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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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IndustryEnergy & Environment
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9'016 companies found

xsats AG Logo

xsats AG 

Zug · Since 2021

xsats AG provides energy hardware and software solutions focused on heating, with offerings described as optimised for the digital age.

Sustainability SectorSoftware Development
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Y-CAD SA Logo

Y-CAD SA 

Yverdon-Les-Bains · Since 2020

Y-CAD SA plans, constructs and operates district heating and district cooling networks and the associated thermal production facilities, with a focus on using local and renewable energy sources. Services include feasibility studies, construction, operation and financing/contracting solutions for supplying thermal energy to property owners and asset managers.

Energy Suppliers
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ycos GmbH Logo

ycos GmbH 

Rain · Since 2010

The core activity of the company "allesdrinbox" is the marketing and shipping of premium boxes for a sustainable lifestyle. The company offers a selection of products that are compiled and hand-packed in boxes to provide customers with a comprehensive solution for their needs. The boxes can be ordered online or picked up directly at the store location or warehouse.

Sustainability Sector
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Yellowprint Sàrl Logo

Yellowprint Sàrl 

Confignon · Since 2008

The core activity of Yellowprint is project management and support for photovoltaic projects, including planning, coordination, monitoring and management of solar systems, as well as consulting and support for the realization of photovoltaic projects.

Solar & Photovoltaics
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Yess Impact - Ammerschuber Consulting Logo

Yess Impact - Ammerschuber Consulting 

Zurich · Since 2019

The core activity of YESS Impact is to advise and support organizations in the areas of environment, social affairs and corporate governance (ESG), with the goal of promoting sustainable changes in various sectors. This includes, among other things: Strategic consulting on social impact and sustainability, project management for ESG projects, conducting workshops and training sessions, developing solutions for social and environmental challenges, and promoting business models that have a positive impact on society and the environment. The company supports customers from various sectors, including companies, non-governmental organizations, public institutions, financial institutions and foundations, in achieving their sustainability goals.

Sustainability Sector
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Youdera Energie SA Logo

Youdera Energie SA 

Lausanne · Since 2016

Youdera Energie SA provides photovoltaic solutions, including solar subscription plans (Solar Abo) and direct purchase of solar systems, as well as battery storage and e‑mobility services. Its services cover the planning, installation, operation and maintenance of solar installations.

Energy Suppliers
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Younergy Solar (Suisse) SA Logo

Younergy Solar (Suisse) SA 

Crissier · Since 2021

Younergy Solar (Suisse) SA provides planning, installation, operation and maintenance of photovoltaic systems for residential and commercial clients. Services include purchase and subscription solar models, battery storage and e‑mobility integration, plus monitoring, warranty management and assistance with incentives and paperwork.

Solar & Photovoltaics
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Your Energy Swiss GmbH Logo

Your Energy Swiss GmbH 

Hinwil · Since 2013

The core activity of Your Energy Swiss GmbH is the planning, development and distribution of solar systems and related components, such as solar modules, power optimizers and energy storage systems, for private and commercial customers in Switzerland. The company also offers 360° support for specialist partners and solar installers, including marketing and sales support as well as financing offers.

Solar & Photovoltaics
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Y-SOLAR Analytics GmbH Logo

Y-SOLAR Analytics GmbH 

Solothurn · Since 2022

Y-SOLAR Analytics GmbH develops data-driven models to assess site suitability and forecast the economic performance of photovoltaic systems, with a focus on multi-family residential buildings. The company provides roof-leasing and PV financing solutions, optimized ZEV (collective self-consumption) systems, real-time monitoring and ZEV-compliant billing services.

Solar & Photovoltaics
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y-tronics GmbH Logo

y-tronics GmbH 

Wolfhausen · Since 2014

y-tronics GmbH provides consulting, system design, installation and remote support for standalone power systems and for marine and mobile electrical systems. The company supplies and integrates components such as batteries, chargers, inverters, solar equipment and navigation and monitoring devices.

Technical Consulting & EngineeringSolar & PhotovoltaicsElectrical Industry
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ZAFFARONI S.R.L., Milano, succursale de Gingins Logo

ZAFFARONI S.R.L., Milano, succursale de Gingins 

Gingins · Since 2014

The company offers services and products in the field of technical building equipment, including: planning, construction and operation of mechanical systems such as heating, air conditioning, ventilation and water treatment; installation and maintenance of electrical systems, including high-voltage networks and emergency power supply; planning and installation of security systems such as burglar alarm systems, CCTV systems and fire protection systems; services in the field of energy efficiency and facility management; planning and construction of industrial plants and production facilities; renovation and conversion of buildings, including office buildings, hotels, hospitals and residential buildings. The company offers its services and products to both the private and public sectors and operates in various countries, including Italy and Switzerland.

