Energy & Environment

Wetfields AG 

Ennenda · Since 1981

The core activity of Wetfields AG is water production.

Weyermann K.W. AG 

Bern · Since 1978

Weyermann K.W. AG is a roofing company that installs pitched and flat roofs, façade claddings, thermal insulation and solar systems. The company also provides maintenance (inspections, repairs, cleaning), drone aerial photography, energy consulting, planning and construction management.

WFN - Wasser Fisch Natur AG 

Bern · Since 2014

WFN - Wasser Fisch Natur AG provides consulting, planning and research services related to species protection, renaturation, construction supervision and GIS-based inventories. The company also delivers training and seminars and conducts public outreach as well as concept and inventory work.

CubeDoc-Swiss GmbH 

Pfäffikon Sz · Since 2019

The core activity of White Lobster is to advise and support customers in the development and implementation of sustainable products and services. This includes, among other things: * Market research and benchmark studies * Strategy and concept development * Design and product development * Sustainability consulting and certification * Communications and marketing consulting * Network building and partnerships The company also offers training and workshops on topics such as sustainability, design, and innovation. In addition, it has a network of over 600 experts in 26 countries that support customers in implementing their projects. White Lobster positions itself as an agency for innovation and communication that supports and accompanies customers in the development of sustainable products and services.

White Stag Investing GmbH 

Zurich · Since 2023

The core activity of White Stag Investing is investment consulting and research in the field of sustainable finance, particularly in the areas of water, oceans and biodiversity. The company supports leading financial institutions in developing strategies that take into account the risks and opportunities of these natural capital themes, and also provides research and consulting services.

wiba elektro AG 

Marthalen · Since 2023

The core activity of wiba elektro AG is the provision of electrical engineering services, particularly in the areas of: electrical installations for renovation and new construction projects, service and repairs, network installations, multimedia solutions, building automation, and e-mobility. The company thus offers a wide range of electrical engineering services and positions itself as a reliable partner for electrical work.

Wiesenschwein AG 

Lucerne · Since 2017

The core activity of Wiesenschwein AG is the development and provision of a system for needs-based, sustainable, efficient and scalable pig farming, including the associated technology and services. The company sees itself as a system provider with comprehensive services and offers meat from pasture pigs to consumers and catering businesses.

WiKo Wiedmer Elektro-Kontrollen GmbH 

Däniken So · Since 2007

The core activity of WiKo Wiedmer Elektro-Kontrollen GmbH is the performance of safety inspections and controls of electrical installations, as well as the provision of services in the field of energy consulting, expert opinions and training.

Wild Electric AG 

Kriens · Since 1999

The core activity of WILD ELECTRIC AG is the provision of services in the field of electrical engineering, particularly in the areas of: electrical installations, communication, security, building automation, service and maintenance, electrical inspections, photovoltaics, and e-mobility. The company offers these services for various requirements and projects, with a focus on quality, innovation, and customer orientation.

wildform gmbh 

Aarau · Since 2021

The core activity of Wildform GmbH is the promotion of biodiversity and the ecological enhancement of habitats, particularly in urban and rural areas. The company offers services such as conception, planning and implementation of ecological projects, including facade greening, roof greening, settlement nature and municipal nature conservation. It works with municipalities, architects and other partners to develop sustainable and effective solutions for the conservation and promotion of biodiversity.

Wild Recycling GmbH 

Dübendorf · Since 2009

The core activity of Wild Recycling GmbH is the disposal of metals and related services, including consulting, container service and environmentally and resource-friendly disposal solutions.

WildPunktNef GmbH 

Ramosch · Since 2022

The core activity of WildPunktNef GmbH is consulting and supporting in the fields of ecology, nature conservation, wildlife and hunting. Specifically, this includes: wildlife management (theory and practice), project management and accompaniment, training and further education, wildlife damage prevention, herd protection, hunting planning, hunting dog management, hunting exam preparation, excursions, lectures, media work, specialist events, nature conservation (particularly enhancement and protection of habitats), and ecological enhancement of gardens and landscapes. The company offers these services to administrations, NGOs, associations, and private individuals and is active throughout Switzerland.

