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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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Matching companies

9'016 companies found

Revitalise ta Maison Sàrl Logo

Revitalise ta Maison Sàrl 

Monthey · Since 2022

The core activity of the company 'Revitalise Ta Maison' encompasses three main areas: 1. **Clearance**: Emptying and disposal of unwanted items in houses, apartments, farms, and other premises to create space and enable new use. 2. **Upcycling and Transformation**: Revitalizing and transforming old furniture and items to give them a new life and make them usable for new purposes. 3. **Cleaning and Sanitizing**: Thorough cleaning of premises after clearance to prepare them for new use. The company thus offers a combination of disposal, upcycling, and cleaning to support customers in revitalizing their premises.

Waste Management Industry
View profile5(6)
R. Häsler AG Logo

R. Häsler AG 

Möhlin · Since 2011

The company's core activity is the planning, installation, maintenance and repair of heating and air conditioning systems, including renewable energies such as heat pumps, wood heating systems, oil heating systems, gas heating systems, district heating and photovoltaics. The company also offers services such as heating service, boiler descaling and inspection and maintenance contracts.

Solar & Photovoltaics
View profile4(6)
Righetti Service SA Logo

Righetti Service SA 

Mezzovico · Since 1993

The core activity of Righetti Service SA is the provision of services in the field of sewerage and pipe cleaning, including: Risanamento (pipe cleaning and renovation), Videoispezioni (inspection of pipes and channels using cameras), Prove di tenuta (tightness tests), Vuotature (drainage of channels and pipes), Disostruzioni (removal of blockages), Pulizia canalizzazioni (cleaning of channels and pipes), Revisione cisterne (maintenance and inspection of tanks and containers), and Servizio allagamenti (flood assistance and water damage). The company offers these services 24/7 and has modern equipment and an experienced team.

Waste Management Industry
View profile5(6)
Riwatec AG Logo

Riwatec AG 

Langnau B. Reiden · Since 1999

The core activity of Riwatec AG is the provision of services and products for water supply, particularly in the areas of: * Loss analysis and leak detection in drinking water networks * Repair and maintenance of drinking water pipes and plants * Monitoring and measurement of pressure and flow in drinking water networks * Inspection and testing of drinking water pipes and plants. The company also offers products such as leak detection devices, pressure loggers, camera inspection systems and other specialized equipment for water supply.

Water Supply
View profile4.3(6)
ROMAG aquacare AG Logo

ROMAG aquacare AG 

Düdingen · Since 2001

The company is a leading international player in the development and manufacture of systems for the drinking water and wastewater industry. The core activities include the development and manufacture of products and solutions for the areas of drinking water, stormwater management, object flood protection, micro-pollution, manhole covers and floor doors as well as Techno-SABA.

Water Supply
View profile3.7(6)
RUBAG Heizung - Sanitär AG Logo

RUBAG Heizung - Sanitär AG 

Unterendingen · Since 1969

RUBAG Heizung - Sanitär AG provides heating, sanitary, ventilation and solar installations, as well as maintenance, repairs and boiler servicing. The company plans and executes new-builds and renovations and offers water treatment, rainwater systems and water-softening solutions.

Solar & Photovoltaics
View profile4.8(6)
Rufener Kanalreinigung AG Logo

Rufener Kanalreinigung AG 

Zweisimmen · Since 2010

The core activity of Rufener Kanalreinigung AG encompasses the areas of sewer cleaning, surface cleaning, suction work, manhole recycling, pipe inspection, tightness testing, ventilation cleaning, transport services and winter services.

Waste Management Industry
View profile5(6)
R. Vonplon Söhne AG Haustechnik Logo

R. Vonplon Söhne AG Haustechnik 

Thusis · Since 2000

The core activity of R. Vonplon Söhne AG – Haustechnik is the planning, installation, maintenance and repair of sanitary and heating systems, including consulting and implementation of heating renovations and new installations, heat pumps, wood, solar, oil and gas heating systems in the region of Graubünden.

Solar & Photovoltaics
View profile4.8(6)
Sanitär Gemperle AG Logo

Sanitär Gemperle AG 

Gossau Sg · Since 1981

The core activity of Sanitär Gemperle AG is the planning, execution and maintenance of sanitary installations, including the areas of: Sanitary facilities (e.g. showers, toilet systems), Water treatment (e.g. softening and dosing systems), Solar technology (e.g. solar systems for hot water generation), 24-hour customer service for emergencies and maintenance. The company also offers services such as 3D bathroom planning, installation of dog showers and other specialized solutions.

Plumbing & Building ServicesSheet Metal WorkSolar & Photovoltaics
View profile4.3(6)
Säntis Energie AG Logo

Säntis Energie AG 

Wattwil

The core activity of Säntis Energie AG is energy supply, particularly in the gas sector, including delivery, trading and consulting for heat and energy solutions, as well as the operation and maintenance of energy distribution networks.

Energy Suppliers
View profile4.8(6)
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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.