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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,089 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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IndustryEnergy & Environment
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9'017 companies found

Hazem Autoverwertung GmbH Logo

Hazem Autoverwertung GmbH 

Heldswil · Since 2008

The core activity of Hazem Autoverwertung GmbH is the recycling of vehicles, including the disposal, dismantling and utilization of car parts, as well as the purchase, sale and transportation of vehicles and spare parts.

Waste Management Industry
View profile4.5(4)
H. Botteron Transports SA Logo

H. Botteron Transports SA 

Savagnier · Since 2007

The core activities of Botteron include: 1. Transport: The company provides transportation services, including the provision of vehicles and equipment for the transportation of goods. 2. Recycling: Botteron operates a recycling facility, where materials such as metals, plastics, and other recyclable materials are processed. 3. Demolition: The company offers demolition services, including the destruction and removal of buildings and other structures. 4. Container Rental: Botteron rents containers and skips for the disposal of waste and other materials. 5. Material Recovery: The company offers the reuse of materials, including the processing and sale of recycled materials. Overall, the company focuses on providing services in the areas of waste management, recycling, and transportation.

Waste Management Industry
View profile3.8(4)
HÖCKER Polytechnik AG Logo

HÖCKER Polytechnik AG 

Rothenburg · Since 2009

The company develops and manufactures innovative solutions and products for air purification and environmental technology, particularly indoor air sensors, filter systems and energy management systems, with the goal of supporting customers in sustainable business processes for the recovery of valuable materials and resource conservation.

Sustainability Sector
View profile4.8(4)
Hs. Mühle GmbH Logo

Hs. Mühle GmbH 

Riet (Neftenbach) · Since 1997

The core activity of Hs. Mühle Recycling AG includes the collection, processing and disposal of valuable and waste materials, including: Transport and processing of waste and valuable materials from industry, commerce, municipal collection points and private individuals; Recycling of over 30,000 tons of valuable and waste materials per year; Dismantling and demolition of plants and buildings; Clearance and disposal of heavy loads and emergency situations; Operation of an ECO-CENTER as a collection point for private individuals. The company also offers CO2-balanced transports and supports climate protection projects.

Waste Management Industry
View profile4.8(4)
Hs. Mühle Recycling AG Logo

Hs. Mühle Recycling AG 

Riet (Neftenbach) · Since 2001

Hs. Mühle Recycling AG is a recycling and waste-management company that sorts, processes and recovers recyclable materials and waste. Services include transport and containers, an ECO-CENTER for private customers, dismantling and clearance work, and municipal and industrial waste collection and processing.

Waste Management Industry
View profile4.8(4)
Hufschmid Grüngutverwertung GmbH Logo

Hufschmid Grüngutverwertung GmbH 

Nesselnbach · Since 2001

The company's core activity is the processing of green waste, particularly the composting of organic waste, to produce high-quality products such as compost, garden soil, lawn soil, flower and vegetable soil, bark mulch, fir wood chips and organic animal bedding.

Waste Management Industry
View profile5(4)
Hunziker Landschaftsmanagement Logo

Hunziker Landschaftsmanagement 

Jona · Since 2022

Hunziker Landschaftsmanagement provides specialist support for permitting processes of construction and energy projects, producing site justifications, feasibility analyses and regulatory-compliant documentation for authorities. Its services are aimed at grid operators, power producers and private building clients.

Technical Consulting & EngineeringSustainability Sector
View profile5(4)
Hyko AG Logo

Hyko AG 

Plaffeien · Since 1980

The core activity of Hyko AG includes consulting, planning and execution of projects in the areas of heating, plumbing, water supply and solar, as well as repair services in these areas.

Solar & Photovoltaics
View profile3.8(4)
Indufer AG Logo

Indufer AG 

Schlieren · Since 1972

The core activity of Indufer AG is to provide innovative solutions for water supply, wastewater disposal and energy supply, particularly in the field of supply technology. This includes, among other things, ensuring a reliable and secure water supply, providing solutions for wastewater systems and efficient cooling solutions, as well as the secure and high-performance supply of gas, H2, oil and fuel.

Water Supply
View profile4.5(4)
InfoTools GmbH Logo

InfoTools GmbH 

Walperswil · Since 2007

The company's core activity is consulting and supporting the renovation and construction of residential buildings, particularly in the areas of energy efficiency and sustainable living, including the installation of photovoltaic systems.

Solar & Photovoltaics
View profile5(4)
InnoRecycling AG Logo

InnoRecycling AG 

Winterthur · Since 2021

InnoRecycling AG serves as a central contact for businesses for the acceptance, inspection and brokerage of various plastic wastes and is involved in the "Bring Plastic Back" (Sammelsack) system for collecting household plastics.

