Energy & Environment

Wärmeverbund Zollikofen AG 

Zollikofen · Since 2021

The core activity of the company is municipal administration and services, including location promotion, business consulting, real estate and building land management, education, culture, security, environment and infrastructure. This is the official website of the municipality of Zollikofen.

warm und kalt GmbH 

Raron · Since 2022

warm und kalt GmbH provides installation services for heating and air-conditioning systems.

Wascom AG 

Sursee · Since 2000

The core activity of WASCOM AG is the reduction of nitrous oxide emissions, particularly in the processing of all necessary documents and the recording of emission and efficiency values related to sewage sludge incineration. The company supports its customers in complying with environmental regulations and helps them to successfully implement their projects.

Wassergenossenschaft Allenwinden 

Allenwinden · Since 1961

The core activity of the Wassergenossenschaft Allenwinden company is the supply of Allenwinden with drinking and utility water as well as the provision of fire extinguishing water.

Wassergenossenschaft Haldi 

Haldi B. Schattdorf · Since 1947

The company's core activity is municipal administration, including public services such as social services, taxes, transportation and mobility, water, military service, civil registry, experience, leisure and culture, as well as the administration of authorities, commissions and cantonal authorities. It is a public administrative unit responsible for the administration and organization of municipal affairs.

Wassergenossenschaft Rotkreuz und Umgebung 

Rotkreuz · Since 1912

The core activity of Wassergenossenschaft Rotkreuz and Umgebung is the planning, maintenance and management of a drinking water supply network, including water treatment, quality assurance and the provision of water connections for the municipality.

Wasserkraftwerk Peist AG 

Arosa · Since 2017

wasserradbau guidi gmbh 

Männedorf · Since 2019

The core activity of Wasserradbau GmbH is the construction and installation of water wheels for power generation.

Wasserstoffproduktion Ostschweiz AG 

St. Gallen · Since 2019

The core activity of Wasserstoffproduktion Ostschweiz AG is the production of hydrogen as a future energy carrier for mobility, particularly for the operation of hydrogen-powered vehicles. The company makes the produced hydrogen available at AVIA hydrogen filling stations to offer a sustainable alternative to fossil fuels.

Wasserverbund Birstal 

Zwingen · Since 1997

Wasserverbund Birstal operates springs, pumping stations, reservoirs and transmission pipelines and supplies drinking water to its member municipalities. Members include Laufen, Zwingen, Blauen and Nenzlingen; primary sources cited are the Pfandel and Bernhardsmätteli springs and the Weiden pumping station, and storage reservoirs include Hard and Hägenberg.

Wasserverbund Hinteres Leimental AG 

Hofstetten So · Since 1982

Wasserverbund Hinteres Leimental AG is a water utility that supplies its member municipalities with water from the Sternenberg spring and by joint purchase from the Reinach/BL waterworks, and distributes surplus water. The company operates a filtration plant, reservoirs and pump stations and maintains hydraulic and control systems for distribution and monitoring.

Wasserverbund Region Bern AG 

Bern · Since 1974

The core activity of Wasserverbund Region Bern AG is the extraction, treatment, storage and distribution of drinking water to the population in the supply area. This includes the operation of groundwater wells, reservoirs, pumping stations and water pipes, as well as ensuring water quality and safety.

Wasserverbund Bipperamt AG 

Oberbipp · Since 1997

Wasserverbund Kiesental AG 

Konolfingen · Since 1999

Wasserverbund Kiesental AG supplies drinking, process and firefighting water to its shareholder municipalities. It operates and maintains the primary infrastructure — including reservoirs, pump stations, groundwater abstractions and spring sources — and delivers water into the municipal distribution networks under supply contracts.

Wasserversorgung Axenfels AG 

Morschach · Since 1982

The core activity of Wasserversorgung Axenfels AG is the extraction, treatment, storage, control and distribution of drinking water to the population and companies in the supply area, particularly in the village of Morschach and the Swiss Holiday Park.

Wasserversorgung AG Schüpfheim 

Schüpfheim · Since 1964

The core activity of Wasserversorgung AG Schüpfheim is the extraction, treatment and distribution of drinking water for the municipality of Schüpfheim.

Wasserversorgung Ballwil Genossenschaft 

Ballwil

The core activity of Wasserversorgung Ballwil Genossenschaft is the extraction, distribution and supply of drinking water to households, agricultural, commercial and industrial enterprises in the municipalities of Ballwil and Ottenhusen, as well as WV Fenkrieden. Additionally, the company provides a contracted amount of firefighting water for the fire department.

Wasserversorgung AG Engelberg 

Engelberg · Since 1966

The core activity of Wasserversorgung AG Engelberg is the extraction, treatment and distribution of drinking water for the population in the Engelberg valley.

Wasserverbund Region Solothurn AG 

Solothurn · Since 2012

Wasserverbund Region Solothurn AG supplies its shareholders and third parties within a defined service perimeter with drinking, utility and fire-fighting water and operates the associated infrastructure. Operational activities are carried out under management contracts with the shareholders.

Wasserversorgung Düdingen AG 

Düdingen · Since 1914

Wasserversorgung Düdingen AG is responsible for ensuring the municipality's drinking water supply under a service agreement with the local authority. It operates spring and groundwater abstractions, manages reservoirs where waters are combined, and supplies the distribution network. The organisation’s activities are governed by its statutes and the municipal drinking water regulation.