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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

Jan Weisskopf AG Logo

Jan Weisskopf AG 

Gebenstorf · Since 1971

The core activity of Jan Weisskopf AG is sanitary installation and the associated specialist trade. The company offers services in the field of sanitary technology and has specialized in the planning, installation and maintenance of sanitary facilities.

Plumbing & Building ServicesSolar & Photovoltaics
View profile4.9(14)
JOMA Solar GmbH Logo

JOMA Solar GmbH 

Wettingen · Since 2023

The core activity of JOMA Solar is the planning, installation, maintenance and optimization of solar systems for private and business customers, with the aim of promoting a sustainable energy future and minimizing energy costs.

Solar & Photovoltaics
View profile5(14)
Kern & Baur AG, Elektroinstallationen Logo

Kern & Baur AG, Elektroinstallationen 

Rafz · Since 1992

The core activity of Kern + Baur AG is the provision of services in the field of electrical installations, including high-voltage and low-voltage systems, engineering, on-call services and 24-hour emergency services for private households and industrial construction.

Solar & Photovoltaics
View profile4.4(14)
K. & M. Bucher Transporte AG Logo

K. & M. Bucher Transporte AG 

Schötz · Since 2013

The core activity of K. & M. Bucher Transporte AG is the provision of services in the fields of waste disposal, recycling, skip rental and tipping, including asphalt transport.

Waste Management Industry
View profile5(14)
Kurt Senn AG Logo

Kurt Senn AG 

Wichtrach · Since 1980

The company's core activity is the planning, installation, maintenance and renovation of heating and plumbing systems, including the sale and installation of heat pumps, oil heating systems, gas heating systems, wood heating systems, solar systems and Swedish stoves, as well as the renovation and conversion of bathrooms and shower toilets.

Solar & Photovoltaics
View profile3.8(14)
Melis Beeren AG Logo

Melis Beeren AG 

Kesswil · Since 2011

The core activity of Melis is the production of berries, particularly strawberries, raspberries, blueberries, blackberries, currants and gooseberries, in compliance with sustainability standards such as ÖLN and SwissGAP guidelines.

Sustainability Sector
View profile4.2(14)
Millasson Electricité SA - MESA Logo

Millasson Electricité SA - MESA 

St-Martin Fr · Since 1977

Millasson Electricité SA - MESA is a company specialized in the development and installation of electrical systems and products. It provides services including electrical installations, home automation and multimedia, electrical switchboards, inspections and controls, and project studies.

Solar & Photovoltaics
View profile4.7(14)
Neomontana Metall AG Logo

Neomontana Metall AG 

Oberrüti · Since 2022

The core activity of NEOMONTANA Metall AG is the trade in metals and scrap, including the acceptance, processing and resale of ferrous (Fe-products) and non-ferrous (NE-products) metal products.

Waste Management Industry
View profile4.7(14)
Priva Suisse GmbH Logo

Priva Suisse GmbH 

Villnachern · Since 2016

The core activity of PrivaSuisse GmbH is the development, manufacture and distribution of solar modules and photovoltaic systems. The company produces polycrystalline and monocrystalline modules and also offers installation and commissioning services. It focuses on the production of high-quality, environmentally friendly and sustainable products that meet international standards.

Solar & Photovoltaics
View profile5(14)
R. Dähler AG Logo

R. Dähler AG 

Engwilen · Since 2024

The core activity of R. Dähler AG encompasses a wide range of services in the construction sector, particularly: * Roofing work (pitched roofs, flat roofs, roof maintenance and repairs) * Timber construction (timber construction planning, timber construction work) * Metal construction (sheet metal work, lightning protection) * Scaffolding construction * Façade construction * Hall, commercial and agricultural construction * Crane work and transportation * Photovoltaics (PV systems) * Rental and sale of equipment and vehicles Thus, the company offers a comprehensive range of services for the construction and maintenance of buildings and facilities.

RoofingSheet Metal WorkSolar & Photovoltaics
View profile4.6(14)
Recycling Energie AG Logo

Recycling Energie AG 

Nesselnbach · Since 2009

The core activity of the company "Recycling Energie AG" is the production and distribution of renewable energies and products, in particular: * Eco-electricity * Biogas * Biodiesel * District heating * Organic fertilizer * Compost * Fermentation residue * Energy wood chips The company also operates a biogas plant and offers services such as gastronomy, retail, food industry and gastro-suction liners. It is committed to sustainable and environmentally friendly energy production and works with partners to close the natural cycles.