Sustainability Sector
View profile4(4)
Jean Egloff AG Logo

Jean Egloff AG 

Bauma · Since 1988

The core activity of Jean Egloff AG is the planning, implementation and maintenance of building technology systems, particularly in the areas of plumbing, heating, ventilation and solar energy. The company offers comprehensive services, ranging from the installation and maintenance of heating and plumbing systems to the planning and implementation of solar systems, as well as the execution of blacksmithing and agricultural machinery work.

Solar & Photovoltaics
View profile4(4)
J. Fretz GmbH, Spenglerei/Bedachungen/Solaranlagen Logo

J. Fretz GmbH, Spenglerei/Bedachungen/Solaranlagen 

Klosters Dorf · Since 2016

The core activity of J. Fretz GmbH is the execution of roofing work, particularly in the areas of: copper roofing, roof renovations, service work, photovoltaic work, slate roofing, and snow removal. The company thus offers a wide range of services in the field of roof and building maintenance.

RoofingSheet Metal WorkSolar & Photovoltaics
View profile5(4)
JSK Marketing GmbH Logo

JSK Marketing GmbH 

Laupersdorf · Since 2020

The core activity of JSK Marketing GmbH is the development, manufacture and distribution of products for health, well-being and sustainability, particularly in the areas of air purification, floor cleaning and sleep comfort. The company offers a wide range of products, including air purifiers, vacuum cleaners, floor cleaning machines and accessories, positioning itself as an expert in healthy living conditions.

Sustainability Sector
View profile4.3(4)
Jud Haustechnik Sanitär Lüftung Solar Logo

Jud Haustechnik Sanitär Lüftung Solar 

Amden · Since 2021

The core activity of Jud Haustechnik is the execution and planning of sanitary work, solar and ventilation services in the areas of new construction, renovation as well as service and repair work.

Solar & Photovoltaics
View profile5(4)
Junod Wasser + Wärme AG Logo

Junod Wasser + Wärme AG 

Rossrüti · Since 2002

The core activity of Junod Wasser + Wärme AG is the planning, consulting and installation of solar systems, heating systems and sanitary facilities, including energy consulting and planning.

Solar & Photovoltaics
View profile4(4)
KANALPOWER GmbH Logo

KANALPOWER GmbH 

Zurich · Since 2018

The core activity of Kanalpower GmbH is the provision of services in the field of drainage and ventilation technology, particularly in the Zurich region. This includes: sewer cleaning and inspection, sewer rehabilitation and investigation with TV recordings, pipe rehabilitation and cleaning, and a 24-hour emergency service for wastewater and ventilation systems. The company offers a complete service around wastewater systems, including the analysis and rehabilitation of damage, as well as the creation of offers and consulting.

Waste Management Industry
View profile5(4)
KANX Sàrl Logo

KANX Sàrl 

Geneva · Since 2015

The core activity of KANX is the planning, implementation and maintenance of photovoltaic systems for private and commercial customers. This includes the installation of solar panels on roofs, the construction of autonomous solar systems for remote locations, the selection and installation of storage batteries, as well as the planning and implementation of solutions for the storage and use of renewable energy, such as powering buildings with solar power during power outages or charging electric vehicles.

Solar & Photovoltaics
View profile5(4)
Kreutzinger & Stahel AG Logo

Kreutzinger & Stahel AG 

Mönchaltorf · Since 1987

The core activity of Kreutzinger & Stahel AG is water technology and decalcification, particularly in water treatment and cleaning of water-carrying systems. This includes services such as: decalcification of boilers, pipes and plate heat exchangers, dosing systems and water softening systems, corrosion protection and sacrificial anode systems, water analysis and flushing, and maintenance and servicing of systems. The company also offers products such as Judo products and cooling and heating water systems.

Water SupplyChemical Industry
View profile5(4)
KW GmbH Kurt Windlin Logo

KW GmbH Kurt Windlin 

Giswil · Since 2008

The core activity of KW GmbH Kurt Windlin is the planning, consulting and implementation of solutions for heating systems, sanitary facilities and solar systems. Specifically, this includes the installation and maintenance of various types of heating systems (air/water heat pumps, ground source heat pumps, groundwater heat pumps, log wood heating systems), sanitary technology (water and pipe construction) and solar systems (flat collectors, vacuum tube collectors, BackBox drainage systems).

Solar & Photovoltaics
View profile4(4)
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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.