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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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IndustryEnergy & Environment
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9'016 companies found

Nachhaltiges Bauen Burmeister (NBB) Logo

Nachhaltiges Bauen Burmeister (NBB) 

Balgach · Since 2018

The core activity of "Nachhaltiges Bauen Burmeister" is to advise and support customers in the planning, construction and modernization of buildings with the goal of implementing sustainable and energy-efficient solutions. The specific activities include: energy consulting and planning, creation of energy certificates and building modernization concepts, execution of BlowerDoor tests for air tightness of the building envelope, analysis and consulting on pollutants and condensation formation, support in applying for funding, quality management and consulting on sustainable building materials and methods.

Sustainability Sector
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Nano Trace Technologies GmbH Logo

Nano Trace Technologies GmbH 

Jens · Since 2006

Sustainability Sector
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Nanovis GmbH Logo

Nanovis GmbH 

Illnau · Since 2005

The core activity of Nanovis GmbH is the development and manufacture of cleaning technologies and products for the printing industry, particularly for the cleaning of parts and machines in print production, with a focus on environmentally friendly and sustainable solutions.

Sustainability Sector
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Narat B.V., Amsterdam, succursale de Genève Logo

Narat B.V., Amsterdam, succursale de Genève 

Geneva · Since 2022

The core activity of Narat is the physical trading of certified sustainable biofuels and their feedstocks, particularly biodiesel and its waste-based feedstocks. The company also develops tailored strategies to reduce greenhouse gas emissions and provides logistics and financial services to support the delivery of biofuels and feedstocks to its customers.

Sustainability Sector
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NASKA GmbH Logo

NASKA GmbH 

Zurich · Since 2004

The core activity of NASKA GmbH is the consulting and implementation of sustainable solutions in the field of building and real estate, including project controlling, training and strategy consulting for companies and institutions.

Management ConsultingSustainability Sector
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Natao Pia Bieri Logo

Natao Pia Bieri 

Schenkon · Since 2019

The core activity of NATAO is the development, manufacture and distribution of sustainable products, in particular beeswax cloths, berry wax cloths, Wy-bags and jewelry, all of which are produced in Switzerland.

Sustainability Sector
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Nategra GmbH Logo

Nategra GmbH 

Bern · Since 2014

The core activity of Nategra is the integral management of natural resources. This includes planning, implementation, monitoring and evaluation of environmental projects, particularly in the areas of ecological infrastructure, green and open space provision, wildlife connectivity and resource potentials. Additionally, Nategra offers services such as business analysis, implementation and monitoring concepts, interactive documentation, specialist planning, implementation support, success control and monitoring. Furthermore, the company uses modern technologies and analysis methods to evaluate remote sensing data and enable fact-based decision-making.

Sustainability Sector
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nateco ag Logo

nateco ag 

Gelterkinden · Since 2000

The core activity of Nateco AG is to provide services and consulting in the field of ecological infrastructure, environmental planning and sustainable development. Specifically, this includes the areas of: wind energy, green space management, biodiversity for real estate portfolios, urban climate, natural inventory, ecological infrastructure, and digital solutions for sustainable green space management (natINFO). The company develops and implements solutions that meet both ecological requirements and business management demands.

Technical Consulting & EngineeringSustainability Sector
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Natraction Ursina Wüst Logo

Natraction Ursina Wüst 

Sargans · Since 2020

The core activity of Natraction is the organization and implementation of activities and events in nature, focusing on sustainability, biodiversity and environmental awareness.

Sustainability Sector
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NATUME büro für natur umwelt mensch - claudia friedl Logo

NATUME büro für natur umwelt mensch - claudia friedl 

St. Gallen · Since 2007

The company natume - claudia friedl - office for nature environment human primarily deals with services in the field of environment and sustainability, particularly in the areas of nature conservation, environmental consulting and planning.

