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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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IndustryEnergy & Environment
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8'993 companies found

B. Stillhart Dach + Fassaden + Solar AG Logo

B. Stillhart Dach + Fassaden + Solar AG 

Bronschhofen · Since 2007

The core activity of B. Stillhart Dach + Fassaden + Solar AG encompasses the planning, execution and maintenance of roofing and facade work, including the installation of solar modules and photovoltaic systems. The services range from the construction of pitched and flat roofs to the assembly of facade elements and thermal insulation to power generation. The company also offers comprehensive consulting and services in the field of building envelopes, including repairs, renovations and new construction.

RoofingSolar & Photovoltaics
View profile4.5(6)
Burch Kanalservice GmbH Logo

Burch Kanalservice GmbH 

Ballwil · Since 2018

The core activity of Burch Kanalservice GmbH is sewer maintenance, particularly the cleaning, maintenance and repair of drainage systems, including the inspection, repair and renovation of sewerage systems.

Waste Management Industry
View profile5(6)
Compostière du Val-de-Ruz SA Logo

Compostière du Val-de-Ruz SA 

Boudevilliers · Since 1995

Compostière du Val-de-Ruz SA operates an open-air composting facility that processes organic waste into compost and soil amendments. Services include accepting kitchen and garden waste, producing and selling compost, and applying fees for professional deliveries.

Waste Management Industry
View profile3.7(6)
CTS Sàrl Compostière de Terre Sainte Logo

CTS Sàrl Compostière de Terre Sainte 

Commugny · Since 2014

The company CTS.BIO operates a composting plant where organic waste is composted. The core activity of the company is to offer the disposal of organic waste through composting.

Waste Management Industry
View profile3.7(6)
dampfrein Urscheler Logo

dampfrein Urscheler 

Gossau Sg · Since 2021

The core activity of Dampfrein Urscheler is the development, distribution and consulting of chemical-free cleaning solutions for private households and companies, particularly through the use of steam cleaning systems and products based on water and free from chemical additives.

Sustainability Sector
View profile4.8(6)
DD Solar GmbH Logo

DD Solar GmbH 

Olten · Since 2023

The core activity of DD Solar GmbH is the planning, implementation and maintenance of solar systems for private households, companies and public institutions, with a focus on innovative and sustainable solar technologies and photovoltaic systems.

Solar & Photovoltaics
View profile5(6)
Desfayes Electricité Sàrl Logo

Desfayes Electricité Sàrl 

Cully · Since 2014

Desfayes Électricité SARL is an electrical company offering a wide range of services in the field of electrical installations. The company's core activities include: installation of high and low voltage systems, new installations, renovations and extensions of electrical systems, temporary installations for events, construction sites and other occasions, installation of telephone, computer networks, television systems, intercom systems and alarm systems, sale and installation of electrical appliances, lighting systems and other electrical systems. The company also provides solutions for electric vehicle charging stations, photovoltaic systems and energy management systems.

Solar & Photovoltaics
View profile5(6)
De-Stefani AG Logo

De-Stefani AG 

Chur · Since 1973

The core activity of De-Stefani AG is the planning, installation, maintenance and repair of building technology systems, particularly in the areas of heating, plumbing and ventilation, for single-family and multi-family homes as well as other buildings.

Solar & Photovoltaics
View profile4.3(6)
ecoEn GmbH Logo

ecoEn GmbH 

Zurich · Since 2017

The core activity of ecoEn is consulting, planning, installation and maintenance of renewable energy solutions, particularly photovoltaic systems, energy storage batteries, smart home systems, e-mobility and heat pumps, with the goal of supporting customers in switching to an emission-free, sustainable and autonomous energy supply.

Solar & Photovoltaics
View profile5(6)
Edelfalter AG Logo

Edelfalter AG 

Mühlethal · Since 2004

The core activity of Edelfalter AG is the planning, installation and distribution of solar systems, in particular rooftop systems, flat roof systems, in-roof systems and facade systems.

Electrical Planning & InstallationSolar & Photovoltaics
View profile4.8(6)
Eiholzer AG Logo

Eiholzer AG 

Baldegg · Since 1983

The company's core activity is the planning, installation, maintenance and repair of heating, ventilation, air conditioning and sanitary systems, as well as the execution of renovation and modernization work in these areas.

