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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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9'003 companies found

Lopatex AG Logo

Lopatex AG 

Dällikon · Since 1956

Lopatex AG processes paper and cardboard, glass, green waste, plastics, metals, bulky waste, electronic scrap and other recyclables.

Waste Management Industry
View profile3.8(20)
Lustenberger Menziken GmbH Logo

Lustenberger Menziken GmbH 

Menziken · Since 1998

Lustenberger Menziken GmbH is a waste management and recycling company specializing in the professional disposal and utilization of waste. The core activities include: waste disposal services, including container ordering and delivery; operation of a recycling center; industrial dismantling; transportation services; and demolition and disposal work. The company places a particular emphasis on sustainable and environmentally friendly practices, striving to recycle and utilize waste to the greatest extent possible.

Waste Management IndustryMetal Industry
View profile4.6(20)
MegaWatt Solar AG Logo

MegaWatt Solar AG 

Baar · Since 2023

The core activity of MegaWatt Solar AG is the distribution, planning and implementation of photovoltaic systems in Switzerland.

Solar & Photovoltaics
View profile5(20)
Nuances Spécial Car SA Logo

Nuances Spécial Car SA 

Le Grand-Saconnex · Since 2024

The company Newash offers an ecological car washing service for private individuals and companies in Geneva.

Sustainability Sector
View profile5(20)
Peter AG Kanalreinigung Logo

Peter AG Kanalreinigung 

Neuenkirch · Since 1994

Peter AG Kanalreinigung is a provider of sewer and drain cleaning services. Its services include flushing and suction work, internal drain and stack cleaning, camera inspections (Kanal‑TV), mobile and stationary sludge treatment, and handling of oil and grease separators.

Waste Management Industry
View profile4.2(20)
ProRheno AG Logo

ProRheno AG 

Basel · Since 1980

The core activity of ProRheno AG is the treatment of municipal and industrial wastewater, as well as the treatment and disposal of sewage sludge. This also includes the incineration of sewage sludge and the feeding of surplus heat into the district heating network.

Waste Management Industry
View profile4.8(20)
Steinmann Heizung GmbH Logo

Steinmann Heizung GmbH 

Schwanden Gl · Since 1999

The Steinmann Heizung GmbH company offers services in the areas of heating, building technology, industry and mobile heating centers. Specifically, this includes consulting, planning and installation of heating systems, sanitary installations, industrial heating systems and mobile heating centers. In addition, the company offers a repair service for these areas.

Solar & Photovoltaics
View profile4.9(20)
Stiftung myclimate - The Climate Protection Partnership Logo

Stiftung myclimate - The Climate Protection Partnership 

Zurich · Since 2003

The company's core activity is advising and supporting companies and individuals in reducing their CO₂ footprint and developing climate strategies. The company offers services such as CO₂ balancing, project management, customer consulting and support, as well as education and consulting on sustainable corporate management and corporate social responsibility. It also supports the development of science-based targets and provides solutions for climate protection.

Sustainability Sector
View profile4(20)
Sulmoni Daniele SA Logo

Sulmoni Daniele SA 

Mendrisio · Since 1988

The core activity of Sulmoni Daniele SA is the planning, installation, and maintenance of electrical, telematic, and photovoltaic systems for residential and commercial properties. This includes, in particular: the installation and maintenance of electrical systems, the planning and installation of photovoltaic systems, the installation of video surveillance systems, the performance of safety checks (RaSi) and the issuance of corresponding certificates, and consulting and planning of energy-efficient solutions. The company thus offers comprehensive services in the field of electrical engineering and renewable energy.

Electrical Planning & InstallationSolar & Photovoltaics
View profile4.2(20)
TAMAR SOLAR SA Logo

TAMAR SOLAR SA 

Yverdon-Les-Bains · Since 2023

TAMAR SOLAR SA is a company specializing in photovoltaic solutions and provides turnkey solar projects. Its services include design and installation of photovoltaic systems, battery storage, EV charging stations, heat pumps, contracting and maintenance, and it handles subsidy applications and system monitoring.

Solar & Photovoltaics
View profile5(20)
Wärmebau AG Logo

Wärmebau AG 

Zurich · Since 1972

The core activity of Wärmebau AG is the planning, installation, repair and maintenance of heating, plumbing, air conditioning and ventilation systems. The company also offers individual consulting and customer services.

