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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,378 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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8'993 companies found

Kanal-Engel AG Logo

Kanal-Engel AG 

Hochdorf · Since 2021

The core activity of Kanal-Engel AG is the provision of services in the field of canal, suction and surface services, particularly: canal cleaning, suction work, surface cleaning, canal TV (location detection), tightness testing, 24-hour emergency service, and service subscription. The company offers these services to various customer groups, including private individuals and homeowners, property management companies, commercial and industrial businesses, as well as the public sector.

Waste Management Industry
View profile5(10)
Kanalmeister AG Logo

Kanalmeister AG 

Worben · Since 2006

Kanalmeister AG plans and carries out sewer cleaning; the company flushes, vacuums, unblocks, mills, inspects and rehabilitates sewer and pipe systems for municipal, industrial and private clients.

Waste Management Industry
View profile3.9(10)
Kurt Lüscher AG Logo

Kurt Lüscher AG 

Buchs Ag · Since 1989

The company's core activity is providing services in the field of electrical engineering and energy, particularly in the areas of installation, maintenance and consulting. The company offers solutions to meet its customers' needs in terms of energy efficiency, sustainability and investment protection.

Solar & Photovoltaics
View profile4.4(10)
Lampert + Walker AG Logo

Lampert + Walker AG 

Jona · Since 1991

Lampert + Walker AG is a service company specializing in the planning, execution and maintenance of heating and cooling systems in buildings. The core activities include consulting, planning and execution of projects in the field of building technology, particularly in the areas of heat pumps, natural gas/biogas, wood heating, solar systems and cooling.

Solar & Photovoltaics
View profile4.8(10)
LidER-Concept Sàrl Logo

LidER-Concept Sàrl 

Rances · Since 2007

LidER-Concept Sàrl provides planning, supply and installation of renewable energy systems, focusing on photovoltaic, hybrid, aerovoltaic and solar thermal solutions. Its services also cover heat pumps and wood-fired boilers, energy storage and e-mobility solutions, together with project management, financing support and maintenance.

Energy Suppliers
View profile4.2(10)
LidER Trading Sàrl Logo

LidER Trading Sàrl 

Rances · Since 2017

LidER Trading Sàrl is a renewable energy installer that supplies and installs photovoltaic (including hybrid and aerovoltaic) and thermal solar systems, heat pumps and wood-fired boilers. It also provides project management, financing, energy-efficiency assessments, energy storage, e-mobility solutions and service/maintenance.

Energy Suppliers
View profile4.2(10)
Lingg Haustechnik AG Logo

Lingg Haustechnik AG 

Wolhusen · Since 2012

The core activity of Lingg Haustechnik AG is the planning, installation, maintenance and repair of sanitary systems, heating systems, solar systems, heat pumps and alternative energy systems for new buildings, conversions and renovations, including bathroom renovations, heating system upgrades and sanitary and heating repairs.

Solar & Photovoltaics
View profile4.6(10)
Livuss GmbH Logo

Livuss GmbH 

Safenwil · Since 2016

The company's core activity is the purchase, processing and environmentally friendly utilization of scrap metal, including various metal types such as copper, aluminum, brass, zinc, lead and others. The company offers a wide range of services, including the collection of scrap metal, the processing of metal waste and the environmentally conscious disposal of scrap. The goal is to protect the environment by recycling metals and reintroducing them into the production cycle.

Waste Management Industry
View profile3(10)
Ludwig Haustechnik AG Logo

Ludwig Haustechnik AG 

Wohlen Ag · Since 2014

The core activity of Ludwig Haustechnik AG is the planning, installation, repair and maintenance of sanitary facilities and heating systems, particularly in the area of renovations, refurbishments and new constructions of hairdressing salons, shopping centers, fitness centers, restaurants, private and commercial buildings.

Solar & Photovoltaics
View profile4.5(10)
Michel Rime SA Logo

Michel Rime SA 

Echallens · Since 1995

Michel Rime SA is a service company specializing in the planning, installation, and maintenance of building technology solutions. The core activities include: air conditioning and ventilation systems, sanitary installations for kitchen and bathroom, solar systems and renewable energies, maintenance and repair of building technology systems, and consulting and planning for energy-efficient buildings. The company also offers emergency services and 24/7 support, and has its own training facility for employees.

