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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

Gmür Energie GmbH Logo

Gmür Energie GmbH 

Mörschwil · Since 1997

Gmür Energie GmbH designs, installs and services photovoltaic systems (in-roof and on-roof) and supplies battery storage, e-mobility charging solutions and energy-planning services. The company handles projects from roof analysis and planning through to commissioning and provides a turnkey service for solar installations.

RoofingSolar & Photovoltaics
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GOAG General Optimizing AG Logo

GOAG General Optimizing AG 

Wallisellen · Since 2006

The core activity of GOAG is the nationwide inspection and analysis of air and water quality in buildings, including the installation and monitoring of IoT sensors. The company also provides consulting and support for the implementation of improvement measures and compliance with standards and regulations for building technology systems.

Sustainability Sector
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GÖBEK GmbH Logo

GÖBEK GmbH 

Basel · Since 2021

The core activity of GÖBEK is to advise companies in the field of material flow management, particularly in the implementation of circular economy as an attractive business model. In doing so, GÖBEK supports companies in identifying and utilizing optimization potential in waste disposal and recycling, with the goal of combining resource conservation and economic action.

Management ConsultingWaste Management Industry
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Go for Impact Logo

Go for Impact 

Zurich · Since 2018

The core activity of the company 'Go for Impact' is to promote sustainability and environmental awareness in the Swiss economy. This includes the development and transfer of knowledge bases, the initiation and support of implementation partnerships, as well as the visualization and evaluation of effective corporate contributions. The company also offers events, workshops and toolboxes to support companies in developing climate strategies and implementing sustainability goals.

Sustainability Sector
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GOLDWATER SUISSE SA Logo

GOLDWATER SUISSE SA 

Chiasso · Since 2018

Goldwater Suisse S.A. is a consulting and services company specializing in the areas of energy, environment, and economy. The company's core activities include: * Consulting and support for the energy transition and the development of sustainable energy sources * Environmental consulting and engineering, including the preparation of environmental assessments and support for obtaining environmental permits * Strategic consulting for companies, including the development of business strategies and the optimization of business processes * Research and development in the field of green chemistry and hydrogen technology * Support for the development of projects in the field of renewable energies, particularly in the areas of geothermal energy and hydrogen production The company positions itself as an expert in the energy transition and sustainable development of companies, offering its customers a wide range of services to support them in achieving their goals.

Sustainability Sector
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gommisWALDKraft AG Logo

gommisWALDKraft AG 

Gommiswald · Since 2011

gommisWALDKraft AG operates a wood‑chip heating plant connected to a district heating network. The system supplies heat to schools, sports halls, residential buildings, municipal facilities and commercial premises via a network of about 4,000 metres and provides CO2‑neutral heat to its customers.

Energy Suppliers
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Goodness GmbH Logo

Goodness GmbH 

Küssnacht Am Rigi · Since 2010

Goodness GmbH is a bio-certified small business specializing in the manufacture and distribution of dietary supplements and food products. The company's core activity encompasses the development, production, and sale of products such as krill oil, Coralcare, coconut oil, pet food, and soy snacks, which are derived from organic farming and are free from yeast, lactose, and gluten.

Sustainability Sector
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Gort Solar GmbH Logo

Gort Solar GmbH 

Bad Ragaz · Since 2014

The core activity of Gort Solar GmbH is the planning, design, installation and maintenance of photovoltaic systems (solar power systems) for private and commercial customers in Switzerland. The company offers individual solutions for sustainable energy supply, ranging from small rooftop systems for single-family homes to large solar systems for industrial and commercial enterprises.

Solar & Photovoltaics
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Go Smart Solution AG Logo

Go Smart Solution AG 

Lupfig · Since 2018

The core activity of Go Smart Solution AG is the planning and implementation of photovoltaic projects, including the calculation of the required system size, engineering for the photovoltaic system, and the provision of A-to-Z services to create sustainable energy solutions for customers.

Solar & Photovoltaics
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GoSoft GmbH Logo

GoSoft GmbH 

Endingen · Since 2000

The core activity of GoSoft GmbH is the planning and implementation of projects in the field of applied electrical and building technology, particularly in the areas of energy infrastructure, solar technology, smart building, smart energy and smart grid, as well as the development of sustainable energy and building technology solutions for private and commercial customers.

Technical Consulting & EngineeringConstruction & Project ManagementSolar & Photovoltaics
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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.