Solar & Photovoltaics
View profile3.7(20)
A + B Flachdach AG Logo

A + B Flachdach AG 

Reinach Bl · Since 2005

The core activity of A+B Flachdach AG is the provision of services in the field of flat roofs and sheet metal work. Specifically, this includes the planning, execution and maintenance of flat roofs, including the use of various materials such as bituminous roofing membranes and plastic films. In addition, the company offers pure sheet metal work such as pitched roof sheet metal work, dormer windows, standing seam roofs and metal roofing. Additional services include pigeon protection, lightning protection systems and the assessment of roofs for photovoltaic systems.

RoofingSheet Metal WorkSolar & Photovoltaics
View profile4.2(19)
ackermann AG Logo

ackermann AG 

Düdingen · Since 1975

ackermann AG is a specialist contractor for building envelopes, building services engineering and solar systems, providing planning, installation and refurbishment services for roofing, façades, plumbing and heating, as well as photovoltaic and solar-thermal systems.

Sheet Metal WorkSolar & Photovoltaics
View profile4.5(19)
A. Ehrler AG Logo

A. Ehrler AG 

Küssnacht Am Rigi · Since 1993

The core activity of A. Ehrler AG is the provision of transport services, waste disposal, and gravel deliveries. Specifically, the company offers the following services: Transport services, Skip rental (rental of skips for waste disposal), Waste disposal facility (acceptance point for waste), and Landfill (disposal of excavated material and other materials). The company positions itself as a partner for waste disposal, transport, and gravel deliveries in Central Switzerland.

Waste Management Industry
View profile4.8(19)
and nice trading GmbH Logo

and nice trading GmbH 

Bonstetten · Since 2023

The core activity of KITO is the development, marketing and sale of electrified retro scooters, designed as an environmentally friendly and stylish alternative for urban mobility.

Sustainability Sector
View profile5(19)
Arisol AG Logo

Arisol AG 

Beinwil Am See · Since 2024

The core activity of Arisol AG is the planning, installation, maintenance and repair of photovoltaic systems (solar systems) for private and commercial customers. The company offers individual solar consulting, tailored solutions and comprehensive service for energy supply through solar energy.

Solar & Photovoltaics
View profile5(19)
BAILLOD SA Logo

BAILLOD SA 

Verbier · Since 1981

BAILLOD SA provides electrical installations, renovations and conversions, and sells, installs and repairs large household appliances. The company also installs solar panels, supplies and fits TV, audio and internet equipment, and handles industrial refrigeration, air conditioning and emergency repair services.

Solar & Photovoltaics
View profile4.7(19)
Baumann Haustechnik GmbH Logo

Baumann Haustechnik GmbH 

Fulenbach · Since 2008

The core activity of Baumann Haustechnik GmbH encompasses the planning, installation and maintenance of building technology systems, including heating, plumbing, metalwork, electrical installations, photovoltaics, ventilation systems, central vacuum cleaners and chimney construction. Additionally, the company operates a bathroom exhibition (BadExpo) and thus also offers services in the area of bathroom planning and equipment.

Solar & Photovoltaics
View profile4.4(19)
BIO3G, Merdrignac (France), succursale de Cortébert Logo

BIO3G, Merdrignac (France), succursale de Cortébert 

Cortébert · Since 2005

The company BIO3G develops, produces and markets biostimulant solutions for agriculture, aiming to promote natural processes in soil, plants and animals, rather than using chemical agents. The company's core activity includes research, development and manufacturing of biostimulant products intended to improve soil fertility, plant development and animal health.

Sustainability Sector
View profile4.6(19)
Brunner & Imboden AG Logo

Brunner & Imboden AG 

Gwatt (Thun) · Since 1989

Brunner + Imboden AG is a leading company in the fields of high and low voltage installations, telecommunications solutions, solar systems and alternative mobility. The core activities include: electrical installations (high and low voltage), telecommunications solutions, solar energy (photovoltaics), and alternative mobility. The company also offers services such as consulting, planning, design, installation, service, maintenance and upkeep in these areas.

Solar & Photovoltaics
View profile4.8(19)
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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.