Wild Spots GmbH 

Winterthur · Since 2021

The core activity of Wild Spots GmbH is the promotion of biodiversity and quality of life in urban green spaces through design. This includes in particular: Consulting and process design for the integration of biodiversity in construction projects and open space planning; Conceptualization and realization of workshops, networking events and exhibition formats; Visualization and documentation of best-practice examples for biodiversity in urban areas; Conceptualization and implementation of expert excursions and audio walks; Mediation of knowledge and expertise on current trends and needs in open space design and settlement ecology. The company supports professionals from architecture and planning, municipalities and institutions in designing and promoting biodiversity in urban green spaces.

Winasolar AG 

Muotathal · Since 2008

Winasolar AG plans, sells, installs and services photovoltaic systems and related components such as inverters and energy storage. The company also supplies heat pumps under the Winatherm brand and carries out roofing and metalwork (spenglerei) services. Winasolar handles subsidy applications for customers and offers an online PV configurator and appointment booking.

Winasolar Produkt GmbH 

Ettingen · Since 1996

Winasolar Produkt GmbH supplies photovoltaic systems, heat pumps (including the Winatherm brand) and roofing/sheet-metal services, and provides consultation, planning, installation and maintenance.

Windenergie Lindenberg AG 

Müswangen · Since 2009

The core activity of Windenergie Lindenberg AG is the planning, development and operation of wind energy plants for the production of clean energy from renewable sources. The company focuses on the use of wind energy for electricity generation and offers opportunities for private participation in the projects.

Windhubel AG 

Guttet-Feschel · Since 2013

Windhubel AG provides energy consulting, yield calculations and planning for photovoltaic systems with battery storage. Its services include consulting for new buildings, assessment of investment projects, client representation for energy-related building projects, and activities related to renewable-energy equipment and real-estate acquisition, construction and rental.

Wind Infinity AG 

Steinhausen · Since 2022

The core activity of Wind Infinity AG is to provide services and solutions in the field of renewable energies, particularly in the areas of offshore wind energy, green hydrogen, solar energy, batteries and energy storage, CO2 compensation and reduction, renewable energy certificates, and research and development. The company also offers consulting and advisory services, including strategic alliances and mergers & acquisitions, international financing, market analysis and intelligence, and consulting and advisory services for companies and investors in the field of renewable energies. The company's mission is to create a better world for the future by providing green energy and developing innovative solutions for the transition to a more sustainable energy supply.

WIN Energie AG 

Seuzach · Since 2018

The core activity of GRAVAG Energie AG and GRAVAG Thermo is energy supply and consulting, particularly in the field of heat and energy solutions. This includes the planning, installation, maintenance and repair of heating systems, such as heat pumps, gas and oil heating systems, pellet heating systems, hybrid systems, electricity-generating heating systems and photovoltaic systems. Additionally, the company offers energy consulting, network and technical services, as well as the issuance of building energy certificates (GEAK).

Winzeler + Bühl 

Schaffhausen · Since 2011

Winzeler + Bühl provides services in spatial planning and regional development. Activities include municipal land-use and zoning plans, environmental impact reports, strategic advice to municipal authorities, organisational and conflict consulting, and project development such as competitions and specialist plans.

WIPA GreenEnergy AG 

Zug · Since 2009

WIPA GreenEnergy AG provides services, consulting and financial solutions in the field of renewable energies and handles asset and transaction management for wind, photovoltaic, hydropower and gas & steam turbine plants. The company also operates a real estate marketplace and offers property brokerage services.

Ökoversum GmbH 

Schönholzerswilen · Since 2021

The core activity of Wirkstatt Auboden is sustainable agriculture, gardening and animal husbandry, combined with educational and event offers as well as gastronomy. The company operates a garden, a restaurant, a forest garden and keeps animals such as quails, bees, goats and pigs. It also offers spaces for events, coaching and diploma courses. The activities are characterized by the principles of permaculture and the goal of promoting a sustainable and regenerative ecology.

Wiser impact Sàrl 

Paudex · Since 2020

Wiser impact Sàrl provides sustainability and impact consulting, supporting SMEs and mid‑sized companies in developing and implementing impact strategies. Its services include the "B Corp Booster" preparation program for B Corp™ certification, the "Atelier 2tonnes" climate workshop, tailored coaching and training, and a collection of resources and webinars.

WK-Technik Werner Krähenmann 

Frauenfeld · Since 2000

The core activity of WK-Technik is the planning and installation of products, in particular SolarStreetBin and other products from the Finncont Luowia Collection. The company provides expert support from planning to installation.

