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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
DirectoryEnergy & Environment

Energy & Environment

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9'016 companies found

Netzgesellschaft Andermatt AG Logo

Netzgesellschaft Andermatt AG 

Andermatt · Since 2011

The core activity of oeko energie ag is the planning, construction and operation of heating plants and distribution networks for the supply of heat to end consumers, with a focus on the use of renewable energies such as wood, earth and waste heat.

Energy Suppliers
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NeuchCup Sàrl Logo

NeuchCup Sàrl 

Cortaillod · Since 2016

The company focuses on promoting sustainable and environmentally friendly practices, particularly in the area of waste reduction and the zero-waste approach. It provides information, resources, and inspiration to businesses and individuals to promote a more environmentally friendly lifestyle. The company's core activity is to provide education and awareness on environmentally friendly practices and to support businesses in implementing zero-waste strategies.

Sustainability Sector
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Neue Energien May Logo

Neue Energien May 

Lohn-Ammannsegg · Since 2012

Neue Energien May distributes products for photovoltaic systems and heat pumps. The offering includes components from manufacturers such as Tigo Energy, KACO, Megasol and Altec, and the company provides consultation and heat-pump installation in cooperation with TCA Thermoclima.

Electrical Planning & InstallationSolar & Photovoltaics
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Neue erneuerbare Projekte AG Logo

Neue erneuerbare Projekte AG 

Baar · Since 2009

Solar & Photovoltaics
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neugruen AG Logo

neugruen AG 

Baar · Since 2021

neugruen AG markets and manages residential and commercial rental units within the Neugrüen development. Offerings include rental apartments (2.5–4.5 rooms), commercial spaces delivered as shell for tenant fit-out, Minergie standards (P‑Eco and A‑Eco), photovoltaic and geothermal/wastewater heat-pump systems, on-site mobility services and a childcare facility.

Sustainability Sector
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Neuhauser Solar GmbH Logo

Neuhauser Solar GmbH 

Leuggern · Since 2022

The Neuhauser Solar GmbH company primarily deals with the planning, consulting, installation and assembly of solar and photovoltaic systems. They offer individual solutions for personal power generation and consist of a small, experienced team that works with enthusiasm and expertise.

Solar & Photovoltaics
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Neukom Marzolo AG Logo

Neukom Marzolo AG 

Rafz · Since 1989

The core activity of Neukom Marzolo AG is the planning, installation, maintenance and repair of building technology systems, particularly in the areas of: solar systems, sanitary installations (kitchen and bathroom), heating systems, and ventilation and air conditioning systems. The company offers these services for new buildings, renovations and refurbishments, and targets companies and the public sector.

Solar & Photovoltaics
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NEU SOLAR AG Logo

NEU SOLAR AG 

Root D4 · Since 2022

The core activity of NEU Solar AG is the development and implementation of solar thermal energy projects, particularly in the areas of: generating heat energy from solar energy for various industrial processes; cooling systems based on absorption chillers driven by solar energy; desalination of water using solar energy; atmospheric water harvesting through solar energy; and storing excess solar energy for later use. The company aims to decarbonize industrial energy use and promote a sustainable future. It offers innovative solutions to industry to facilitate the transition to renewable energy.

Solar & Photovoltaics
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New Power Solutions SA Logo

New Power Solutions SA 

Grono · Since 2022

The core activity of New Power Solutions SA is the planning, implementation and maintenance of sustainable energy and climate systems for private households, including: photovoltaic systems, heat pump systems, air conditioning systems and storage batteries. The company offers its customers comprehensive solutions for the renovation of the energy budget, from consulting and planning to installation and maintenance, with the aim of promoting the energy independence and sustainability of households.

Solar & Photovoltaics
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nextE Holding AG Logo

nextE Holding AG 

Meggen · Since 2021

nextE Holding AG is a European independent power producer (IPP) focused on large-scale deployment of renewable energy infrastructure and carbon-neutral Energy-as-a-Service models. The company provides Energy-as-a-Service products and services including on-site and off-site renewable electricity generation, energy infrastructure development and asset management with commercial services such as power purchase agreements.

