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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,378 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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8'993 companies found

ELEKTRO 24 AG Logo

ELEKTRO 24 AG 

Zurich · Since 2021

The core activity of ELEKTRO 24 AG is the provision of services in the field of electrical engineering, particularly in the following areas: electrical installations, building automation, e-mobility (electromobility), photovoltaics (solar energy), and security systems. The company thus offers a wide range of electrical engineering services, from the installation and maintenance of electrical systems to the planning and implementation of projects in the field of renewable energy and building automation.

Solar & Photovoltaics
View profile4.4(7)
Elektrizitätswerk Uznach AG Logo

Elektrizitätswerk Uznach AG 

Uznach · Since 1941

The core activity of Elektrizitätswerk Uznach (EWU) is the provision of services and solutions in the field of energy supply, particularly in the areas of: electricity supply, network construction, metering, control and monitoring systems, energy systems, photovoltaics, battery storage, e-mobility, energy management, service and maintenance, electrical installations, and building technology. The company also offers consulting and planning services for optimal energy systems and promotes environmentally friendly and sustainable energy supply.

Energy SuppliersSolar & Photovoltaics
View profile4.4(7)
Elektro Abegg AG Logo

Elektro Abegg AG 

Böttstein · Since 1995

The core activity of Elektro Abegg AG is the planning, consulting, installation and servicing of electrical systems, including high-voltage and low-voltage installations, lighting, IT installations, monitoring and security systems, as well as photovoltaic systems.

Solar & Photovoltaics
View profile4.6(7)
Elektro Ackermann GmbH, Ottenbach Logo

Elektro Ackermann GmbH, Ottenbach 

Ottenbach · Since 2000

The core activity of Elektro Ackermann GmbH is the provision of services and products in the field of electrical engineering, particularly in the following areas: electrical planning and installations, lighting and smart home solutions, electromobility and photovoltaics, energy efficiency and household appliances, and the sale of electrical appliances and accessories in a specialist store. The company thus offers a comprehensive range of services and products in the field of electrical engineering and positions itself as a competent contact for all matters related to electrical engineering.

Solar & Photovoltaics
View profile2.6(7)
Elektro Schwizer AG Logo

Elektro Schwizer AG 

Appenzell · Since 1988

The core activity of Elektro Schwizer includes the planning, installation, maintenance and repair of electrical systems and installations, including: electrical installations, lighting systems, building automation, telephone systems, switchgear, photovoltaic systems, multimedia systems and e-mobility solutions. The company also provides service and emergency services and advises customers on the planning and implementation of electrical projects.

Solar & Photovoltaics
View profile5(7)
Elektro Zimmermann AG Logo

Elektro Zimmermann AG 

Brügglen · Since 2009

The core activity of Elektro Zimmermann AG is the provision of electrical installations and services, including: electrical installations in residential and commercial buildings, service industries, industry and agriculture; building automation; e-mobility; telecommunications and multimedia services; emergency and standby services; and the sale of electrical materials (although the sales outlet is permanently closed, the range is still available on request). The company thus offers a wide range of electrical services and products to meet the needs of its customers in the areas of electrical installation, building automation and communication technology.

Electrical Planning & InstallationSolar & Photovoltaics
View profile5(7)
Energie Concept S.A. Logo

Energie Concept S.A. 

Bulle · Since 1989

The core activity of Energie Concept SA is the provision of services in the field of energy efficiency and sustainable building. Specifically, this includes: energy audits and consulting for buildings and industry, development of concepts for energy-efficient building and renovation, planning and implementation of measures to reduce CO2 emissions, engineering services for the planning and realization of energy-efficient buildings and districts, and consulting and implementation of solutions for renewable energies and energy efficiency. The company also offers specialized services such as thermography, radon measurements, and asbestos removal. The core activity of Energie Concept SA is thus in the field of sustainable energy consulting and planning.

Sustainability Sector
View profile4.9(7)
Energie Zürichsee Linth AG Logo

Energie Zürichsee Linth AG 

Jona · Since 1999

The company's core activity is energy supply, particularly the provision of electricity, heat and energy efficiency solutions. The company focuses on the following business areas: energy supply, network infrastructure, heat, renewable energies and energy efficiency. The company also offers comprehensive heat solutions, including planning, implementation and operation of heating systems. In addition, it supports gas and water suppliers, heat associations and municipalities in all activities related to gas, district heating and water.

Energy Suppliers
View profile4.9(7)
Ernest Tzaut & Fils SA Logo

Ernest Tzaut & Fils SA 

Poliez-Le-Grand · Since 2012

The core activity of Ernest Tzaut & Fils SA encompasses four main areas: 1. **Transport**: The company provides transportation services for materials and products, including the provision of vehicles and the delivery of construction materials. 2. **Demolition**: Ernest Tzaut & Fils SA carries out demolition work, including the dismantling and disposal of buildings and other structures. 3. **Earthworks**: The company offers earthworks services, including site preparation, soil and material removal, and land shaping. 4. **Composting**: Ernest Tzaut & Fils SA operates a composting facility, where organic waste is treated and transformed into valuable products such as compost and soil. Overall, the company focuses on providing services in the construction, environmental, and waste management sectors.

