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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

Bläuer Conservation Science Sàrl Logo

Bläuer Conservation Science Sàrl 

Fribourg · Since 2007

The core activity of Bläuer Conservation Science Sàrl is the preservation and conservation of cultural assets, particularly monuments and historic buildings. The company provides expert advice, expert opinions, condition analyses, material analysis, maintenance plans and research services to support the preservation and conservation of cultural assets.

Sustainability Sector
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Blickwerk GmbH Logo

Blickwerk GmbH 

Oberuzwil · Since 2024

The Blickwerk GmbH company primarily focuses on craftsmanship and design, particularly on upcycling and the utilization of old or reusable materials. They provide a platform for creative individuals to exhibit and sell their works. The core activities include: Craftsmanship: Production of unique items through manual techniques Design: Conceptualization and implementation of creative ideas Upcycling: Transformation of old or reusable materials into new products Community workspace: Platform for creative individuals to exhibit and sell their works The company concentrates on creating unique products through manual techniques and promoting creativity and sustainability.

Sustainability Sector
View profile5(1)
BLUESOL GmbH Logo

BLUESOL GmbH 

Felsberg · Since 2012

The core activity of BLUESOL GmbH is the development and marketing of layered storage technology, particularly in the field of solar energy, specifically hybrid collectors.

Solar & Photovoltaics
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BORTIS Dächer und Fassaden Logo

BORTIS Dächer und Fassaden 

Baar · Since 1997

The company Bortis Dächer und Fassaden offers services in the field of roof and facade work. The core activities include: planning, coordination and execution of pitched roof, flat roof and facade projects; renovation and refurbishment of existing roofs and facades; installation of roof windows and photovoltaic systems; maintenance and repair of roofs; design and execution of roof terraces and facades. The company thus provides comprehensive solutions for the design, renovation and maintenance of roofs and facades.

Solar & Photovoltaics
View profile5(1)
Boss Elektro GmbH Logo

Boss Elektro GmbH 

Rüedisbach · Since 2022

The core activity of Boss Elektro GmbH is the planning and implementation of electrical installations, including the implementation of modern and future-proof solutions in the electrical sector.

Electrical Planning & InstallationSolar & Photovoltaics
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Britt Haustechnik AG Logo

Britt Haustechnik AG 

Ebnat-Kappel · Since 2012

The core activity of Britt Haustechnik AG is the provision of services in the field of building technology, particularly in the areas of competence of sanitary, heating, plumbing and solar technology/PV.

Sheet Metal WorkSolar & Photovoltaics
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Caminando con Amor, Denise Brugger und Allan Bolaños Quiros Logo

Caminando con Amor, Denise Brugger und Allan Bolaños Quiros 

Allschwil · Since 2016

The core activity of Caminando con Amor is the organization and implementation of round trips and volunteer work in Costa Rica, with a focus on nature travel, bird watching and projects for the protection of the seas and marine life. The company offers individual and personal support for participants in small group tours or as self-drivers and shows Costa Rica off the beaten path of mass tourism.

Sustainability Sector
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cewas Logo

cewas 

Willisau · Since 2016

The core activity of Cewas is to promote water entrepreneurship and develop solutions for sustainable water use. This includes supporting start-ups and small businesses in the water sector, providing knowledge and training, promoting investments in the water sector, and developing ecosystems that enable sustainable water use.

Sustainability Sector
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Ch. Bieri Elektro GmbH Logo

Ch. Bieri Elektro GmbH 

Schachen Lu · Since 2004

The core activity of Bieri-Elektro GmbH is the provision of electrical services, including: installation of electrical systems for new and renovation projects, repairs and maintenance of electrical appliances and systems, rental and installation of electrical equipment for events and temporary installations, installation of photovoltaic systems and LED solutions, electrical inspections and safety consulting, installation of lighting and fire alarm systems, and installation of intercom and video surveillance systems. The company thus offers a wide range of electrical services for private and business customers.

Solar & Photovoltaics
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Christophe Etienne Chauffage - Sanitaire Logo

Christophe Etienne Chauffage - Sanitaire 

Le Châtelard-Près-Romont · Since 2016

Christophe Etienne Chauffage - Sanitaire provides planning, installation and maintenance services for heating, sanitary and solar thermal systems. Offerings include air‑to‑water and geothermal heat pumps, oil/pellet/wood boilers, solar thermal collectors, sanitary installations and bathroom renovations, together with repairs, descaling and water‑treatment services.

Plumbing & Building ServicesSolar & Photovoltaics
View profile4(1)
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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.