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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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9'014 companies found

Verein Oekostadt Basel Logo

Verein Oekostadt Basel 

Basel · Since 1987

The core activity of Ökostadt Basel is the promotion of environmental protection and sustainable urban development in Basel. Specifically, this includes the initiation and implementation of projects to create and enhance green spaces, such as facade greening, tree sponsorships, and the creation of natural recreation areas. Furthermore, the association advocates for environmentally friendly urban planning and the protection of natural resources.

Sustainability Sector
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Verein Reffnet.ch - Netzwerk Ressourceneffizienz Schweiz Logo

Verein Reffnet.ch - Netzwerk Ressourceneffizienz Schweiz 

Zug · Since 2014

Reffnet offers consulting services to small and medium-sized enterprises (SMEs) and municipalities in the areas of material efficiency, circular economy, food save, hospitality and energy. The company's core activity is to conduct impulse consulting, eco-checks and eco-compass consulting to support companies and municipalities in implementing sustainable and environmentally friendly practices.

Sustainability Sector
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Verein Swiss Transit Lab Logo

Verein Swiss Transit Lab 

Schaffhausen · Since 2019

Swiss Transit Lab is a competence network that focuses on the development and testing of intelligent mobility solutions in practice. The core activities include: Piloting new technologies and solutions in the field of Smart Mobility and Smart Cities, Developing new mobility offers and services, Promoting networking and knowledge transfer between private and public actors, Evaluating the social perception and acceptance of new mobility solutions, and Developing implementation strategies for new mobility solutions in public spaces. The company aims to increase the efficiency, safety, and sustainability of traffic by combining state-of-the-art technologies with practical and user-friendly applications.

Sustainability Sector
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Verein Wisent im Thal Logo

Verein Wisent im Thal 

Welschenrohr · Since 2022

The core activity of the company 'Wisent im Thal' is the reintroduction and protection of European bison in the Jura region of Switzerland. This includes the care and monitoring of free-roaming bison test herds, the implementation of guided tours and educational programs, as well as the sale of souvenirs and the acquisition of supporters and donors for the project.

Sustainability Sector
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Veritas Global Sàrl Logo

Veritas Global Sàrl 

Geneva · Since 2018

Veritas Global Sàrl is a consultancy providing economics and strategy advisory services. It offers economic appraisal (impact, cost–benefit, risk and scenario analysis), stakeholder engagement (identification, mapping and connecting) and strategic communication, with priorities including climate change, conflict negotiation and infrastructure.

Sustainability Sector
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Verora AG Logo

Verora AG 

Neuheim · Since 1998

Verora AG processes green waste and tree/shrub cuttings into humus compost, nutrient-rich 'Schwarzerde', and produces and sells certified plant charcoal (biochar) and dried wood chips (Qualischnitzel). The company operates composting sites, uses PYREG pyrolysis systems for biochar production, and provides green-waste acceptance, drying services, sales and advisory and quality-assurance services for humus management and Terra Preta-like soils.

Waste Management Industry
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vertify.earth GmbH Logo

vertify.earth GmbH 

Horgen · Since 2022

vertify.earth GmbH operates the vertify.impact platform and provides geospatial and IoT-based monitoring and analysis services that produce site-specific dashboards to measure environmental and socio-economic change. The company also offers consulting and project implementation support for reporting and nature-conservation initiatives.

Sustainability SectorWeb Portals & Platform Companies
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VERZERI & ASMUS SAGL, Ingegneri Consulenti Logo

VERZERI & ASMUS SAGL, Ingegneri Consulenti 

Caslano · Since 2008

VERZERI & ASMUS SAGL, Ingegneri Consulenti is an engineering firm specializing in building thermal energy and plant engineering for residential and industrial properties. Services include design of heating, ventilation, air-conditioning and sanitary systems, building physics, feasibility studies, CECE energy certifications, assessments and operational optimizations, and consultancy on solar and district heating systems.

Technical Consulting & EngineeringConstruction & Project ManagementSustainability Sector
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VeSa Solar GmbH Logo

VeSa Solar GmbH 

Boniswil · Since 2022

VeSa Solar GmbH provides planning, consultation and installation of photovoltaic and solar systems, along with component supply and comprehensive service support.

Solar & Photovoltaics
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VESNEA AG Logo

VESNEA AG 

Basel · Since 2020

VESNEA AG is a venture builder and accelerator that supports ethical AI technologies and sustainable impact projects. The firm provides digital assets advisory, fundraising advisory, and develops sustainable and regenerative projects while supporting portfolio companies across AI, Web3 and environmental initiatives.

Sustainability SectorFinTechWeb Portals & Platform Companies
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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.