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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,219 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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IndustryEnergy & Environment
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Matching companies

9'014 companies found

renma AG Logo

renma AG 

Immensee · Since 2021

The company's core activity is the planning, implementation and management of photovoltaic systems, as well as consulting and implementing energy concepts for companies and property owners. This also includes financing and operating plants, creating business cases and analyzing real estate portfolios for potential for renewable energy.

Technical Consulting & EngineeringSolar & Photovoltaics
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RenoMa GmbH Logo

RenoMa GmbH 

Langnau Im Emmental · Since 1997

RenoMa GmbH provides services in roofing, façade construction, sheet‑metal work and solar energy installations. The company supports projects from consultation and execution through to maintenance and repairs, including scaffolding and roof‑plumbing tasks.

Solar & Photovoltaics
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ReoR20 AG Logo

ReoR20 AG 

Zurich · Since 2019

The core activity of REOR20 is the development and provision of artificial intelligence (AI)-based solutions for managing flood risks. Specifically, the company offers physically-based AI systems that enable precise prediction, simulation and quantification of flood risks. The solutions are tailored to the needs of insurers, governments and municipalities and aim to contribute to minimizing the impact of flood events and increasing resilience to such events.

Sustainability Sector
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Reos Partners Europe Sàrl Logo

Reos Partners Europe Sàrl 

Geneva · Since 2016

Sustainability Sector
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Replastic Technologies AG Logo

Replastic Technologies AG 

Wollerau · Since 2021

Replastic Technologies AG provides services in the field of industrial installations on the five continents, particularly in the field of plastic recycling technologies. The company's core activity includes the development and implementation of solutions for the recycling of plastics, including the planning and construction of pilot plants.

Waste Management IndustryPlastics Industry
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Representa AG Logo

Representa AG 

Zurich · Since 1949

The core activity of Representa AG is the development and application of chemical-free treatment technologies for the recovery of water and valuable ingredients from process streams in agriculture and the textile industry. This includes in particular the treatment of biomass, the recovery of indigo and caustic soda, as well as the purification of wastewater.

Sustainability Sector
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RESDAG Ressourcen und Deponien AG Logo

RESDAG Ressourcen und Deponien AG 

St. Gallen · Since 2012

The core activity of Resdag, Ressourcen und Deponien AG, consists of planning, financing, implementing and rehabilitating landfill sites in Eastern Switzerland, particularly in the cantons of St. Gallen and Thurgau, taking into account ecological, economic and sustainable aspects.

Waste Management Industry
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Réseau Consignes Sàrl Logo

Réseau Consignes Sàrl 

Mollens Vd · Since 2019

Réseau Consignes Sàrl advises and assists producers in adopting reusable packaging. The company performs life-cycle analyses and provides guidance on packaging and label compatibility with washing, washing infrastructure, labeling and closure solutions, and logistics adapted to small and large volumes.

Sustainability Sector
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Réseau CAD Fully SA Logo

Réseau CAD Fully SA 

Fully · Since 2024

Energy Suppliers
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Réseau Transition Suisse Romande Logo

Réseau Transition Suisse Romande 

Biel/Bienne · Since 2022

The core activity of the company "Réseau Transition Suisse Romande" is to promote and support ecological and social transition in Switzerland, particularly in the Romandy region. This includes organizing events, implementing education and information programs, supporting initiatives and projects that advocate for sustainable development, as well as networking actors and stakeholders in this field.

Sustainability Sector
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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.