Waste Management Industry
View profile4.7(7)
eug Elektra Untergäu Genossenschaft Logo

eug Elektra Untergäu Genossenschaft 

Kappel So · Since 1907

The core activity of eug Elektra Untergäu Genossenschaft is the supply of energy, particularly the procurement, production, distribution and sale of electricity, as well as the maintenance and operation of the associated network infrastructure. The company also offers various services such as public lighting, the installation and maintenance of photovoltaic systems and consulting on energy products.

Energy Suppliers
View profile3.9(7)
EV Energieversorgung Biberist Logo

EV Energieversorgung Biberist 

Biberist · Since 2005

The core activity of EnergieVersorgung Biberist (EVB) is the supply of electricity to the municipality of Biberist, including the maintenance and expansion of the power grid, as well as the generation and distribution of electricity.

Energy Suppliers
View profile2.7(7)
Färber & Schmid AG Logo

Färber & Schmid AG 

Rafz · Since 1994

The core activity of Färber & Schmid AG is the development, manufacture and distribution of specialty chemicals and plant technology for industrial water and wastewater treatment, as well as the provision of services in the fields of engineering, consulting and laboratory.

Waste Management IndustryChemical Industry
View profile4.9(7)
Ferretti & Co SA Logo

Ferretti & Co SA 

Giubiasco · Since 1971

The core activity of Ferretti & Co SA consists of providing services in the maintenance and cleaning of technical installations and systems, in particular: * Cleaning and maintenance of sewage systems * Inspection and repair of sewage systems * Cleaning and renovation of ventilation systems and kitchen exhausts * Cleaning of surfaces and photovoltaic systems * Professional disinfection and renovation of rooms * Pest control and elimination of unpleasant odors * Emergency services (H24) for urgent interventions The company also offers specialized services such as the use of innovative cleaning methods and equipment, as well as the installation of systems for pest control and odor elimination.

Waste Management Industry
View profile4(7)
Forster Paysages SA Logo

Forster Paysages SA 

Prilly · Since 2017

The core activity of Forster Paysages is the planning and design of landscape spaces and urban environments as landscape architects and urban planners. They offer services in the fields of landscape planning, urban planning and architecture, with a focus on sustainable and environmentally friendly solutions that take into account the natural rhythms and needs of the environment.

Sustainability Sector
View profile5(7)
Frid. Schuler AG Logo

Frid. Schuler AG 

Wohlen Ag · Since 1984

The core activity of Frid. Schuler AG is the provision of services in the field of sanitary and heating installations, including repairs, renovations and new installations of heating and sanitary systems.

Solar & Photovoltaics
View profile5(7)
Future Power AG Logo

Future Power AG 

Seon · Since 2022

The core activity of Future Power AG is the planning, installation and maintenance of photovoltaic systems, battery storage systems, electromobility solutions and power grids. The company offers consulting and services for the implementation of sustainable energy projects.

Solar & Photovoltaics
View profile5(7)
Gautschi Transportservice AG Logo

Gautschi Transportservice AG 

Gontenschwil · Since 1988

Gautschi Transportservice AG provides transport and waste-management services, including skip/mulde rental and collection, tipper transports, sewer and drain cleaning, and sewage sludge transports for wastewater treatment plants (ARA services). The company also carries out pit/sump emptying, disposal of industrial and special waste, container rental and operates suction and jetting vehicles with recycling capabilities.

Waste Management Industry
View profile4.9(7)
Gemeindewerke Erstfeld Logo

Gemeindewerke Erstfeld 

Erstfeld · Since 2002

The company's core activity includes the supply of electricity, water and district heating, as well as the provision of services in the areas of electrical installation, solar energy, building automation and electromobility. The company also offers public lighting and smart-me services.

Energy SuppliersSolar & Photovoltaics
View profile4.4(7)
Germiquet & Habegger Photovoltaïque Sàrl Logo

Germiquet & Habegger Photovoltaïque Sàrl 

Reconvilier · Since 2024

Germiquet & Habegger Photovoltaïque Sàrl provides electrical installations, telematics services and turnkey photovoltaic systems. Services include site assessment and sizing, rooftop installation, grid connection handling and ongoing maintenance.

Solar & Photovoltaics
View profile4.7(7)
Graf Rymann Gebäudetechnik AG Logo

Graf Rymann Gebäudetechnik AG 

Würenlingen · Since 2018

The core activity of Graf Rymann Gebäudetechnik AG encompasses the planning, realization, and maintenance of building technology systems, particularly: sanitary installations, heating systems, ventilation systems, and solar systems. The company offers these services for new buildings, renovations, and conversions of buildings, positioning itself as a comprehensive service provider in the field of building technology.

Solar & Photovoltaics
View profile4.3(7)
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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.