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 · Imprint744,173 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

Filters
IndustryEnergy & Environment
Search results

Matching companies

9'016 companies found

SYNERIX Sagl Logo

SYNERIX Sagl 

Loco · Since 2012

The core activity of Synerix GmbH is the planning, installation and marketing of solar power systems.

Solar & Photovoltaics
View profile
Synsolar GmbH Logo

Synsolar GmbH 

Basel · Since 2020

Technical Consulting & EngineeringSolar & Photovoltaics
View profile
Tahirukaj GmbH Logo

Tahirukaj GmbH 

Baar · Since 2013

The core activity of Tahirukaj GmbH is the planning, installation and maintenance of building technology systems, particularly in the areas of plumbing, heating and solar energy. This includes the creation of sanitary facilities, heating systems and solar systems for private households, medium-sized businesses and large corporations. In addition, the company also offers service and repair services for defective water pipes, clogged drains, heating failures and other building technology problems.

Plumbing & Building ServicesSolar & Photovoltaics
View profile
Talesun Solar Switzerland AG Logo

Talesun Solar Switzerland AG 

Zug · Since 2011

Solar & Photovoltaics
View profile
Techem (Schweiz) AG Logo

Techem (Schweiz) AG 

Urdorf · Since 1995

The core activity of Techem is the development and provision of solutions for the real estate industry, particularly in the areas of energy efficiency and sustainability. This includes the planning, installation and maintenance of systems for measuring and controlling energy consumption, as well as the development of digital solutions for optimizing energy efficiency in buildings. The company positions itself as a service provider for the real estate industry and offers solutions for reducing CO2 emissions and promoting sustainability in the real estate sector.

Sustainability Sector
View profile
Teko'Home, Mengis Séverine Logo

Teko'Home, Mengis Séverine 

Villeneuve Vd · Since 2013

The core activity of Teko'Home is to advise and support customers in the renovation, optimization, and transformation of residential and commercial properties in the field of sustainable and environmentally friendly construction. The company offers neutral consulting, technical support, and project accompaniment to support customers in realizing their projects. The activities include, among others: energetic optimization and renovation of properties, consulting on the selection of environmentally friendly materials and technologies, project accompaniment from planning to realization, financing and administration of projects, and support in the establishment of residential and commercial cooperatives. The company focuses on promoting sustainable and environmentally friendly building and living and offers its customers comprehensive support in realizing their projects.

Sustainability Sector
View profile
TellCo Europe Sagl Logo

TellCo Europe Sagl 

Agno · Since 2008

The core activity of TellCo Europe is the development, production and provision of solutions for renewable energy, particularly solar LED lighting and solar power supply. The company also offers specialized services in the areas of off-grid solutions, solar containers, smart camps and communities, solar home systems and LED lighting solutions.

Solar & PhotovoltaicsElectrical Industry
View profile
Tell-Tex AG Logo

Tell-Tex AG 

Safenwil · Since 2009

The core activity of Tell-Tex is the collection and utilization of used textiles, particularly clothing collection in Switzerland, with the aim of recycling and reusing these textiles to conserve resources and protect the environment.

Waste Management Industry
View profile
TellusEnergie Sàrl Logo

TellusEnergie Sàrl 

Geneva · Since 2019

The core activity of TellusEnergie is the development and implementation of solutions for the production of renewable energy, particularly through geothermal projects. The focus is on the drilling and boring process for geothermal plants, where the company pays attention to minimizing risks, costs and environmental impacts.

Energy Suppliers
View profile
Tempi Recovery GmbH Logo

Tempi Recovery GmbH 

Rüschlikon · Since 2022

The core activity of Tempi Recovery GmbH is the meaningful utilization of plastic waste from cables, particularly through cable recycling, as well as digital waste management and logistics in the field of non-ferrous metal recycling.

Waste Management Industry
View profile
TERIS Teleriscaldamento del Bellinzonese SA Logo

TERIS Teleriscaldamento del Bellinzonese SA 

Giubiasco · Since 2010

The core activity of Teris SA is the production and distribution of district heating (Teleriscaldamento) in the Bellinzonese area of Switzerland. The company uses the energy generated from the thermal valorization of waste to produce heat for buildings and distributes it to customers through a network.

Energy Suppliers
View profile
TerraTec Hanspeter Frey Logo

TerraTec Hanspeter Frey 

Lindau · Since 1999

Waste Management Industry
View profile
Terr'Ô de Vie Sàrl Logo

Terr'Ô de Vie Sàrl 

Geneva · Since 2023

Sustainability SectorRetail - Food & Luxury ItemsRestaurants
View profile
The Carbon Reserve Logo

The Carbon Reserve 

Geneva · Since 2022

The core activity of "The Carbon Reserve" is to provide a secure, efficient and transparent platform for trading carbon emissions and promoting the reduction of atmospheric carbon. This includes the issuance and management of its own currency called "Toco", which serves as a means of financing climate protection projects, as well as providing infrastructure for the global carbon market. The company aims to promote demand for decarbonization and support the transition to a carbon-neutral economy.

Sustainability Sector
View profile
thermatechnik GmbH Logo

thermatechnik GmbH 

Hindelbank · Since 2011

The core activity of Thermatechnik GmbH is the planning, sales, installation and servicing of heat pump systems. The company provides comprehensive and expert support for standard to special solutions in the field of heat pump technology.

Plumbing & Building ServicesSolar & Photovoltaics
View profile
Thermo Dynamik Solar AG Logo

Thermo Dynamik Solar AG 

Münsingen · Since 1994

Solar & Photovoltaics
View profile
Thermosource AG Logo

Thermosource AG 

Biel/Bienne · Since 2018

Technical Consulting & EngineeringEnergy Suppliers
View profile
TheSimple-X GmbH Logo

TheSimple-X GmbH 

Liesberg · Since 2020

The core activity of TheSimple-X is the development, manufacture and marketing of innovative water-saving mouthwashers, in particular the product TheSimpleSip, which converts any standard faucet into a high-tech mouthwasher.

Sustainability Sector
View profile
Thévenaz-Leduc S.A. Logo

Thévenaz-Leduc S.A. 

Ecublens Vd · Since 1954

Waste Management Industry
View profile
Thomas Bürki GmbH Logo

Thomas Bürki GmbH 

Benglen · Since 1997

The core activity of Thomas Bürki GmbH is the consulting and implementation of projects in the field of energy efficiency, climate protection and environmental protection for industrial companies and political institutions. This includes the development of energy concepts, process analyses, climate protection projects, environmental protection measures and the accompaniment of project implementation. Additionally, the company offers policy consulting and support in the development of laws and implementation programs.

Technical Consulting & EngineeringSustainability Sector
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
  • 310
  • 311
  • 312
  • 313
  • More pages
  • 451
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.