Technical Consulting & EngineeringElectrical Planning & InstallationSolar & Photovoltaics
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Zaffrane Sàrl Logo

Zaffrane Sàrl 

Lausanne · Since 2020

The core activity of Zaffrane Sàrl is the cultivation, production and marketing of high-quality saffron and other natural food products. The company focuses on promoting sustainable and fair practices in agriculture and trade by working directly with the best producers and ensuring that farmers receive a fair wage. Zaffrane Sàrl also provides information and guidance on the use of saffron and other natural products, aiming to take customers on a journey through the world of natural aromas and flavors.

Sustainability Sector
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ZALA AG Logo

ZALA AG 

Aarwangen · Since 2000

The core activity of ZALA AG is wastewater treatment. The company operates a central wastewater treatment plant (ARA) at its site in Aarwangen, the ARA Eymatte, and is responsible for wastewater treatment for 20 municipalities in the Oberaargau region.

Waste Management Industry
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Zanella Energie GmbH Logo

Zanella Energie GmbH 

Turtmann · Since 2015

Solar & Photovoltaics
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ZARODEM SA Logo

ZARODEM SA 

Taverne · Since 2018

The core activity of Zarodem company primarily involves the trade and recycling of metals, particularly non-ferrous metals such as copper, brass and aluminium. This includes: * Dismantling and demolition of industrial plants and buildings * Collection and processing of metal waste * Trading in metals and recycled products * Financial services and investments in metals * Storage and management of metal stocks The company offers its customers a comprehensive solution for the recovery of metal waste and the procurement of recycled metals.

Waste Management Industry
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Zehnder Elektrotechnik AG Logo

Zehnder Elektrotechnik AG 

Eriswil · Since 2016

The core activity of Zehnder Elektrotechnik AG includes electrical installations, renewable energies, service and repairs in the field of electrical engineering, as well as the sale of household appliances and multimedia products.

Electrical Planning & InstallationSolar & Photovoltaics
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Zelsius AG Logo

Zelsius AG 

Root D4 · Since 2024

Zelsius AG develops software and a CO2 calculator that enables Swiss SMEs to record emissions and produce corporate and product carbon footprints in accordance with recognised standards.

Sustainability SectorSoftware Development
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ZEMALE AG Logo

ZEMALE AG 

Einigen · Since 2022

The core activity of ZEMALE AG is the development and marketing of an innovative ashtray integrated into cigarette packaging, aimed at solving the environmental problem of discarded cigarette butts.

Sustainability Sector
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ZENDRA AG Logo

ZENDRA AG 

Chur · Since 2024

The core activity of ZENDRA AG is the development and implementation of photovoltaic systems, particularly for alpine use. This includes the planning, design and dimensioning of PV systems, including substructures, PV modules and DC electrical systems. The company also offers static solutions, digitalization services and consulting in the field of photovoltaics.

Solar & Photovoltaics
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Zenergia SA Logo

Zenergia SA 

Glattbrugg · Since 2008

Sustainability Sector
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Zentralwärme Ost AG Logo

Zentralwärme Ost AG 

Schindellegi · Since 2021

Zentralwärme Ost AG is an energy supplier specializing in district heating solutions using renewable biomass (log wood, pellets or wood chips), offering consulting, system planning, installation, maintenance and financing services for heating systems.

Energy Suppliers
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Zenyt Energie AG Logo

Zenyt Energie AG 

Buchs Sg · Since 2023

Zenyt Energie AG designs, plans and installs photovoltaic (PV) systems and provides consultation, installation, maintenance and cleaning services, including energy-control solutions to optimize self-consumption.

Solar & Photovoltaics
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Zeppelin JLH AG Logo

Zeppelin JLH AG 

Bottmingen · Since 2020

The core activity of Zeppelin JLH AG is the execution of dismantling and demolition work in industrial, commercial and residential buildings, in particular: dismantling and demolition of steel structures, tank facilities, heating, ventilation and air conditioning systems as well as chemical plants; disposal of contaminated materials, including PCB-containing tanks, tar insulation and chemical coatings; tank cleaning and disposal, including pumping and cleaning of oil tanks; installation of new facilities under difficult conditions; and professional disposal of hazardous substances and deregistration with authorities and water protection agency.

Waste Management Industry
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Zero Edition GmbH Logo

Zero Edition GmbH 

Chur · Since 2021

The core activity of Zero Edition is the assessment of real estate risks, particularly in terms of transition risks in real estate financing, with the aim of preserving the real estate value in the future and not letting it fall due to political measures, technical progress and changed market sentiments.

