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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

ProSwissEnergy SA Logo

ProSwissEnergy SA 

Geneva · Since 2021

ProSwissEnergy SA is an engineering and installation firm for building energy systems, providing energy studies, design and installation of photovoltaic systems, heat pumps, HVAC, heating and electrical installations. Certified technicians manage projects for single-family homes, multi‑unit and commercial buildings and provide project support including subsidy guidance and commissioning.

Solar & Photovoltaics
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Prozirkula GmbH Logo

Prozirkula GmbH 

Bern · Since 2024

Prozirkula GmbH is a private-sector competence centre that advances the circular economy and advises public procurement bodies on circular procurement. Its services include developing tender criteria, procurement support, supplier development, workshops, training and knowledge resources.

Sustainability Sector
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PR Pulizia e Risanamenti SA Logo

PR Pulizia e Risanamenti SA 

Viganello · Since 2006

The core activity of PR Pulizia Risanamenti SA is the provision of services in the field of sewerage, particularly in the inspection, cleaning and rehabilitation of sewerage systems, wastewater pipes, manholes and other water and wastewater systems. This also includes specialized services such as infrared investigations, TV inspections, pressure tests and the application of spray and guanatechniques for the rehabilitation of sewerage systems.

Waste Management Industry
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PS Panneaux solaires SA Logo

PS Panneaux solaires SA 

Lausanne · Since 2023

PS Panneaux solaires SA is a subsidiary of the GEFISWISS Energy Transition Fund that manages activities related to supported photovoltaic installations. The company designs, builds and operates solar installations and sells products and services in energy services, renewable energy and energy efficiency, offering turnkey systems, maintenance, financing and technical/legal solutions for homeowners, condominiums, public bodies and real-estate actors.

Solar & Photovoltaics
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pulsenergie KmG Logo

pulsenergie KmG 

Scherzingen · Since 2023

The core activity of Pulsenergie is the planning, delivery, assembly and installation of solar systems, energy storage systems and energy management systems for private households. The company also offers consulting services to support customers in selecting and implementing efficient energy solutions.

Solar & Photovoltaics
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Pure Sun Energy Sàrl Logo

Pure Sun Energy Sàrl 

Montricher · Since 2024

Pure Sun Energy Sàrl provides photovoltaic solutions including system assessment, design, installation, commissioning and maintenance, and supplies battery storage, solar pergolas, heat pumps and electric vehicle charging stations.

Solar & Photovoltaics
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PVpro AG Logo

PVpro AG 

Immensee · Since 2022

PVpro AG is an independent platform that connects property owners with vetted photovoltaic installers and storage solution providers. The site analyses roof data, mediates up to three regional quotes from verified installers and enables comparison of real offers.

Solar & Photovoltaics
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P. Wolf AG Logo

P. Wolf AG 

Dällikon · Since 1995

The core activity of P. Wolf AG Electrical Systems is the planning, installation, maintenance and repair of electrical systems and installations, including: electrical installations for new and renovation projects, industrial electrical engineering and control systems, lighting technology, emergency power supply and systems, network analysis and optimization, solar energy and infrastructure installations for e-mobility, and the sale of electrical devices and appliances. The company also provides consulting and service in these areas.

Electrical Planning & InstallationSolar & Photovoltaics
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PYLETECH ENERGY HOLDING SA Logo

PYLETECH ENERGY HOLDING SA 

Nyon · Since 2011

The core activities of Pyletech encompass five main areas: 1. **Shipping**: Pyletech operates in the shipping sector, providing services and solutions for the maritime industry. 2. **Energy**: The company is active in the energy sector, focusing on reducing greenhouse gas emissions and promoting sustainable energy sources. 3. **Information Technology**: Pyletech offers IT services and solutions to support businesses in increasing efficiency and innovation. 4. **Real Estate & Logistics**: The company invests in and develops real estate projects, and provides logistics services. 5. **Social Responsibility**: Pyletech is committed to reducing greenhouse gas emissions and adhering to the principles of the Paris Climate Agreement. Overall, Pyletech is a diversified company with a broad range of activities across various industries.

Sustainability SectorHolding Companies
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Qanta Energy AG Logo

Qanta Energy AG 

Zug · Since 2012

The core activity of Qanta Energy is the production of local, carbon-free and resilient energy through the ownership and operation of renewable energy generation facilities, such as solar parks and rooftop installations. Additionally, the company also offers energy renovation and optimization services to customers to reduce their energy needs.

Solar & Photovoltaics
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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.