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9'016 companies found

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

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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

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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

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Wasserversorgungsgenossenschaft Rüegsau und Umgebung

Rüegsauschachen · Since 1901

Water Supply

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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

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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

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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

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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

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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

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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

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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.