Technical Consulting & EngineeringSustainability Sector
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ZeroWaste Switzerland Logo

ZeroWaste Switzerland 

Cottens Vd · Since 2020

The company's core activity is the promotion and implementation of zero-waste practices and sustainable resource use in businesses, communities and society, with the goal of promoting environmental protection and sustainability.

Sustainability Sector
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ZHAM GmbH Logo

ZHAM GmbH 

Zurich · Since 2022

The core activity of ZHAM is the development, production and marketing of environmentally friendly cleaning products in the form of concentrates, packaged in glass bottles that can be recycled after use. The company offers an innovative solution for reducing single-use plastic and waste in households.

Sustainability Sector
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ZHC Holding AG Logo

ZHC Holding AG 

Altendorf · Since 2015

The core activity of Zurich Holding Company (ZHC) is the investment and management of fixed-income assets in Europe, particularly in the area of commercial real estate and renewable energy, such as solar energy.

Sustainability Sector
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Ziegelei H. Deponie AG Logo

Ziegelei H. Deponie AG 

Römerswil Lu · Since 2000

Waste Management Industry
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Zillig GmbH Logo

Zillig GmbH 

St. Gallen · Since 1993

The core activity of Zillig GmbH is the planning, installation and repair of sanitary facilities, particularly in the area of bathroom renovations, as well as the execution of plumbing work, solar systems and lightning protection systems.

Sheet Metal WorkSolar & Photovoltaics
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Zincarlin Sagl Logo

Zincarlin Sagl 

Morbio Superiore · Since 2005

The company is primarily active in the fields of tourism and sustainable development. It offers services such as promoting climate protection, developing sustainable projects, supporting companies in implementing Corporate Social Responsibility (CSR), and promoting barrier-free vacations. It also works on developing digital platforms to foster collaboration between companies and the community.

Sustainability Sector
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Zirkular GmbH Logo

Zirkular GmbH 

Basel · Since 2020

The core activity of Zirkular is to advise and support real estate developers and architects in planning and implementing construction projects in the field of circular economy, particularly in the reuse of building components and the preservation of existing buildings.

Sustainability Sector
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zirkulit Beton AG Logo

zirkulit Beton AG 

Kloten · Since 2023

zirkulit Beton AG distributes circular concrete, including the product families zirkulit beton® and zireco beton®. The concrete is produced according to SN EN 206 and SIA 2030:2021, has technical properties equivalent to primary concrete, and is used in standard strength classes up to C30/37 for various building elements.

Sustainability SectorGlass, Ceramics, Stone & Construction Materials Industry
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Zmotec Solartechnik GmbH Logo

Zmotec Solartechnik GmbH 

Saanen · Since 2009

The core activity of ZMOTEC Solartechnik GmbH is the planning, installation and distribution of thermal solar systems and wood boilers for hot water preparation.

Solar & Photovoltaics
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ZO Green AG Logo

ZO Green AG 

Hinwil · Since 2005

The core activity of ZO Green AG is composting and operating a composting plant in Hinwil. The company also offers an event and party room for occasions and events, but the main activity appears to be composting.

Waste Management Industry
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ZOKI Räumungen Dulic Logo

ZOKI Räumungen Dulic 

Affoltern Am Albis · Since 2024

The core activity of Zoki Express Räumungen is the execution of clearings, disposal and recycling. This includes in particular: Clearing of residential and commercial premises, Disposal of waste and no longer needed items, Recycling of materials wherever possible to minimize environmental impact. The company offers a comprehensive service that ranges from planning to execution of clearing and disposal and adapts to the individual needs of customers.

Waste Management Industry
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zoontec AG Logo

zoontec AG 

Lucerne · Since 2014

The core activity of zoontec AG is the planning, implementation and maintenance of innovative energy systems for buildings and areas, with a focus on energy efficiency, sustainability and the use of synergies between energy and communication. This includes in particular the areas of: * Energy concepts and planning for buildings and areas * Implementation of renewable heating systems and solar power plants * Development of intelligent solutions for hot water management and distribution * Consulting and planning for heating, ventilation, air conditioning, sanitation and electrical systems * Online energy billing and management The company aims to make buildings and areas sustainable and efficient by offering innovative energy systems and solutions that save resources and reduce costs.

Sustainability Sector
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Zorom AG Logo

Zorom AG 

Baar · Since 2021

The core activity of the company Zorom is the recycling and trading of metals, including ferrous and non-ferrous metals, as well as the disposal of electronic waste, batteries and aircraft wreck parts. The company provides comprehensive services for the recycling industry, including the collection, processing and marketing of recycled metals.

Waste Management Industry
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Züger Entsorgung + Recycling AG Logo

Züger Entsorgung + Recycling AG 

Galgenen · Since 2008

Züger Entsorgung + Recycling AG provides waste disposal and recycling services, including collection and processing of frying oil, green waste, and disposal services for restaurants and hotels. The company operates a biogas plant and is involved in biodiesel sales, marketing and consulting.

