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

trans-auto AG Logo

trans-auto AG 

Tafers · Since 1994

The core activity of trans-auto AG encompasses the areas of sewer cleaning and emptying, waste recycling, sludge recycling, maintenance of mobile toilets, as well as surface cleaning and sewer inspection. The company also provides services in the field of waste management and environmental protection.

Waste Management Industry
View profile
TRANS - ECOBROYAGE Sàrl Logo

TRANS - ECOBROYAGE Sàrl 

Poliez-Le-Grand · Since 2010

TRANS - ECOBROYAGE Sàrl provides transport services (containers, bulk, pallets), mobile grinding of tree trunks and green waste, and supplies/delivers topsoil, screened soil and wood chips.

Waste Management Industry
View profile
TRANSFORRER, R.Forrer Logo

TRANSFORRER, R.Forrer 

Oberhasli · Since 2009

The core activity of Transforrer Recycling encompasses three main areas: 1. **Metal Trading**: Purchase, reprocessing and sale of non-ferrous metals, cable residues and other high-quality raw materials. 2. **Transportation**: Execution of transports, including organization, trips and logistics, for customers with individually tailored solutions. 3. **Disposal**: Professional disposal of scrap metal, waste electronics, vehicle parts, old batteries, cardboard and bulky waste, in compliance with strict occupational health and environmental protection guidelines.

Waste Management Industry
View profile
Travetsch AG Logo

Travetsch AG 

Othmarsingen · Since 2016

The core activity of TRAVETSCH AG encompasses two main areas: 1. **Environmental Consulting**: The company provides consulting services in the fields of sustainable mobility, environmental protection, and communication & training. 2. **Planetary Health Diet**: TRAVETSCH AG develops content and solutions in the area of sustainable and healthy nutrition, referred to as the "Planetary Health Diet". Additionally, the company also offers services in the areas of content maintenance, web design, content management, and office management.

Sustainability Sector
View profile
TreaTech SA Logo

TreaTech SA 

Préverenges · Since 2015

The core activity of TreaTech is the development and application of an innovative technology for converting liquid and solid waste streams into methane-rich, renewable gas through hydrothermal gasification. The goal is to transform waste from an environmental burden into valuable resources, thereby contributing to the reduction of climate change and supporting the global energy transition.

Sustainability Sector
View profile
TREECYCLE AG Logo

TREECYCLE AG 

Hünenberg · Since 2018

TREECYCLE AG offers investors a digital registered right called “TREE” recorded on the Ardor blockchain that grants participation in the proceeds of large-scale reforestation and timber sales. The company establishes and manages plantations of fast‑growing eucalyptus hybrids in Paraguay, markets the timber and allocates revenues according to its model (40% to investors, 50% reinvested, 10% for environmental and social projects).

Sustainability Sector
View profile
Treegether SA Logo

Treegether SA 

Vevey · Since 2020

The core activity of Treegether is to plant and maintain cocoa trees, as well as produce and sell chocolate made from the cocoa beans harvested from these trees. The company also offers sponsorships for cocoa trees that can be purchased by individuals, companies, schools and groups.

Sustainability Sector
View profile
Tree Global SA Logo

Tree Global SA 

Versoix · Since 2022

The core activity of Tree Global SA is the development and implementation of sustainable afforestation, reforestation and restoration projects (ARR) in various regions of the world, particularly in Africa, Asia and the Middle East. Industrial tree nurseries are established and operated to produce high-quality tree seedlings for the restoration of degraded areas. The goal is to reduce CO2 emissions, promote biodiversity and strengthen the local economy through these projects.

Sustainability Sector
View profile
Treenaps A. Rudolf von Rohr Logo

Treenaps A. Rudolf von Rohr 

Bubendorf · Since 2019

The core activity of RVR Service AG is the production and distribution of sustainable products, particularly 'Treenaps' and 'Treerolls' made from tree fibers. At the same time, the company is committed to environmental protection through reforestation and forest conservation. For every sale, a portion of the revenue is used for tree planting, with the goal of planting one tree for every 100 washes.

