ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The first Swiss company directory, built to boost AI visibility.

Product
  • Pricing
  • Directory
  • Industries
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

Filters
IndustryEnergy & Environment
Search results

Matching companies

9'016 companies found

Wärmeverbund Büetigen GmbH Logo

Wärmeverbund Büetigen GmbH 

Büetigen · Since 2009

The company's core activity is the management and provision of services for the municipality of Büetigen, including social services, construction and planning administration, energy supply, waste management, administration of water and wastewater, rental of premises and other municipal services.

Energy Suppliers
View profile4(1)
Wasserverbund Seeland AG Logo

Wasserverbund Seeland AG 

Biel/Bienne · Since 1967

The core activity of Wasserverbund Seeland AG is the production and wholesale distribution of drinking water to partner companies, which then forward it to the population and businesses in the Bernese Seeland region.

Water Supply
View profile5(1)
Wasserversorgungs-Genossenschaft Affoltern am Albis Logo

Wasserversorgungs-Genossenschaft Affoltern am Albis 

Affoltern Am Albis

The company's core activity is water supply, including the extraction, treatment, storage and distribution of drinking water to the population. This also includes the maintenance and operation of facilities such as pumping stations, reservoirs and spring catchments, as well as monitoring water quality.

Water Supply
View profile5(1)
Wasserversorgungsgenossenschaft Rüegsau und Umgebung Logo

Wasserversorgungsgenossenschaft Rüegsau und Umgebung 

Rüegsauschachen · Since 1901

Water Supply
View profile5(1)
Wasserversorgungs-Genossenschaft Sins und Umgebung Logo

Wasserversorgungs-Genossenschaft Sins und Umgebung 

Sins

Wasserversorgungs-Genossenschaft Sins und Umgebung operates the public drinking and utility water supply and provides fire-fighting water to its customers. Its activities include operation and maintenance of reservoirs, water quality monitoring, meter reading and an emergency on-call service.

Water Supply
View profile5(1)
Wasser & Wärme Steiner AG Logo

Wasser & Wärme Steiner AG 

Ringgenberg Be · Since 2014

The core activity of Wasser & Wärme Steiner AG is the planning, installation and consulting of systems in the sanitary and heating sector, including the treatment of water as a heat carrier and the generation of space heat.

Solar & Photovoltaics
View profile1(1)
Weibel AG Bedachungen Fassadenbau Logo

Weibel AG Bedachungen Fassadenbau 

St. Gallen · Since 1978

The company provides services and products in the field of roof and facade construction, including thermal insulation, energy efficiency, renovation, repair and maintenance of roofs and facades, as well as specialized services such as green roofing, snow retention and snow removal.

RoofingSolar & Photovoltaics
View profile5(1)
Welatec Beratende Ingenieure AG Logo

Welatec Beratende Ingenieure AG 

Interlaken · Since 1994

The core activity of Welatec is independent energy and building technology planning, particularly in the areas of heating, ventilation, air conditioning, refrigeration and sanitation. The company offers customized solutions for its customers and focuses on the planning and optimization of building technology systems.

Solar & Photovoltaics
View profile5(1)
Wenger Bedachungen AG Logo

Wenger Bedachungen AG 

Fahrni B. Thun · Since 1999

The core activity of Wenger Spenglerei Bedachungen AG is the execution of sheet metal work and roofing, including related services such as consulting, planning and implementation of work on roofs, facades, insulation, solar systems and photovoltaics.

Solar & Photovoltaics
View profile5(1)
Bessire FREELON.ch Logo

Bessire FREELON.ch 

Moutier · Since 2025

The core activity of Freelon is the extraction of nests of the Asian hornet (Vespa Velutina) and wasps, as well as providing solutions and services to apiculturists and beekeepers to protect bees and biodiversity.

Sustainability Sector
View profile5(1)
Gematech GmbH Logo

Gematech GmbH 

Rebstein · Since 2025

Gematech GmbH provides services in sanitary installations, heating, ventilation and renovation. The company offers planning, installation, maintenance and renovation of bathrooms, heating systems (including heat pumps and underfloor heating) and ventilation systems for residential and commercial clients.