Waste Management Industry
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Zumtec GmbH Logo

Zumtec GmbH 

Sissach · Since 2012

Zumtec GmbH develops, manufactures and trades products for environmental engineering. The company offers solutions for environmental protection, energy, recycling and waste disposal.

Sustainability SectorWaste Management Industry
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Zürcher Kies und Transport AG Logo

Zürcher Kies und Transport AG 

Zuzwil Sg · Since 1996

The core activity of Zürcher Kies und Transport AG encompasses the areas of transport, disposal, recycling, landfills, gravel and natural stones. Specifically, the company offers the following services: * Transport of goods with tipper and dump trucks, crane, special and heavy-duty vehicles * Disposal and recycling of mineral materials such as paving, concrete, gravel, natural stones and mixed demolition waste * Operation of recycling facilities and landfills * Processing of materials into quality-controlled products * Logistics and collection service for construction materials and stone products * Remediation of contaminated sites and project management The company positions itself as a sought-after partner in the areas of transport, disposal and recycling.

Waste Management IndustryLogistics & Transport Companies
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Zürichsee Solarstrom AG Logo

Zürichsee Solarstrom AG 

Zurich · Since 2009

Zürichsee Solarstrom AG is a project developer, owner and operator of photovoltaic (PV) installations. The company develops, constructs, commissions and operates PV projects and markets the produced electricity and associated environmental certificates (guarantees of origin); its shareholders include private investors and municipal utility entities.

Solar & Photovoltaics
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Zurich Soft Robotics GmbH Logo

Zurich Soft Robotics GmbH 

Zurich · Since 2022

The company Solskin (Zurich Soft Robotics GmbH) develops and offers innovative solutions for sustainable and comfortable building envelopes, particularly through the integration of renewable energies and energy-efficient systems. The core activity includes the development and distribution of products such as Solskin System, Solskin Pergola, and Solskin Smart Tree, which combine aesthetics, sustainability, and energy efficiency.

Solar & Photovoltaics
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Zwyer AG Logo

Zwyer AG 

Hofstatt · Since 2017

The core activity of Zwyer AG includes machine operation, trade in energy wood, production of wood products such as wood chips, round bales and square bales, as well as services like wood chipping, transportation, plant protection and mowing services. Additionally, the company offers the sale of plant charcoal and EM products.

ForestryEnergy SuppliersWood Processing & Sawmills
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ZYTLOS UPCYCLING STUDIO BENNO SCHICKER Logo

ZYTLOS UPCYCLING STUDIO BENNO SCHICKER 

Lucerne · Since 2023

The company ZYTLOS UPCYCLING STUDIO is engaged in upcycling, particularly in the utilization and processing of old bicycle components into new products, such as belts, and the sale of vintage racing bike components.

Sustainability Sector
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Schnyder PV GmbH Logo

Schnyder PV GmbH 

Hinwil · Since 2025

Schnyder PV GmbH designs, mounts and installs photovoltaic systems, including commissioning and system monitoring. The company handles project planning, permit applications and grid registrations, and offers consumption optimisation, battery storage and electric vehicle charging solutions using modules, inverters and monitoring systems from various manufacturers.

Electrical Planning & InstallationSolar & Photovoltaics
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sunroots GmbH Logo

sunroots GmbH 

Seuzach · Since 2025

sunroots GmbH designs and installs photovoltaic systems, offering consultation, customized planning and turnkey installation. Services include feasibility assessments, preparation of offers and project management through commissioning.

Solar & Photovoltaics
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greencom gmbh Logo

greencom gmbh 

Weinfelden · Since 2025

Waste Management Industry
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Try Energy SA Logo

Try Energy SA 

Pully · Since 2025

Try Energy SA supplies renewable energy solutions, providing sales, rental and installation of photovoltaic systems, heat pumps, energy storage and electric vehicle charging stations. The company performs energy and feasibility studies and supports financing, permitting, turnkey installation and ongoing maintenance.

Solar & Photovoltaics
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PowerUp AG Logo

PowerUp AG 

Zurich · Since 2025

PowerUp AG operates a network of electric vehicle charging stations and provides a station finder for AC and DC chargers. The service offers semi-rapid charging from 25 kW and fast charging from 100 kW, uses 100% Swiss renewable energy, and includes customer support and contact channels.

Energy SuppliersMobility Services
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Wärmeverbund Stein am Rhein AG Logo

Wärmeverbund Stein am Rhein AG 

Stein Am Rhein · Since 2025

The company's core activity is the sustainable heat supply, in particular to the old town of Stein am Rhein, through the expansion and operation of a district heating network.

Energy Suppliers
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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.