Solar & PhotovoltaicsFacility Management & Cleaning
View profile5(6)
Electrio AG Logo

Electrio AG 

Reichenbach Im Kandertal · Since 1986

The core activity of ELECTRIO AG includes the planning, installation and maintenance of electrical systems for residential and commercial properties, as well as services in the areas of solar technology, agriculture, sound technology and household appliances.

Electrical Planning & InstallationSolar & Photovoltaics
View profile4.3(6)
ELECTRO SPARK SA Logo

ELECTRO SPARK SA 

Neuchâtel · Since 2021

ELECTRO SPARK SA provides electrical system design, installation and maintenance services for residential and commercial clients. Its offerings include telephony and fibre connections, IT network cabling and Wi‑Fi setup, home‑automation solutions, photovoltaic solar installations, and electrical repairs, safety upgrades and switchboard replacement.

Electrical Planning & InstallationSolar & Photovoltaics
View profile5(6)
Elektrizitätswerk Heiden AG Logo

Elektrizitätswerk Heiden AG 

Heiden

Elektrizitätswerk Heiden AG is an electricity utility and electrical services company. It supplies electricity, operates and maintains distribution networks, and provides installations and services for photovoltaics, telematics, fiber-optic connectivity, testing and maintenance, as well as an online shop.

Energy Suppliers
View profile4.8(6)
Elektro Bolt GmbH Logo

Elektro Bolt GmbH 

Ennetaach · Since 1999

The core activity of Elektro Bolt GmbH is the planning, coordination and execution of high and low voltage installations, including lighting concepts, light, telephone and multimedia connections, as well as electrical planning for new buildings, renovations and refurbishments in the areas of private customers, industry and public companies and institutions.

Electrical Planning & InstallationSolar & Photovoltaics
View profile5(6)
Elektro E. Peter AG Logo

Elektro E. Peter AG 

Wädenswil · Since 1986

Elektro E. Peter AG provides planning, installation, maintenance and repairs for electrical systems. Services include electrical installations, audio/video, telephone and cable-TV systems, telematics, automation/security and photovoltaic systems (installed with partner firms) for private, commercial and industrial customers.

Solar & Photovoltaics
View profile5(6)
Elektro Feuz AG Logo

Elektro Feuz AG 

Grindelwald · Since 1976

The core activity of Elektro Feuz AG is the planning, consulting and implementation of electrical installations, building automation, multimedia solutions and ICT services for companies and private individuals. This includes, in particular, the installation and maintenance of electrical systems, the implementation of smart home systems, the planning and implementation of video conferencing systems and digital signage solutions, as well as consulting and planning for efficient buildings.

Technical Consulting & EngineeringElectrical Planning & InstallationSolar & Photovoltaics
View profile4.3(6)
Elektro Fisch AG Logo

Elektro Fisch AG 

Gross · Since 2010

The core activity of Elektro Fisch AG is the planning, design, installation, maintenance and repair of electrical systems, devices and systems for private and industrial applications, including: electrical installations for building technology and home automation; renewable energy systems (solar systems, photovoltaic systems, combined heat and power systems); high and low voltage systems; telecommunications systems; heating systems (fossil fuel heating systems, electric heating systems, heat pumps); and household appliances (delivery, installation, maintenance). The company also provides consulting and service activities for these areas.

Solar & Photovoltaics
View profile5(6)
Elektro H. Christen GmbH Logo

Elektro H. Christen GmbH 

Kaltacker · Since 2007

The core activity of Elektro H. Christen GmbH is the provision of electrical installations and services, including: high-voltage and low-voltage installations, switchgear construction, multimedia and telephone systems, satellite systems, internet and network installations, photovoltaic systems, lighting, IT cabling, and the installation and sale of household appliances. The company primarily offers these services in the Emmental region and focuses on executing orders in new buildings and renovations.

Solar & Photovoltaics
View profile5(6)
Elektro Knöpfel AG Logo

Elektro Knöpfel AG 

Herisau · Since 1989

The core activity of Elektro Knöpfel AG includes the planning and installation of electrical systems, including lighting, photovoltaics, network and internet solutions, telephony and TV systems.

Solar & Photovoltaics
View profile5(6)
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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.