WL Wärmeversorgung Lausen AG 

Lausen · Since 1994

The core activity of WL Wärmeversorgung Lausen AG is the generation and distribution of district heating to households and companies in Lausen, using renewable energy sources such as wood firing, heat pumps and solar energy.

Wolfstouren GmbH 

Biembach Im Emmental · Since 2021

The core activity of Wolfstouren GmbH is the organization of nature and wildlife tours in Switzerland, particularly on the tracks of wolves and lynxes. The company offers guided excursions and hikes, where participants have the opportunity to observe wild animals in their natural habitat and experience the Swiss nature.

Wonder-Suisse Sàrl 

Châbles Fr · Since 2010

The core activity of Wonder Suisse is the development, manufacture and distribution of products and solutions for the cleaning and maintenance of photovoltaic systems, in particular robots and systems for cleaning solar modules, as well as the provision of services in the field of battery disposal and other environmentally relevant activities.

wooftiger KlG 

Zurich · Since 2021

The company wooftiger develops and sells products made from recycled PET bottles, with the goal of having a positive impact on the environment. The products are practical and stylishly designed, targeting dog owners.

WOOLTI Sagl 

Brione (Verzasca) · Since 1998

The core activity of Woolti is the application of biological treatment methods to reduce ammonia emissions, minimize unpleasant odors and restore balance in ecosystems and biomass. In particular, the company focuses on the treatment of: - Stables - Alpine pastures - Manure storage facilities - Slurry tanks - Sewage treatment plants - Leachate collection systems - Composting facilities - Wastewater treatment plants and clarifiers. In summary, the focus is on environmentally friendly solutions for agriculture and wastewater treatment.

World of Pi AG 

Zurich · Since 2024

World of Pi AG provides the smart product passport “Pi”, a digital product identity and platform that lets manufacturers publish product information and services via QR codes to support maintenance, traceability and circular-economy use cases.

WRA Schweiz, Naturkläranlagen AG 

Visp · Since 1998

W. Rokitzky AG 

Wallisellen · Since 1987

The core activity of W. Rokitzky AG is the planning, installation, maintenance and servicing of heating, ventilation, air conditioning and sanitary systems, as well as the integration of renewable energies. This also includes a standby service and the performance of maintenance and repair work on these systems.

W. Rokitzky AG 

Winterthur · Since 2023

W. Rokitzky AG is an owner-operated trade company providing planning, installation, renovation and maintenance of heating, cooling, ventilation, air-conditioning and sanitary systems. The company also delivers service and on-call emergency support, consulting and expert reports, and integrates renewable technologies such as heat pumps and thermal solar systems into building services.

WSBA GmbH Wertstoffbewirtschaftung 

Zurich · Since 2008

The core activity of WSBA (Wertstoffbewirtschaftung GmbH) is the consulting and optimization of material flow and waste management processes for companies. This includes the analysis and evaluation of materials and waste, the development of company-specific solutions for the disposal and recycling of materials, as well as the guarantee of maximum value creation and cost optimization in the disposal process.

WST Solar GmbH 

Herrenschwanden · Since 2001

Wunderli Management AG 

Küsnacht Zh · Since 2004

Wunderli Management AG provides energy business consulting and implementation services for energy projects, including energy strategy development, project management, and business-case development and implementation for battery storage, PV contracting and energy optimisation. The company collaborates with a network of partners for energy contracting, heat pumps, PV systems, ZEV/vZEV setups and billing, PPA and e‑mobility infrastructure.

wupservice GmbH 

Emmenbrücke · Since 2022

The core activity of WUP Service GmbH is the procurement, sale and reuse of pallets, particularly Euro pallets, as well as providing services related to pallet logistics and recycling. This includes: the purchase and sale of new and used pallets; the acquisition of pallet stocks from companies and private customers; the execution of pallet exchange transactions; and the collection and reuse of pallets to free up storage space and create a sustainable added value for companies.

WVN Wärmeverbund Niederhünigen GmbH 

Niederhünigen · Since 2021

WVN Wärmeverbund Niederhünigen GmbH produces, distributes and sells heat energy using a combustion plant and an associated pipeline network. The company uses wood from the nearby forest as fuel.

