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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,805 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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IndustryEnergy & Environment
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Matching companies

9'003 companies found

WS

Wasserversorgungsgenossenschaft Schwerzlen 

Inwil · Since 1947

Water Supply
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WS

Wasserversorgungsgenossenschaft Schülen 

Willisau · Since 1959

Water Supply
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WS

Wasserversorgungs-Genossenschaft Seftau 

Bremgarten B. Bern · Since 1921

Water Supply
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WS

Wasserversorgungsgenossenschaft Siebeneich 

Kerns · Since 1908

Water Supply
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WS

Wasserversorgungsgenossenschaft Spengelried 

Rosshäusern · Since 1922

Water Supply
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WS

Wasserversorgungsgenossenschaft Spitzfluh 

Lucerne · Since 1925

Water Supply
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WS

Wasserversorgungsgenossenschaft Steinach 

Steinach · Since 1902

Water Supply
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WT

Wasserversorgungsgenossenschaft Twerenegg 

Menznau · Since 1963

Water Supply
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WV

Wasserversorgungsgenossenschaft Volligen-Treib 

Seelisberg · Since 1950

Water Supply
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WW

Wasserversorgungsgenossenschaft Walten-Laufmatt-Dietisberg 

Läufelfingen · Since 1950

Water Supply
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WW

Wasserversorgungsgenossenschaft Wyden-Winterkraut 

Mamishaus · Since 1955

Water Supply
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W(

Wasserversorgungsgenossenschaft (WVG) Riedstätt 

Riedstätt · Since 1954

Water Supply
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WW

Wasserversorgungs-Genossenschaft Wangenhubel 

Oberwangen B. Bern · Since 1954

Water Supply
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WZ

Wasserversorgungsgenossenschaft Zell 

Zell Lu

Water Supply
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WW

Wasserversorgung Werthenstein-Unterdorf Genossenschaft 

Werthenstein · Since 1914

Water Supply
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WG

Wasserweg GmbH 

Biel/Bienne · Since 2022

Sustainability Sector
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WW

Wasserversorgung Wilbrunnen AG 

Unterägeri · Since 1964

Water Supply
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WA

Waste Allocation Systems SA 

Orbe · Since 2016

Waste Management Industry
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W2

WASTE 2 ENERGY Sàrl 

La Neuveville · Since 2023

Waste Management Industry
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WS

WastEn Swiss Sagl 

Chiasso · Since 2018

Waste Management Industry
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WC

WasteWater Currency Sàrl 

Nyon · Since 2019

Sustainability Sector
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WS

Watr Stiftung 

Zug · Since 2021

Sustainability Sector
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WS

wattNgo Sàrl 

Vionnaz · Since 2021

Sustainability Sector
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WS

WattSolar Sàrl 

Lully Vd · Since 2024

Solar & Photovoltaics
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WS

Watt Smart Suisse Sàrl 

Bernex · Since 2024

Sustainability Sector
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WS

WATTSUN SA 

Geneva · Since 2023

Solar & Photovoltaics
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WG

Weber GmbH 

Sursee · Since 2017

Solar & Photovoltaics
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WS

Weber Sonnenenergie GmbH 

Bubendorf · Since 2017

Solar & Photovoltaics
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WO

Weder's one for all Werk 

Kefikon Tg · Since 2022

Waste Management Industry
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GE

Gaia Energy Group SA 

Lugano · Since 2023

Solar & Photovoltaics
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WR

Weidgenossenschaft Rudolfstetten 

Rudolfstetten · Since 1925

Sustainability Sector
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WB

Wellinger Beratungen 

Ammerswil Ag · Since 2014

Solar & Photovoltaics
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WM

We Make Solutions Technology Group GmbH 

Wollerau · Since 2016

Waste Management Industry
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WE

Wermeille Emmanuel 

Villiers · Since 2005

Sustainability Sector
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WS

Werner Solenthaler AG 

St. Margrethen Sg · Since 1989

Waste Management Industry
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WA

Wertag Aktiengesellschaft für Wertstoffsortierung und Deponiebetrieb 

Horgen · Since 1963

Waste Management Industry
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WA

Wesba AG 

Emmen · Since 2006

Solar & Photovoltaics
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WB

WEST BRIDGE TECHNOLOGY SA 

Biel/Bienne · Since 2023

Solar & Photovoltaics
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WW

Wetras Wärmeverbund AG 

Schwarzenburg · Since 2021

Energy Suppliers
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WA

Wey Agro GmbH 

Altishofen · Since 2013

Solar & Photovoltaics
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WI

wigger innovativ-power 

Nottwil · Since 2018

Solar & Photovoltaics
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WK

Wild Keepers Sàrl 

Préverenges · Since 2010

Sustainability Sector
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WW

Wildpunkt Willisch 

Trubschachen · Since 2015

Sustainability Sector
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WG

Wilhelm Grillo Handelsgesellschaft AG 

Rotkreuz · Since 1958

Waste Management Industry
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W&

WILL & POWER Sagl 

Rivera · Since 2011

Sustainability Sector
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WU

Windpark Uri AG 

Göschenen · Since 2024

Energy Suppliers
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WS

Windwatt SA 

Versoix · Since 1998

Energy Suppliers
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WL

WintiWurm Loser 

Winterthur · Since 2024

Sustainability Sector
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WE

Win-Win Eco-Solutions (W.E) Sàrl 

Petit-Lancy · Since 2010

Sustainability Sector
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WE

Wipfli Engineering Solutions 

Riehen · Since 2023

Solar & Photovoltaics
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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.
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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.