Sustainability Sector
View profile
Treetron GmbH Logo

Treetron GmbH 

Zurich · Since 2000

The core activity of Treetron GmbH involves the implementation of environmental projects, with the company specializing in the development of solutions for environmental analysis and monitoring. This includes the application of programming languages such as Julia, the conduct of statistical analyses, the creation of data visualizations, as well as the use of microcontrollers and server administration.

Sustainability Sector
View profile
Treeze GmbH Logo

Treeze GmbH 

Uster · Since 2012

The core activity of treeze Ltd. is consulting and research in the field of Life Cycle Assessment (LCA), particularly in the areas of environmental assessment, product development, corporate management and political decision-making. The company offers services such as Life Cycle Inventory Analysis, Life Cycle Impact Assessment, Carbon Footprint, Water Footprint and Labelling. It supports customers in the application of LCA methods and also provides training and coaching.

Technical Consulting & EngineeringSustainability Sector
View profile
Treier Obstbau AG Logo

Treier Obstbau AG 

Wölflinswil · Since 2023

Sustainability Sector
View profile
Trenn GmbH Logo

Trenn GmbH 

Rudolfstetten · Since 2023

The core activity of Trenn GmbH is the comprehensive handling of disposal and elimination processes for production residues and waste, including transport logistics, recycling, disposal and notification for cross-border transportation of waste.

Waste Management Industry
View profile
Tresolar AG Logo

Tresolar AG 

Baar · Since 2010

The core activity of TRE SOLAR AG is the planning, consulting, installation and maintenance of photovoltaic systems, as well as the provision of services in the field of smart building technology, particularly the integration of solar energy into buildings and the realization of individual solar projects for private and commercial customers.

Solar & Photovoltaics
View profile
TRE Territorio Raum Espace di Alma Sartoris Logo

TRE Territorio Raum Espace di Alma Sartoris 

Bellinzona · Since 2022

The core activity of Territorio Raum Espace is to advise and support the development of territories and landscapes, particularly through: territory and landscape development, citizen participation and engagement, project and process management, and territorial analysis. The company supports municipalities and other stakeholders in shaping and developing territories and landscapes, taking into account social, economic, and ecological aspects.

Sustainability Sector
View profile
tribu verte Sàrl Logo

tribu verte Sàrl 

Neuchâtel · Since 2018

The core activity of the company "Tribu verte Sàrl" consists of organizing and coordinating projects and activities in the field of biodiversity, particularly in collaboration with public institutions and organizations. The company provides support in planning and implementing projects aimed at promoting and protecting species diversity. This also includes organizing volunteer deployments and coordinating participants in such projects.

Sustainability Sector
View profile
Tricomix SA Logo

Tricomix SA 

S. Antonino · Since 1990

The core activity of Tricomix SA is the processing and valorization of organic waste, particularly plant residues and invasive neophytes, through a specialized composting process. The company offers various services, including: the collection and disposal of plant waste and garden waste; the processing of these waste materials into compost and other products such as potting soil, mixtures, and bark mulch; the direct sale of these products to customers; and the provision of transportation services for containers and waste bins. The company aims to transform waste into valuable and environmentally friendly products, thereby contributing to a sustainable future.

Waste Management Industry
View profile
Tricycling Mittelthurgau AG Logo

Tricycling Mittelthurgau AG 

Frauenfeld · Since 1990

The core activity of Tricycling Mittelthurgau AG is the disposal and recycling of waste of all kinds. The company operates a waste collection center and a Regional Acceptance Center (RAZ) and offers services such as collection, clearance and disposal of household appliances, electronic devices and other waste.

Waste Management Industry
View profile
TRIDRANSES - CENTRE DE TRI DU MERDENSON SA Logo

TRIDRANSES - CENTRE DE TRI DU MERDENSON SA 

Le Châble Vs · Since 2003

Waste Management Industry
View profile
TRIENERGY Schweiz AG Logo

TRIENERGY Schweiz AG 

Bottmingen · Since 2007

The core activity of TRITEC is the generation of solar power through photovoltaic systems, particularly in the system wholesale trade and large-scale plant construction. The company develops, manufactures and distributes photovoltaic products and innovative solar solutions, such as solar modules, substructures, inverters and intelligent system solutions for the planning, design and performance control of photovoltaic systems.

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
  • 263
  • 264
  • 265
  • 266
  • 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.