Energy SuppliersWaste Management Industry
View profile4.4(14)
Recycling Pfiffner Logo

Recycling Pfiffner 

Weite · Since 1997

The core activity of the company "Recycling Pfiffner" is the disposal and recycling of waste, particularly bulky waste, metal and other combustible materials. To this end, the company offers container services for waste collection and operates a recycling collection point for the residents of the municipality of Wartau. Additionally, a hazardous waste collection point is also provided.

Waste Management Industry
View profile4.6(14)
Roos Kompost AG Logo

Roos Kompost AG 

Kaltbrunn · Since 2011

The core activity of Roos Kompost AG is the composting of green waste and the production of high-quality compost for horticultural companies and private individuals. The company accepts green waste, shreds and composts it in compliance with environmental regulations, and delivers the finished compost to customers.

Waste Management Industry
View profile4.7(14)
Rüegsegger Elektro AG Logo

Rüegsegger Elektro AG 

Bätterkinden · Since 2021

The core activity of Rüegsegger Elektro AG is the planning, implementation and installation of electrical engineering solutions for buildings, particularly in the areas of: electrical installations, networks and telephony, switchgear construction, security systems, building automation, lighting systems and photovoltaics. The company offers comprehensive building technology solutions for new buildings, renovations and conversions, positioning itself as a flexible and competent contact for customer needs in electrical engineering.

Solar & Photovoltaics
View profile4.1(14)
Schneider Electricité S.A. Logo

Schneider Electricité S.A. 

La Chaux-De-Fonds · Since 1991

The core activity of Schneider Electric cannot be directly determined from the provided website, as the website is not accessible. However, based on the name "Schneider Electric" and the suffix ".ch" (for Switzerland), it can be assumed that the company is active in the field of electrical engineering and energy. Based on general information about Schneider Electric, the core activity can be described as follows: Schneider Electric is a global company that offers solutions for managing energy and industrial processes. The core activities include the development, manufacture, and distribution of products and services in the fields of electrical engineering, energy transmission and distribution, industrial automation, and building automation.

Solar & Photovoltaics
View profile4.4(14)
Schneider GmbH Heizung Sanitär Lüftung Logo

Schneider GmbH Heizung Sanitär Lüftung 

Suhr · Since 2001

The core activity of Schneider GmbH encompasses the planning, installation, maintenance and repair of sanitary, heating and ventilation systems for private individuals, architects and for new constructions, renovations or refurbishments.

Solar & Photovoltaics
View profile5(14)
Solarmaa GmbH Logo

Solarmaa GmbH 

Biel/Bienne · Since 2018

The company's core activity is the planning, coordination and implementation of solar system projects, including energy storage, control of components such as heat pumps or boilers and electric vehicles, as well as the clarification of customer needs and the development of energy future strategies. The company specializes in the interface between building technology and building envelope to ensure optimal quality in the installation of solar systems.

Solar & Photovoltaics
View profile5(14)
Solenergy Sàrl Logo

Solenergy Sàrl 

Mézières Vd · Since 2013

The core activity of Solenergy Sàrl is the installation of solar photovoltaic systems.

Solar & Photovoltaics
View profile4.9(14)
Sovitec Sàrl Logo

Sovitec Sàrl 

Orbe · Since 2008

The core activity of Sovitec is the planning, installation and maintenance of electrical systems of all kinds. The company specializes in the construction and maintenance of electrical installations and offers its services in the Nord-Vaudois and Gros-de-Vaud regions.

Solar & Photovoltaics
View profile4.5(14)
Strassburger Elektro AG Logo

Strassburger Elektro AG 

Ermatingen · Since 1993

The core activity of Strassburger AG encompasses the planning, installation and maintenance of electrical systems, including high and low voltage solutions, building technology, telematics and IT network solutions, multimedia, photovoltaics and household appliance sales. Furthermore, the company also offers services such as consulting, project planning, specialized construction management and on-call duty.

Electrical Planning & InstallationSolar & PhotovoltaicsRetail - Electronic Devices
View profile4.4(14)
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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.