W&W, Waste&Watt Sàrl 

Petit-Lancy · Since 2018

The company W&W (Waste & Watt) offers solutions for sustainable development, particularly in the areas of energy efficiency and waste management. The core activities include: energy audits and optimization for companies and municipalities, development of strategies for reducing energy consumption and waste, implementation of measures to increase energy efficiency and promote renewable energies, and consulting and support for the implementation of sustainable solutions for companies, municipalities, and private individuals. W&W's core activities focus on supporting companies and municipalities in implementing the 2050 strategy and reducing their ecological footprint.

WWZ Energie AG 

Zug · Since 2001

WWZ Energie AG is a utility and service provider offering energy, telecommunications, e-mobility and drinking water services. Its offerings include electricity and gas, heating/cooling contracting, fiber Internet, TV, mobile and fixed-line services, charging solutions and water infrastructure.

WWZ AG 

Zug

WWZ AG provides services in energy, telecommunications, water and e‑mobility, including electricity, gas, heat/cooling and drinking‑water services. Its portfolio also includes internet, TV, fixed‑line and mobile services, smart metering and charging infrastructure for electric vehicles.

Wyder Solar GmbH 

Sins · Since 2013

Wyder Solar GmbH provides consulting, planning and installation of solar projects, including photovoltaic systems and solar hot‑water installations, and integrates storage, e‑mobility and smart‑home solutions in holistic planning. The company also performs building‑envelope work such as pitched and flat roofs, facades and modernization projects, and offers monitoring via a Solarlog portal.

Wymaro GmbH 

Amriswil · Since 2007

The core activity of Pangas Gas & More is the marketing and distribution of gases and related products as well as services in the areas of gas supply, welding technology, barbecue equipment and camping gear.

Wyna Energie AG 

Reinach Ag · Since 2010

The company offers a wide range of services and products in the fields of energy, telecommunications, electrical installations, and building automation. The core activities include: energy consulting and services for private individuals and companies, including energy efficiency optimization and consulting; planning, installation, and maintenance of solar systems and other renewable energy sources; electrical installations and services, including building automation and rental equipment; telecommunications services, including internet, telephony, and data transmission; network services, including transformer stations, public lighting, and gas installations; and digitalization services, including cloud computing, data center housing, and VoIP solutions. The company thus offers a comprehensive range of services and products tailored to the needs of private individuals, companies, and the public sector.

WYSolar GmbH 

Oberentfelden · Since 2018

The core activity of WYSolar GmbH is the planning, consulting, installation and maintenance of photovoltaic systems (solar systems) as well as the provision of storage systems for renewable energies. Additionally, the company offers services in the field of E-Mobility, including the installation of charging stations for electric vehicles.

Wyss Academy for Nature at the University of Bern 

Bern · Since 2020

The core activity of Wyss Academy for Nature at the University of Bern is research, development and implementation of solutions for the conservation and sustainable use of nature, particularly in the areas of environment, energy and economy. The company focuses on promoting sustainable entrepreneurship, empowering indigenous populations and developing strategies to address environmental problems such as wildfires. It works closely with partners from various fields and has regional hubs in Bern, East Africa, Southeast Asia and South America.

Wyss Electro-Support 

Mels · Since 2013

The core activity of Wyss Electro-Support is the provision of services in the field of photovoltaics.

Wyss Transporte + Entsorgung GmbH 

Dulliken · Since 2019

The core activity of Wyss Dulliken encompasses three main areas: 1. **Agriculture**: The farm spans 34 hectares and is managed with a focus on animal welfare. 2. **Green waste collection and processing**: The company collects garden waste and processes it into high-quality fertilizer. 3. **Waste collection and disposal**: Wyss Dulliken is responsible for waste collection in the municipality of Dulliken and also offers trailer rentals for garden waste disposal.

Wytor AG 

Laupen Zh · Since 1999

The core activity of Wytor AG is the development, production and marketing of algae products and plant aids for agriculture and horticulture. This includes in particular the manufacture and distribution of products such as Glenor KR+, Litho KR+, Granulit KR+, Coralite KR+ and other algae products, which are used as fertilizers, soil conditioners and plant strengthening agents.

Xenviro AG 

Zollikon · Since 1992

The core activity of Xenviro AG involves developing and applying customer-specific problem solutions in the following areas: oil contamination decontamination, oil pollution cleaning, irreversible binding of heavy metal contamination, and disinfection: removal of bacteria, viruses and other microorganisms.