Energy SuppliersSolar & Photovoltaics
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NextGen CDR AG Logo

NextGen CDR AG 

Zurich · Since 2022

NextGen CDR AG operates a facility and portfolio that purchases certified carbon dioxide removals (CDRs) from technological projects. It aggregates demand from multinational buyers and applies ICROA‑endorsed certification standards across a diversified set of CDR approaches such as direct air capture, biomass carbon removal and storage, high‑temperature biochar, enhanced weathering and product mineralization.

Sustainability Sector
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Neyergie SA Logo

Neyergie SA 

Neyruz Fr · Since 2023

The core activity of Neyergie SA is the production and distribution of energy, particularly electrical energy through photovoltaics and thermal energy. The company supplies both private and public buildings with energy and offers consulting, financing and operation of energy projects.

Energy Suppliers
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Nieder ENERGIE Häuser GmbH Logo

Nieder ENERGIE Häuser GmbH 

Wichtrach · Since 2019

The core activity of Nieder ENERGIE Häuser GmbH is energy consulting and optimization for buildings, particularly in the creation of energy certificates (GEAK), planning and implementation of energetic renovations and new constructions, as well as consulting on the selection and implementation of energy-efficient solutions such as heat pumps, solar systems and ventilation systems.

Technical Consulting & EngineeringSustainability Sector
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Niemeyer Umwelt GmbH Logo

Niemeyer Umwelt GmbH 

Schafisheim · Since 2020

The core activity of Niemeyer Umwelt GmbH is consulting and project management in the field of nuclear waste disposal, remediation of contaminated sites and environmental protection. The company offers services such as environmental consulting, safety analyses, project management and communication with authorities and the public, with the goal of achieving a sustainable and environmentally friendly disposal of nuclear waste and the remediation of contaminated sites.

Waste Management Industry
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NIGGLI ANGUS GmbH Logo

NIGGLI ANGUS GmbH 

Samedan · Since 2020

The core activity of Niggli Angus GmbH is the breeding and distribution of Angus cattle, as well as the production of feed and the implementation of climate protection measures in the agricultural sector.

Sustainability Sector
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Nik Häne Fachlösungen für Heizungen und sanitäre Anlagen Logo

Nik Häne Fachlösungen für Heizungen und sanitäre Anlagen 

Dinhard · Since 2012

The core activity of Nik Häne includes the planning, installation, maintenance and repair of heating and sanitary systems, including solar and boiler services. The company also offers chemical descaling and sanitary repairs.

Solar & Photovoltaics
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NM Power Novalic Logo

NM Power Novalic 

Derendingen · Since 2009

The core activity of NM Power is the collection, purchase and recycling of scrap metals, particularly earth cables, electrical cables and other metal-containing waste, with the aim of reintroducing these raw materials into the cycle and thus making a contribution to environmental protection.

Waste Management Industry
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Nomali Suisse SA Logo

Nomali Suisse SA 

Grand-Lancy · Since 1985

Nomali Suisse SA is a building‑sector company providing consulting, installation and maintenance services for lighting, signage and energy systems. Its offerings include illuminated signage and storefront graphics, and the G‑EauSolAir division supplies heat pumps, photovoltaic and thermal solar systems, batteries and thermodynamic water heaters.

Solar & Photovoltaics
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NON-EXPLO WORLD Sàrl Logo

NON-EXPLO WORLD Sàrl 

Morges · Since 2018

The core activity of Non-Explo World Sàrl is the development, manufacture and application of controlled blasting systems for use in demolition and environmental protection, in particular the production of special blasting capsules (AUTOSTEM capsules) for the safe and efficient demolition of concrete and rock.

Sustainability Sector
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Nordur Power Grid Association Logo

Nordur Power Grid Association 

Bern · Since 2014

The core activity of the Nordur Power Grid Association is to promote cooperation and exchange between science, politics and economy in the field of renewable energies in order to bring about an energy transition and shape a sustainable energy future.

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.