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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

Marquart Dächer Fassadenbau AG Logo

Marquart Dächer Fassadenbau AG 

Tscherlach · Since 2008

The core activity of Marquart Dächer Fassadenbau AG is the provision of services in the field of roofing craftsmanship, including: roof windows, roof service, energy consulting, facade construction, flat roofs, insulation, crane work, photovoltaics, and pitched roofs. The company thus offers a wide range of services that focus on the planning, execution, and maintenance of roofs and facades.

Solar & Photovoltaics
View profile5(3)
Max Schüpbach AG Logo

Max Schüpbach AG 

Lützelflüh-Goldbach · Since 1983

The core activity of Max Schüpbach AG is the planning, installation and maintenance of heating, plumbing and solar systems, as well as the provision of related services such as consulting, planning and servicing.

Solar & Photovoltaics
View profile5(3)
MBP Solutions Ltd Logo

MBP Solutions Ltd 

Neuchâtel · Since 2004

MBP Solutions Ltd is a company focused on the management and valorisation of biological by-products. It provides services including by-product collection, trading and outsourced by-product management (OMBP), and supplies raw materials for fertilisers, biofuels, biogas substrates, animal and pet feed and technical/industrial applications, with support for regulatory compliance and sustainability.

Waste Management Industry
View profile5(3)
Mecana AG Logo

Mecana AG 

Reichenburg · Since 1989

The company develops and manufactures machines and processes, particularly in the field of water and climate conservation, and also offers a reliable service and spare parts service.

Waste Management IndustryMechanical Engineering Industry
View profile4.7(3)
Meier + Dilitz Haustechnik AG Logo

Meier + Dilitz Haustechnik AG 

Zuckenriet · Since 2008

The core activity of Meier and Dilitz Haustechnik AG is the planning, installation and maintenance of building technology systems, particularly in the areas of heating, ventilation, solar and sanitary facilities.

Solar & Photovoltaics
View profile5(3)
Meillard, Cressier, Glaus S.A. Logo

Meillard, Cressier, Glaus S.A. 

Cortaillod · Since 1984

The core activity of Meillard Cressier Glaus SA encompasses the planning, installation and maintenance of electrical systems, telephone and computer networks, domotic systems as well as photovoltaic systems.

Electrical Planning & InstallationSolar & Photovoltaics
View profile4.7(3)
NetZulg AG Logo

NetZulg AG 

Steffisburg · Since 2002

The core activity of NetZulg AG is the secure and efficient supply of households and businesses with electricity, water and heat in the Steffisburg region and adjacent areas. This also includes the development and provision of innovative solutions in energy transmission and distribution to increase energy efficiency and minimize environmental impacts.

Energy Suppliers
View profile5(3)
NOVA POWER AG Logo

NOVA POWER AG 

Zumikon · Since 2022

The core activity of Novapower AG is the provision of services in the field of electrical engineering, particularly in the areas of electrical installation, security technology and corporate process management. The company offers services such as electrical installation, project management and consulting, and employs skilled professionals including electricians, technicians and finance and accounting specialists.

Solar & Photovoltaics
View profile5(3)
Oberli + Vogt Haustechnik GmbH Logo

Oberli + Vogt Haustechnik GmbH 

Bettlach · Since 2020

The core activity of OBERLI+VOGT GmbH is the planning, installation and maintenance of building technology systems, particularly in the areas of heating, plumbing, solar and chimney systems. This includes, among other things, the renovation and conversion of heating systems, the installation of heat pumps and whirlpools, as well as the planning and implementation of individual solutions for bathroom renovations and other building technology projects.

Solar & Photovoltaics
View profile5(3)
Optiwaste SA Logo

Optiwaste SA 

Le Mont-Sur-Lausanne · Since 2002

Optiwaste SA develops and supplies solutions to optimize waste management, including container-integrated electromechanical systems, OptiGreen kitchen-waste containers, and the WISE management platform. Offerings include weight-tax scales, access control, level measurement and access gates for collection centres; systems are designed, tested and assembled in Switzerland.

Waste Management IndustryMechanical Engineering Industry
View profile3.7(3)
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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.
Per page
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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.