerships with manufacturers such as Artweger.

Sheet Metal WorkSolar & Photovoltaics
View profile4.3(12)
Buchli's Kyondo Logo

Buchli's Kyondo 

Sent · Since 2025

The core activity of Kyondo is the manufacture and distribution of handmade sisal products, particularly baskets, crafted by Kenyan artisans. The company supports the artisans through fair trade conditions and direct payment, ensuring them a sustainable income. Kyondo combines traditional Kenyan craftsmanship with global sustainability and social standards, selling the products through an online shop and a store in Switzerland.

Sustainability Sector
View profile5(12)
Agena SA Logo

Agena SA 

Forel (Lavaux) · Since 1988

The core activity of Agena consists in planning, implementing and maintaining plants for renewable energies, in particular: solar photovoltaic, solar thermal, heat pumps and battery storage. The company offers these solutions for various types of buildings, including residential, commercial, industrial and public buildings.

Solar & Photovoltaics
View profile4.3(11)
AKS Kanalsanierung AG Logo

AKS Kanalsanierung AG 

Zurich · Since 2023

The core activity of AKS-Kanalsanierung is sewer rehabilitation and cleaning, including related services such as sewer inspection, excavation work, 24-hour emergency service, spray technology and manual shaft rehabilitation.

Waste Management Industry
View profile4.2(11)
Avdili Elektro GmbH Logo

Avdili Elektro GmbH 

Glarus · Since 2021

The core activity of Avdili Elektro GmbH is the installation and distribution of solar systems as well as the provision of related services.

Solar & Photovoltaics
View profile5(11)
BASLER RÄUMUNG & ENTSORGUNG, Temürtürkan Logo

BASLER RÄUMUNG & ENTSORGUNG, Temürtürkan 

Basel · Since 2016

The core activity of Basler Räumung & Entsorgung is the professional execution of house and apartment clearances, including related services such as cleaning and clearance work, proper disposal, furniture and small transports, as well as handling antiques.

Waste Management Industry
View profile5(11)
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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.