ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The first Swiss company directory, built to boost AI visibility.

Product
  • Pricing
  • Directory
  • Industries
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,219 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

Filters
IndustryEnergy & Environment
Search results

Matching companies

9'014 companies found

SWISS FRESH WATER SA Logo

SWISS FRESH WATER SA 

Romanel-Sur-Lausanne · Since 2008

Swiss Fresh Water develops, manufactures and distributes machines for water treatment and desalination to provide drinking water in regions with limited access to clean water. The machines are robust and designed for use under extreme conditions. The company also offers services such as maintenance, testing and quality assurance to ensure that the produced water meets local health standards.

Water Supply
View profile
Swissgas, Schweizerische Aktiengesellschaft für Erdgas Logo

Swissgas, Schweizerische Aktiengesellschaft für Erdgas 

Zurich · Since 1993

Swissgas, Schweizerische Aktiengesellschaft für Erdgas is a private joint‑stock company that serves as a service platform for regional network companies by operating the high‑pressure gas network and marketing transport capacity. It owns a high‑pressure pipeline network (260 km), manages intake and custody transfer stations, handles nominations and transport coordination (including the KSDL) and markets transit capacity. Its activities include asset management, operation, maintenance and monitoring of pipeline infrastructure and representation in industry forums.

Energy Suppliers
View profile
Swissgas-Speicher Aktiengesellschaft Logo

Swissgas-Speicher Aktiengesellschaft 

Zurich · Since 1980

The core activity of Swissgas AG is the operation and management of natural gas networks, including asset management, transport management and operation of KSDL (concession contracts for Swiss natural gas distribution).

Energy Suppliers
View profile
Swiss Green Buildings (SGB) Logo

Swiss Green Buildings (SGB) 

Glattpark (Opfikon) · Since 2017

The core activity of Swiss Green Buildings (SGB) is to provide a platform for Swiss companies specializing in sustainable planning and construction in China. The organization aims to promote, disseminate and make known Swiss quality standards and sustainable technologies in urban planning and construction in China.

Sustainability Sector
View profile
Swiss Green Gas International AG Logo

Swiss Green Gas International AG 

Dättwil Ag · Since 2020

The core activity of Swiss Green Gas International Ltd. is the development and promotion of green gas and hydrogen as key technologies for the energy transition and decarbonization in Switzerland. This includes in particular the production of green gas and hydrogen from renewable energy sources as well as the development of Power-to-X technologies for converting excess electricity into other forms of energy. The company aims to deploy these technologies in various industrial sectors to contribute to a green economy.

Energy Suppliers
View profile
Swiss Green Incubator Logo

Swiss Green Incubator 

Lugano · Since 2023

The core activity of Swiss Green Incubator is to promote and support projects and companies in the field of natural medicine, sustainable agriculture and bio-building. This includes providing resources, consulting and incubating start-ups that develop products and services in the field of natural medicine, nutrition and sustainable agriculture. The company aims to improve human health and well-being by promoting natural and sustainable solutions.

Sustainability Sector
View profile
Swiss Green Solutions AG Logo

Swiss Green Solutions AG 

Wangen Sz · Since 2022

The core activity of Swiss Green Solutions AG is consulting and solution development in the field of photovoltaics and energy storage, with a focus on sustainable, modular and holistic solutions.

Solar & Photovoltaics
View profile
Swiss Impact Investment Association Logo

Swiss Impact Investment Association 

Zug · Since 2015

The company's core activity is the promotion of Impact Investing, i.e. investing in companies and projects that, in addition to financial returns, also have a positive social or environmental impact. The company serves as a platform for best-practice impact investments and aims to identify and promote investment opportunities with a positive impact. It also hosts conferences and summits to discuss and promote the topic of Impact Investing.

Sustainability Sector
View profile
SWISS INNOVATION POWER SA Logo

SWISS INNOVATION POWER SA 

Geneva · Since 2011

The core activity of Swiss Innovation Power is the promotion of Swiss innovations and the development of international business relationships in the fields of environmental technologies, health services and medical products. The company supports Swiss companies in opening up new markets and promotes trade and cooperation between Swiss companies and international partners.

Sustainability Sector
View profile
Swiss-instasolar Sàrl Logo

Swiss-instasolar Sàrl 

Givisiez · Since 2019

The core activity of Swiss-Instasolar is the planning, installation and maintenance of solar systems, in particular photovoltaic systems, for private and commercial customers.

Solar & Photovoltaics
View profile
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
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
102050
  • 1
  • More pages
  • 531
  • 532
  • 533
  • 534
  • More pages
  • 902
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.