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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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9'016 companies found

SORTAG AG Entsorgungscenter Bigenthal Logo

SORTAG AG Entsorgungscenter Bigenthal 

Bigenthal · Since 1989

The core activity of Sortag AG is the professional disposal and recycling of various materials such as metals, glass, plastics, appliances, wood, construction waste, electrical components and liquids. This also includes the dismantling of buildings, steel structures and tanks, as well as earthworks and special transports. The company also offers a comprehensive service for sorting and subsequent processing and disposal of waste, with around 75% of the received waste being returned to the material cycle.

Waste Management Industry
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SORSAG Sortiergesellschaft AG Logo

SORSAG Sortiergesellschaft AG 

Saanen · Since 1993

SORSAG Sortiergesellschaft AG operates a sorting facility and provides waste disposal and material recovery services for construction and green waste. Its services include sorting, composting and sale of compost substrate, container and weighing services, the SorSACK event waste system, machinery rental with operator, and consulting on waste management.

Waste Management Industry
View profile4.5(2)
SPconnect Sàrl Logo

SPconnect Sàrl 

Renens Vd · Since 2020

The core activity of SPconnect Sàrl is the provision of services in the field of electrical engineering, particularly in the following areas: new construction and renovation projects, control and installation of electrical systems (OIBT), installation of low-voltage systems, installation of charging stations for electric vehicles, installation of photovoltaic systems and renewable energy systems, repair and maintenance services for electrical systems, and technical consulting and planning of electrical systems. The company thus offers a comprehensive range of services in the field of electrical engineering and positions itself as a competent partner for customers who want to plan, install, maintain or repair electrical systems.

Solar & Photovoltaics
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SRY Consulting, S. Ryckeboer Logo

SRY Consulting, S. Ryckeboer 

Geneva · Since 2014

The core activity of SRY Consulting is to advise and support organizations, particularly small and medium-sized enterprises (SMEs), in implementing measures in the field of corporate social responsibility (CSR) and sustainable development. This includes supporting the development of projects with positive impacts on the environment, society and the economy, as well as accompanying the certification of standards such as BCorp, ISO 9001 and EduQua 2021. In addition, SRY Consulting also offers services in the field of energy efficiency and real estate renovation.

Sustainability Sector
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Stieger Bedachungen & Spenglerei GmbH Logo

Stieger Bedachungen & Spenglerei GmbH 

Cunter · Since 2017

The core activity of Stieger Bedachungen und Spenglerei is the execution of works in the field of roofing and sheet metal work, including all types of roofing (natural stone, slate, tiles, metal, etc.), sheet metal work (well-trained personnel, solid craftsmanship and modern machinery), photovoltaic systems, roof windows, chimney hoods, chimney cladding and other related services.

RoofingSheet Metal WorkSolar & Photovoltaics
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STOECKLER Group AG Logo

STOECKLER Group AG 

Ottoberg · Since 1980

The core activity of STOECKLER Group AG is the development, manufacture and marketing of products for natural gardening, particularly for composting and the use of compost in gardens.

Sustainability Sector
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Stucki Spengler, Sanitär, Solar Logo

Stucki Spengler, Sanitär, Solar 

Dürnten · Since 2017

The core activity of Stucki Spengler I Sanitär I Solar is the planning, installation and maintenance of sanitary and heating systems, including renewable energies such as solar systems, heat pumps and wood heating systems. In addition, the company also offers services in the fields of bathroom architecture, interior architecture and building technology.

Solar & Photovoltaics
View profile3(2)
Sunside Energy AG Logo

Sunside Energy AG 

Lohn-Ammannsegg · Since 2021

Sunside Energy AG designs, installs and maintains photovoltaic systems and provides energy storage and e-mobility charging solutions.

Solar & Photovoltaics
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Suntec Energy GmbH Logo

Suntec Energy GmbH 

Zurich · Since 2024

Suntec Energy GmbH provides turnkey photovoltaic systems and related services for residential and commercial customers. Services include consultation, technical planning and project engineering, installation and commissioning, battery and energy-management solutions, EV charging integration, and ongoing maintenance and monitoring.

Solar & Photovoltaics
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Synergie Bau GmbH Logo

Synergie Bau GmbH 

Bubendorf · Since 2021

The core activity of Synergie Bau GmbH is the construction and planning of solar systems, in particular photovoltaic systems (PV systems), as well as the provision of services in the field of renewable energy. The company also offers other systems, such as regenerative heating systems, electric charging stations and wind turbines, and supports customers in the planning, installation and management of projects in the field of renewable energy.

