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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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9'016 companies found

energiehaus ag Logo

energiehaus ag 

Ziegelbrücke · Since 2015

The core activity of RBT Engineering (formerly energiehaus) is the planning, development and implementation of innovative solutions in the field of building technology, with a focus on sustainable and efficient solutions.

Plumbing & Building ServicesSpecialized Construction InstallationsSolar & Photovoltaics
View profile5(3)
EnerJ Bois Sàrl Logo

EnerJ Bois Sàrl 

Buttes · Since 2021

The core activity of EnerJ Bois Sàrl is the harvesting and marketing of wood chips (plaquettes forestières) as well as wood shredding and chipping in the canton of Neuchâtel. The company specializes in the use of wood as a renewable energy source.

Sustainability Sector
View profile3.7(3)
Entreprise du Gaz S.A. Porrentruy Logo

Entreprise du Gaz S.A. Porrentruy 

Porrentruy · Since 1904

Entreprise du Gaz S.A. Porrentruy is a company providing heating, sanitary and water services, offering design, installation, maintenance and technical after-sales support for heating and plumbing systems and the operation of municipal water distribution.

Water Supply
View profile2.7(3)
Franz Salzmann AG Logo

Franz Salzmann AG 

Lyss · Since 1987

The core activity of Franz Salzmann AG is the thermal de-coating of industrial materials, where organic substances are separated from their carrier by heat or cold. This includes the disposal and recycling of materials such as powder-coated and wet-painted or rubberized parts, as well as the treatment of various products such as centrifuges, ampoules and other industrial waste.

Waste Management IndustryMetal Industry
View profile5(3)
Heyos Energy, Araba Logo

Heyos Energy, Araba 

Meyrin · Since 2022

The core activity of Heyos Energy is the planning, installation and marketing of photovoltaic systems, including the associated components such as solar modules, batteries and charging stations. The company offers various packages tailored to the specific needs of its customers and supports them in the administrative tasks associated with the installation of such systems.

Solar & Photovoltaics
View profile5(3)
Licht- und Wasserwerk AG Kandersteg Logo

Licht- und Wasserwerk AG Kandersteg 

Kandersteg · Since 1903

The core activity of Licht- und Wasserwerk Kandersteg AG is the production and supply of electrical energy, drinking water, utility water, and fire-fighting water, as well as natural heat for the mountain village of Kandersteg in the Bernese Oberland.

Energy Suppliers
View profile4.7(3)
Müller Holzbau Wengen GmbH Logo

Müller Holzbau Wengen GmbH 

Wengen · Since 2021

The core activity of Müller Holzbau Wengen GmbH is timber construction, particularly the planning and execution of timber construction work, including traditional timber construction, element construction, interior finishing, roofing and photovoltaics. The company also offers services such as structural analysis for timber and steel structures.

Interior ConstructionTimber Construction & CarpentryRoofing
View profile5(3)
Phoenix Contact AG Logo

Phoenix Contact AG 

Tagelswangen · Since 1981

The core activity of Phoenix Contact Schweiz is the development, manufacture, and distribution of products and solutions for industrial automation, electrical engineering, and energy transmission. This includes, in particular: * Cabinet and enclosure technology * Industrial communication and network solutions * Energy monitoring and management * Safety switching devices and sensors * Power supplies and protection * Charging technology for electromobility * Automation software and hardware * Edge computing and industrial PCs * Marking solutions and tool automation The company also offers services such as consulting, planning, engineering, and support for its customers.

Solar & Photovoltaics
View profile5(3)
Post-Mix AG Logo

Post-Mix AG 

Wallisellen · Since 1977

The core activity of postmix AG is the development, planning and implementation of solutions for economic and environmentally friendly draught beer dispensing, particularly in the areas of dispensing and control systems, beverage and food ingredients, as well as plants for beverage production.

Sustainability Sector
View profile3.7(3)
RM Elettroimpianti Sagl Logo

RM Elettroimpianti Sagl 

Piotta · Since 2013

The core activity of RM Elettroimpianti Sagl encompasses the planning, installation and maintenance of electrical systems, telephone systems and their repair. Furthermore, the company offers services in the field of renewable energy, such as the installation of solar panels and other alternative energy sources. Additionally, the company specializes in the installation and maintenance of charging infrastructure for electric vehicles. Other activities include the planning and installation of network infrastructure as well as consulting and support for the implementation of energy efficiency solutions.

