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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,219 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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IndustryEnergy & Environment
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Matching companies

9'014 companies found

Thermo-Sanitär AG Logo

Thermo-Sanitär AG 

Dottikon · Since 2020

The core activity of Thermo-Sanitär AG includes the planning, installation, repair and maintenance of sanitary and heating systems, including the use of renewable energies such as solar thermal energy and heat pumps. This also includes the installation and maintenance of ventilation systems, water softening systems and other sanitary facilities. The company also offers consulting and planning services for bathroom renovations and refurbishments, as well as the installation of washing machines and dryers.

Solar & Photovoltaics
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THOMA Entsorgung + Recycling AG Logo

THOMA Entsorgung + Recycling AG 

Appenzell · Since 2006

The core activity of Thoma Entsorgung is the disposal and collection of waste, including household waste, glass, green waste and paper. Additionally, the company offers services such as apartment clearances, the sale of waste containers, mulch transport and the operation of a collection point for commercial waste.

Waste Management Industry
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Thoma Heizungen AG Logo

Thoma Heizungen AG 

Adetswil · Since 1994

The core activity of Thoma Heizungen AG is the planning, installation, maintenance and repair of heating systems, including oil, gas, wood heating systems, heat pumps, solar systems and underfloor heating, as well as the execution of renovations and service work in the field of building technology.

Solar & Photovoltaics
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Thomas Bürki GmbH Logo

Thomas Bürki GmbH 

Benglen · Since 1997

The core activity of Thomas Bürki GmbH is the consulting and implementation of projects in the field of energy efficiency, climate protection and environmental protection for industrial companies and political institutions. This includes the development of energy concepts, process analyses, climate protection projects, environmental protection measures and the accompaniment of project implementation. Additionally, the company offers policy consulting and support in the development of laws and implementation programs.

Technical Consulting & EngineeringSustainability Sector
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Thomas Eiche GmbH Logo

Thomas Eiche GmbH 

Pratteln · Since 2014

The company provides consulting and services in the field of occupational environmental protection, risk management, and energy efficiency. The core activities include the development and implementation of environmental management systems, the optimization of energy consumption and efficiency, the identification and minimization of environmental and health risks, as well as support in complying with legal requirements and achieving sustainability goals.

Sustainability Sector
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Thomas Fässler Immobilien AG Logo

Thomas Fässler Immobilien AG 

Unteriberg · Since 2018

Solar & Photovoltaics
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Thommen AG Bern Logo

Thommen AG Bern 

Bern · Since 1985

Thommen AG Bern provides waste management and recycling services, handling ferrous scrap, non‑ferrous metals, electronic waste, end‑of‑life vehicles and batteries. The site also offers full disposal services, logistics and container solutions, pollutant and asbestos remediation, and operates a recycling yard.

Waste Management Industry
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Thommen AG Amriswil & Staad Logo

Thommen AG Amriswil & Staad 

Amriswil · Since 2009

Thommen AG Amriswil & Staad provides recycling and waste-management services, including processing of ferrous scrap, non‑ferrous metals, electronic waste and batteries, as well as vehicle recycling and construction-waste handling. Services also cover full disposal solutions, logistics and container services and recycling yard operations.

Waste Management Industry
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Thommen AG Logo

Thommen AG 

Kaiseraugst · Since 1979

Thommen AG is a recycling and waste management company offering recycling of ferrous and non‑ferrous scrap, electronic waste and end‑of‑life vehicles, as well as customised recycling and disposal services for industry, commerce, municipalities and private customers.

Waste Management Industry
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Thommen AG Köniz & Givisiez Logo

Thommen AG Köniz & Givisiez 

Thörishaus · Since 1929

Thommen AG Köniz & Givisiez provides recycling and waste-management services, processing ferrous scrap, non-ferrous metals, electronic waste and batteries. Its offerings include car recycling, comprehensive disposal, logistics and container services, and operations of a recycling yard.

Waste Management Industry
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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.