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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

Frey Elektroanlagen AG Logo

Frey Elektroanlagen AG 

Schiers · Since 2012

The core activity of Frey Elektroanlagen AG is the planning, installation and maintenance of electrical systems for private customers, commercial and public institutions.

Solar & Photovoltaics
View profile5(9)
GESTICAL SA Logo

GESTICAL SA 

Cadempino · Since 2003

The core activity of Gestical SA is to provide services and products in the field of energy efficiency, particularly in the analysis and optimization of energy consumption and distribution in buildings. This includes: fluid and thermovector analyses, energy and thermographic analyses, control and optimization of heating and cooling systems, and the development and distribution of products such as magnetic filters, heat distributors and LoRa controllers. The company also offers consulting services to support customers in reducing their energy consumption and lowering their energy costs.

Sustainability Sector
View profile4.4(9)
GGT Gut Gebäudetechnik AG Logo

GGT Gut Gebäudetechnik AG 

Emmenbrücke · Since 1999

The core activity of GGT Gut Gebäudetechnik AG is the planning, installation, maintenance and repair of various building technology systems, in particular: heating systems, air conditioning and refrigeration systems, ventilation systems, and solar systems. The company also offers consulting and renovation services for existing systems.

Solar & Photovoltaics
View profile4.6(9)
Gloor + Baumann Holzbau AG Logo

Gloor + Baumann Holzbau AG 

Leutwil · Since 1999

The core activity of Gloor & Baumann Holzbau AG is the provision of services in the field of timber construction, particularly in the following areas: Carpentry (traditional carpentry to modern element construction), Roofing (roofing work in the pitched and flat roof sector), Roofing (roof renovations, roofing work in the pitched and flat roof sector, roof inspections, roof cleaning and repairs), Joinery (general joinery work, stairs and custom-made cabinets and doors), and Photovoltaics (integrated and mounted photovoltaic systems from planning to acceptance). The company thus offers a wide range of services in the field of timber construction and building envelopes.

Interior ConstructionTimber Construction & CarpentrySolar & Photovoltaics
View profile4.4(9)
Heizwerk Gotthard AG Logo

Heizwerk Gotthard AG 

Göschenen · Since 2012

The core activity of oeko energie ag is the planning, construction and operation of heating plants and distribution networks for the supply of heat to end consumers, with a focus on the use of renewable energies such as wood, earth and waste heat.

Energy Suppliers
View profile4.7(9)
Heller AG Kälte-Energie-Technik Logo

Heller AG Kälte-Energie-Technik 

St. Margrethen Sg · Since 1993

The company's core activity is the development, manufacture and provision of products and services in the field of refrigeration energy technology.

Energy Suppliers
View profile4.9(9)
Hugelshofer Recycling AG Logo

Hugelshofer Recycling AG 

Frauenfeld · Since 2010

The core activity of the Hugelshofer Group encompasses the areas of transport, logistics and recycling/disposal. Specifically, the company offers services such as skip container service, transportation, disposal, consulting, waste collection/taxi service, as well as recycling of various materials including metals, glass, electronics, wood, paper/cardboard, plastics, liquids and tires.

Waste Management Industry
View profile5(9)
IBB Energie AG Logo

IBB Energie AG 

Brugg Ag · Since 2013

The company's core activity is the supply and service of energy, water and communication, including the provision of electricity, gas, water, heat and cold, as well as the construction and maintenance of networks and infrastructure. The company also offers energy consulting, metering and projects & geoinformation. Additionally, it is active in e-mobility and photovoltaics.

Energy Suppliers
View profile3.2(9)
IBB Strom AG Logo

IBB Strom AG 

Brugg Ag · Since 2001

IBB Strom AG supplies electricity products and services for residential and commercial customers, including market-customer offerings as well as metering, network and supply-related services.

Energy Suppliers
View profile3.2(9)
IB Langenthal AG Logo

IB Langenthal AG 

Langenthal · Since 2007

The company is an energy and services company that offers a wide range of activities in the fields of energy, telecommunications, real estate and infrastructure. The core activities include: energy supply (electricity, gas, water, heat/cooling), telecommunications services (DarkFiber, telecom), energy consulting and efficiency (energy consulting, building renovation, funding programs), real estate and infrastructure services (real estate, infrastructure, electrical installations), and e-mobility solutions (charging solutions, charging stations, cost accounting, public charging). The company thus offers a comprehensive range of services and products tailored to the needs of business customers.

Energy SuppliersSolar & Photovoltaics
View profile4.1(9)
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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.