Electrical Planning & InstallationSolar & Photovoltaics
View profile4.3(3)
Semiz Wertstoffrecycling Service Logo

Semiz Wertstoffrecycling Service 

Riehen · Since 2018

Waste Management Industry
View profile5(3)
SolarPro GmbH Logo

SolarPro GmbH 

Trimbach · Since 2023

The core activity of SolarPro GmbH is the planning, installation and maintenance of solar systems for private households and companies, with the goal of promoting a sustainable and climate-friendly energy future.

Solar & Photovoltaics
View profile5(3)
solartechnology.ch Sàrl Logo

solartechnology.ch Sàrl 

Vex · Since 2011

Solar & Photovoltaics
View profile3.7(3)
Wasser- und Elektrizitätswerk Steinhausen AG Logo

Wasser- und Elektrizitätswerk Steinhausen AG 

Steinhausen · Since 2023

The core activity of the company "Wasser- und Elektrizitätswerk Steinhausen AG" is the supply of the municipality of Steinhausen with electricity and water. The company is responsible for the electricity and water supply, including the maintenance and upkeep of the corresponding infrastructure.

Energy Suppliers
View profile5(3)
Albu Green Alija Logo

Albu Green Alija 

Siebnen · Since 2024

The core activity of Albu Green Service is the execution of disposal and clearance services of all kinds, including: clearance, cellar clearance, messy apartments, storm damage, apartment dissolution, screed clearance, and recycling services. The company offers individual and affordable solutions for the disposal and clearance of apartments, cellars, and other rooms.

Waste Management Industry
View profile5(2)
Anken Energietechnik GmbH Logo

Anken Energietechnik GmbH 

Bowil · Since 2016

The core activity of Anken Energietechnik GmbH is the planning, implementation and maintenance of solar thermal, heating and sanitary systems, as well as providing services in the field of office and project planning for these systems.

Plumbing & Building ServicesSolar & Photovoltaics
View profile5(2)
APD Auen Pflege Dienst AG Logo

APD Auen Pflege Dienst AG 

Flaach · Since 2007

The core activity of APD Auen Pflege Dienst AG includes the production and sale of plant charcoal as well as various services in the field of landscape maintenance, including direct greening, composting, nature conservation and forest and field road maintenance.

Horticulture & LandscapingWaste Management Industry
View profile5(2)
Associazione Fioriselvatici (AFS) Logo

Associazione Fioriselvatici (AFS) 

Verscio · Since 2023

Fioriselvatici Sagl is a company specializing in the cultivation and sale of indigenous plants and seeds from the southern Alps, particularly wildflowers. The core activity includes the production and distribution of: indigenous plants and seeds for the restoration of natural habitats and the creation of biodiversity oases; special plant mixtures for urban and peri-urban areas; and services such as consulting and planning for the design of gardens and green spaces with indigenous plants. The company aims to promote local biodiversity and support the use of native plants in landscape design.

Sustainability Sector
View profile5(2)
Biomassa Blenio SA Logo

Biomassa Blenio SA 

Olivone · Since 2011

The core activity of the company is the management and administration of the municipality of Blenio, including the provision of services to citizens, support for local businesses and organizations, the promotion of tourism and the management of municipal property.

Energy SuppliersSolar & PhotovoltaicsSustainability Sector
View profile4.5(2)
Carabus Naturschutzbüro Thomas Röösli Logo

Carabus Naturschutzbüro Thomas Röösli 

Lucerne · Since 2001

The core activity of the company "carabus Naturschutzbüro" is the provision of services in the field of nature conservation, particularly in the areas of: * Nature conservation consulting and planning * Biodiversity promotion * Protection and promotion of amphibians, reptiles, insects and other animal groups * Ecological networking of habitats * Nature conservation management of protected areas * Conducting surveys, mapping and inventory assessments * Public relations and environmental education The company supports authorities, organizations and private individuals in their nature conservation activities and carries out corresponding projects on their behalf.

Sustainability Sector
View profile5(2)
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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.