Solar & Photovoltaics
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Technobat Les Ponts-de-Martel Sàrl Logo

Technobat Les Ponts-de-Martel Sàrl 

Les Ponts-De-Martel · Since 1998

The core activity of Technobat Les Ponts-de-Martel Sàrl encompasses the installation, maintenance, and repair of various technical facilities and systems in buildings, particularly: heating systems, sanitary installations, solar energy and heat pump systems, roofing and roof repair work, and sheet metal work. The company offers these services to private and commercial customers in the canton of Neuchâtel and throughout Western Switzerland.

RoofingSolar & Photovoltaics
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Teppichreinigung Maya Wegmüller Logo

Teppichreinigung Maya Wegmüller 

Kirchberg Sg · Since 1998

The company's core activity is the ecological cleaning and maintenance of carpets, particularly silk, Persian, Tibetan and Oriental carpets as well as stretch carpets, using biodegradable and environmentally friendly cleaning agents.

Sustainability Sector
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TerraSol AG Logo

TerraSol AG 

Endingen · Since 2018

TerraSol AG is a provider of services and products in the field of renewable energies, particularly in the areas of solar energy and heat pumps. The core activities include consulting, planning, execution and maintenance of solar energy and heat pump systems, as well as the distribution of heat storage systems. The company also offers mediation and service services.

Solar & Photovoltaics
View profile4.5(2)
The Cultured Hub AG Logo

The Cultured Hub AG 

Kemptthal · Since 2022

The core activity of 'The Cultured Hub' is to support and accelerate start-ups and companies in the field of food cultivation, particularly cultured meat, fish, seafood, and fermentation products. To this end, the company offers scalable production facilities, technologies, expertise, and networks to promote the development and market launch of these products. The company acts as an 'Ecosystem Enabler', enabling start-ups to scale from laboratory to industrial production without having to invest in their own pilot facilities.

Sustainability Sector
View profile4.5(2)
THUREC GmbH Logo

THUREC GmbH 

Affeltrangen · Since 2014

The core activity of THUREC GmbH is the disposal and processing of waste and secondary raw materials of all kinds, including recycling and utilization of materials. The company offers its services to both private customers and commercial and industrial customers, encompassing activities such as acceptance, sorting, disposal and processing of waste, as well as the sale of high-quality recycling products.

Waste Management Industry
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trafopower AG Logo

trafopower AG 

Schönenwerd · Since 2004

The core activity of Trafopower AG encompasses the areas of transformers and network services. Specifically, the company offers the following services: Maintenance and servicing of transformers, including oil analysis, oil regeneration, oil preparation and oil drying; Transportation and disposal of transformers; Network services, including planning, construction and maintenance of transformer stations, distribution cabinets and cable systems; Sales and delivery of transformers, spare parts and accessories; Consulting and service for energy systems and networks. The company positions itself as a specialist for transformers and energy systems and offers its services throughout Switzerland and abroad.

Energy Suppliers
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TRIENERGY Solutions AG Logo

TRIENERGY Solutions AG 

Olten · Since 2023

The core activity of TRIENERGY Solutions AG is the wholesale trade of products and solutions for photovoltaic systems, including solar modules, inverters, mounting systems, PV storage systems and accessories. The company also offers energy management solutions and consulting services.

Solar & Photovoltaics
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Tschanz Haustechnik GmbH Logo

Tschanz Haustechnik GmbH 

Konolfingen · Since 1999

The core activity of TSCHANZ Haustechnik GmbH is the planning, installation and maintenance of building technology systems, particularly in the areas of heating, plumbing and solar energy. The company provides consulting and services for the installation and maintenance of heating systems, sanitary systems, drinking water systems and solar systems.

Solar & Photovoltaics
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UDM-regreen gmbh Logo

UDM-regreen gmbh 

Rheinklingen · Since 2011

The core activity of UDM regreen GmbH is the composting and utilization of green waste, including the collection, shredding and processing of biomass. The company also offers services such as mulching, site management and green waste collection.

Waste Management Industry
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ULRICH KOCH TRANSPORTE GmbH Logo

ULRICH KOCH TRANSPORTE GmbH 

Ramosch · Since 2008

The core activity of Ulrich Koch Transporte GmbH encompasses the provision of transportation and disposal services, particularly: bulk goods transportation, disposal of construction waste, winter services (snow removal), muckaway services, and street and underground garage cleaning. The company primarily offers these services in the Engadin region and the canton of Grisons.

Waste Management Industry
View profile5(2)
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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.