Solar & Photovoltaics
View profile4.6(10)
Minder Haustechnik GmbH Logo

Minder Haustechnik GmbH 

Lausen · Since 2007

Minder Haustechnik GmbH primarily focuses on the installation, assembly, repair, and maintenance of sanitary installations, heating systems, and swimming pools. Specific activities include: installation and assembly of sanitary installations, service and repair work on sanitary installations, installation, service, and repair of heating systems, construction and maintenance of swimming pools, and installation and service of solar systems. The company thus offers comprehensive services in the field of building technology and swimming pool technology.

Solar & Photovoltaics
View profile4.6(10)
Mischler Haustechnik AG Logo

Mischler Haustechnik AG 

Hittnau · Since 2007

The core activity of Mischler Haustechnik AG encompasses the planning, installation, maintenance and repair of sanitary, heating, solar and ventilation systems for private and commercial use. This also includes services such as boiler descaling, water treatment, rainwater harvesting, dehumidification and dryer systems, as well as the installation of solar systems and biotopes.

Solar & Photovoltaics
View profile4.4(10)
MOBILITRI SA Logo

MOBILITRI SA 

Satigny · Since 2020

Waste Management Industry
View profile2.8(10)
NAG Solar GmbH Logo

NAG Solar GmbH 

Schattdorf · Since 2013

NAG Solar GmbH installs and operates photovoltaic systems, delivering solutions for decentralized solar power generation; the website states the firm mounted a photovoltaic installation to supply its own workshop and describes related installation and service activities.

Solar & Photovoltaics
View profile4.8(10)
Niederhäuser AG Logo

Niederhäuser AG 

Rothenburg · Since 1974

The core activity of Niederhäuser is the development, production and marketing of animal feed additives, particularly based on herbs and Effective Microorganisms (EM).

Sustainability Sector
View profile4.5(10)
novaline ag Logo

novaline ag 

Frick · Since 2018

The core activity of Novaline AG is sewer rehabilitation, cleaning and inspection, including tightness tests, milling work and sewer robot deployments. The company offers customized solutions for the sustainable maintenance of sewer systems, using modern, trenchless methods.

Waste Management Industry
View profile4.9(10)
RESiQ AG Logo

RESiQ AG 

Burgdorf · Since 2011

RESiQ AG designs, plans and installs photovoltaic systems and provides storage solutions, energy management, charging stations and building-technology services. The company also offers energy consulting for new builds and renovations, system monitoring and maintenance services.

Solar & Photovoltaics
View profile4.6(10)
Roth Elektro Kerzers AG Logo

Roth Elektro Kerzers AG 

Kerzers · Since 2022

The core activity of Roth Elektro Kerzers AG is the provision of services and solutions in the field of electrical engineering, particularly in the following areas: electrical installations for new, renovation and industrial buildings, photovoltaic systems, telematics, smart home solutions and lighting. The company offers these services to customers in the region, emphasizing personal contact, flexibility and reliability.

Solar & Photovoltaics
View profile4.9(10)
rundumgesund GmbH Logo

rundumgesund GmbH 

Wasen Im Emmental · Since 2014

The core activity of the company "rundumgesund GmbH" is the development, manufacture and distribution of products and solutions for holistic water treatment, electrosmog neutralization and regeneration. The company offers a wide range of products, including water filters, treatment and energization systems, electrosmog neutralization devices, sleep optimization solutions and bio-light products. The goal is to help customers lead a healthy and balanced life by providing access to pure, vitalized and cell-friendly drinking water, an electrosmog-free environment and effective regeneration options.

Sustainability Sector
View profile5(10)
RUTZ Gruppe AG Logo

RUTZ Gruppe AG 

Rümlang · Since 2015

The core activity of RUTZ Gruppe AG encompasses the development, manufacture and installation of: solar systems, charging solutions for e-mobility, and chimney systems for fossil fuels. The company thus provides solutions for sustainable energy supply and electrification, as well as for traditional energy generation using fossil fuels.

Solar & Photovoltaics
View profile5(10)
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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.