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9'014 companies found

WeGaw SA

Lausanne · Since 2016

The core activity of Wegaw SA is the development and provision of digital solutions for the energy industry, particularly in the field of hydropower. By combining geospatial data, artificial intelligence and hydrological models, Wegaw offers products and services that enable energy companies to optimize their production and trading strategies, minimize risks and improve their climate resilience.

Sustainability Sector

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Weiss und Partner GmbH

Münchenstein · Since 2015

The core activity of Weiss & Partner encompasses services in the construction and real estate management sector, including: High-rise and civil engineering, Property management, Garden design and maintenance, Painting and roofing, Metal construction work, Dismantling, deregistration and disposal of old oil tanks, Facility management, Final cleaning of apartments with acceptance guarantee, Janitorial services, Special cleaning. The company thus offers a wide range of services for construction and real estate projects.

Building ConstructionCivil EngineeringHorticulture & Landscaping

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Weit&Breitsicht GmbH

Solothurn · Since 2015

The core activity of Weit&Breitsicht GmbH is consulting and project work in the areas of sustainability, energy, mobility, economy and politics. The company offers services such as spatial planning, communication, education and school gardens, and deals with topics such as environmental protection, sustainable development and political consulting.

Management ConsultingSustainability Sector

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WELDEX GmbH

Wohlen Ag · Since 2020

The core activity of Weldex is the planning, installation and maintenance of solar energy systems for private households and companies, including the provision of solar modules and charging stations for electric vehicles.

Solar & Photovoltaics

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Welz Wasser- und Energietechnik AG

Trogen · Since 2013

The core activity of Welz Wasser & Energietechnik AG encompasses the planning, installation and maintenance of heating, sanitary and climate technology systems. This includes, in particular, consulting, planning and installation of heat generation systems, such as heat pumps, as well as the renovation and servicing of existing systems. Furthermore, the company also offers services in the field of sanitary technology, such as planning and installation of bathrooms.

Solar & Photovoltaics

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WeRec AG

Gundetswil · Since 2014

The company's core activity is waste disposal and waste management, including planning, consulting, technology, logistics and services in the field of waste disposal. The company offers a comprehensive range of disposal solutions, from disposal planning and consulting to the sale and maintenance of disposal technology to disposal logistics with its own vehicle fleet.

Waste Management Industry

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WEREC Technik GmbH

Gundetswil · Since 2008

WEREC Technik GmbH supplies and services technical waste-management equipment and provides related services including installation, maintenance and customer support. The company offers volume-reduction systems (presses, balers, compactors), kitchen waste treatment and vacuum systems, plus collection and logistics services for waste disposal and recovery aimed at hospitality customers.

Waste Management Industry

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WerkRaumKlima GmbH

Lucerne · Since 2024

WerkRaumKlima GmbH provides interdisciplinary climate- and energy-focused engineering services for buildings and outdoor spaces, including energy concepts, building-envelope and systems simulations, and comfort and microclimate studies. The company uses a simulation-based design process to develop green building solutions that reduce resource use, support circular material strategies and optimise energy performance and occupant comfort.

Technical Consulting & EngineeringSustainability Sector

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Werner Büchel AG

Oberriet Sg · Since 1993

The core activity of Werner Büchel AG consists of planning, installation, maintenance and repair of heating, sanitary and renewable energy systems, including oil burner service, solar and heat pump systems, as well as carrying out core drilling operations.

Solar & Photovoltaics

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Wertstoff Schweiz AG

Marbach Sg · Since 2012

Wertstoff Schweiz AG provides waste management services and environmental consulting for companies. Its services include trading and recovery of residual and recyclable materials, composting according to national composting regulations, mobile shredding and screening of waste, transport and site traffic services, landscaping and snow clearance.

Waste Management Industry

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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.