Waste Management Industry
View profile5(1)
visusta GmbH Logo

visusta GmbH 

Hochdorf · Since 2025

The company's core activity is advising and supporting businesses in the successful implementation of sustainability strategies, particularly in the areas of energy efficiency, greenhouse gas reduction, renewable energies, circular economy, water and wastewater management. The company offers individual consulting, practical knowledge and support in the implementation of sustainability measures to help businesses achieve their sustainability goals.

Sustainability Sector
View profile5(1)
ZAGSOLAR AG Logo

ZAGSOLAR AG 

Kriens · Since 2011

The core activity of ZAGSOLAR is the planning, design, tendering and commissioning of photovoltaic systems.

Solar & Photovoltaics
View profile5(1)
Zaun- und Torsysteme AG Logo

Zaun- und Torsysteme AG 

Kappel So · Since 2018

The core activity of Zaun- und Torsysteme AG is the planning, installation, repair and maintenance of fence and gate systems, including sight and noise protection, solar fences, animal husbandry, handrails and railings, as well as the sale of fence materials. The company also offers personal consulting and specialized installation services, focusing on the needs of private customers in the home and garden sector.

Solar & Photovoltaics
View profile5(1)
ZAV Logistik AG Logo

ZAV Logistik AG 

Uster · Since 2013

The company's core activity is wastewater disposal and treatment, including operation management, logistics, procurement and disposal, inventory management, training and strategic projects related to wastewater disposal.

Waste Management Industry
View profile5(1)
ZENNA AG Logo

ZENNA AG 

Murg · Since 2012

The core activity of ZENNA AG is the consulting, planning and implementation of solar and storage projects, including the execution of feasibility studies, analyses, design, tendering, project management and supervision in the field of renewable energies.

Solar & Photovoltaics
View profile5(1)
SB SolarTech & Bauunternehmung GmbH Logo

SB SolarTech & Bauunternehmung GmbH 

Hölstein · Since 2025

The core activity of SB SolarTech & Bauunternehmung GmbH encompasses the planning and realization of construction projects throughout Switzerland, particularly in the area of installation and assembly of photovoltaic systems, as well as the provision of services in the field of energy efficiency consulting, environmental work, and civil and garden construction.

Solar & Photovoltaics
View profile5(1)
Association Mellifera Logo

Association Mellifera 

Aubonne · Since 2025

The company's core activity is apiculture, i.e. beekeeping and bee care. The company operates apiaries in various regions of Switzerland, particularly in the canton of Vaud, and offers services such as bee colony maintenance, honey production, and courses and workshops on apiculture. Furthermore, the company is committed to promoting biodiversity and sustainability.

Sustainability Sector
View profile5(1)
Landi Rhône-Lavaux SA Logo

Landi Rhône-Lavaux SA 

Collombey · Since 1985

The core activity of LANDI Rhône-Lavaux encompasses three main areas: 1. **Agriculture**: The company supports farmers in the region by providing production resources, seasonal and regional consumer goods, and services. It also promotes the sale of high-quality agricultural products and offers consulting services. 2. **Retail Trade**: LANDI Rhône-Lavaux operates retail stores (LANDI and TopShops) where the local population and travelers can find food and general consumer goods. 3. **Energy**: The company is active in the energy sector by operating AGROLA gas stations, offering electric charging stations and hydrogen fueling stations, and selling heating oil and wood pellets. It also provides services in the field of solar energy.

Agricultural ServicesEnergy SuppliersRetail - Agricultural Materials & Animals
View profile4.4(751)
Mr. Green AG Logo

Mr. Green AG 

Zurich · Since 2010

Mr. Green AG provides collection and recycling services for households, offices and companies, collecting mixed recyclables for sorting and processing and running specialized programs such as tennis ball recycling. The company also operates an online shop offering selected sustainable products and accessories for everyday use.

Waste Management Industry
View profile4.6(258)
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
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.
Per page
102050
  • 1
  • More pages
  • 123
  • 124
  • 125
  • 126
  • More pages
  • 451
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.