Sustainability Sector
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NATURA biologie appliquée SA Logo

NATURA biologie appliquée SA 

Les Reussilles · Since 2008

The core activity of Natura Biologie Appliquée SA is the provision of services in the field of environmental consulting and planning. Specifically, this includes: inventory of natural habitats, environmental impact assessments, creation of biotopes, agro-ecology, development of environmental management plans, communication and consulting in the field of environmental protection, protection of fauna and traffic, landscape and territorial planning, renaturation of water bodies, and soil protection. The company thus offers a wide range of services aimed at protecting the environment and developing sustainable solutions to environmental problems.

Sustainability Sector
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NATURAndrey GmbH Logo

NATURAndrey GmbH 

Bern · Since 2017

The core activity of NATURAndrey GmbH is the implementation of projects in the environmental sector, particularly in the areas of nature and environmental protection. Managing Director Christa Andrey offers various services, including: excursions and courses on topics such as butterflies, amphibians, reptiles, and grasshoppers; identification courses for different species of animals and plants; field botany and vegetation analysis; and promotion of spring habitats and control of invasive neophytes. The company also collaborates with various partners and experts to carry out environmental projects.

Sustainability Sector
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naturaqua PBK AG Logo

naturaqua PBK AG 

Bern · Since 2000

The core activity of Naturaqua PBK encompasses a wide range of services in the field of environmental and landscape planning, including: Biodiversity and species conservation, Watercourse planning, Flood protection, Ecological compensation and replacement, Revitalization, Landscape and open space planning, Settlement and urban development, Communication consulting and public relations, Moderation and participation, Geoinformatics (GIS) and mapping. The company offers solutions from a single source and has a strong network and extensive expertise in these areas.

Sustainability Sector
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natura solar AG Logo

natura solar AG 

Appenzell · Since 1989

The core activity of natura solar AG is the planning, development and installation of photovoltaic systems for commercial, agricultural and real estate applications, with the aim of creating efficient and sustainable energy supply solutions. This also includes consulting, building permit applications, budgeting and the installation of battery storage solutions.

Solar & Photovoltaics
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Natura Zone Sàrl Logo

Natura Zone Sàrl 

Bex · Since 2020

The core activity of Natura Zone Sàrl is the importation and distribution of organic and ecological brands in Switzerland.

Sustainability Sector
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Naturclean GmbH Logo

Naturclean GmbH 

Kriens · Since 2002

The company's core activity is the development, manufacture and distribution of cleaning technologies, particularly steam cleaners based on the use of water and heat to enable environmentally friendly and health-promoting cleaning.

Sustainability Sector
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NaturDienst Bieri Logo

NaturDienst Bieri 

Richenthal · Since 2022

The core activity of NaturDienst Bieri is the promotion and protection of biodiversity through consulting, excursions, awareness-raising measures, and educational offers. Specifically, this includes: biodiversity promotion consulting, conducting excursions and guided tours in protected areas and natural habitats, awareness-raising measures for nature and its values, educational offers such as nature courses and school lessons, and operating a shrub garden with native diversity. The company provides these services to promote biodiversity and protect and preserve nature.

Sustainability Sector
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Natur Energie Kaltbrunn AG Logo

Natur Energie Kaltbrunn AG 

Kaltbrunn · Since 2005

Natur Energie Kaltbrunn AG owns small hydropower plants and produces renewable electricity from hydropower. Elektrizitätsversorgung Kaltbrunn AG (EVK) serves as the operator for the Wilen and Bruggmühle plants.

Energy Suppliers
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natürlich schoch Logo

natürlich schoch 

Waldstatt · Since 2019

The core activity of the company "natürlich schoch Ökobüro" is consulting, species promotion, monitoring and environmental education in the field of biodiversity. The company supports cantons, municipalities, organizations and private individuals in projects promoting biodiversity and offers services such as consulting, monitoring and environmental education to promote nature and diversity.

Sustainability Sector
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NaturLoop AG Logo

NaturLoop AG 

Biel/Bienne · Since 2020

The core activity of NaturLoop is the development and manufacture of sustainable biocomposites, in particular Cocoboard, a natural panel made from coconut shell fibers, suitable for furniture and interior architecture.

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.