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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

ASSISTECH Sàrl Logo

ASSISTECH Sàrl 

Monthey · Since 2019

The core activity of Assistech Sàrl is the treatment, disposal, recycling and recovery of sludges and other residues from wastewater treatment plants (STEP), construction sites and industries. This includes in particular: treatment of sewage sludge and wastewater sludge, treatment of construction site sludges, treatment of industrial sludges, dewatering of sludges and analysis of sludges. The company thus offers services in the field of sludge management and treatment.

Waste Management Industry
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Association Africa 21 Logo

Association Africa 21 

Geneva · Since 2011

The core activity of Africa 21 is to promote sustainable development in Africa by providing strategy consulting, research, communication and capacity building for governments, international organizations and other stakeholders. The company focuses on three thematic priorities: leadership, good governance and sustainable development, in order to have a measurable impact on the continent. Africa 21 offers services such as strategy development, implementation of research projects, creation of policy documents and organization of events to achieve the goals of sustainable development.

Sustainability Sector
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Association Apidae Logo

Association Apidae 

Satigny · Since 2017

Association Apidae works to protect bees and promote biodiversity. The association provides educational workshops and field activities, participates in scientific projects such as Arista, and runs adoption programmes ("Adopte une ruche") together with related product sales including honey.

Sustainability Sector
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Association Autovoltaïc Logo

Association Autovoltaïc 

Neuchâtel · Since 2021

The core activity of the company 'Autovoltaic' is the promotion and support of self-build projects for photovoltaic systems in the Neuchâtel region and its surroundings. The company provides a platform for members to support each other in the planning, implementation and installation of photovoltaic systems. The core activity thus includes the organization and coordination of self-build projects, the provision of information and resources, as well as the promotion of cooperation between members to increase the number of photovoltaic systems in the region.

Solar & Photovoltaics
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Association Compáz Logo

Association Compáz 

Neuchâtel 1 · Since 2018

The core activity of Compáz is to develop and promote innovative projects that drive technological and social innovation through artistic creation, with the aim of supporting social progress in Europe and beyond. This includes, in particular, the development of projects in the areas of intelligent buildings, rational energy transition and social progress, often in collaboration with European partners and within the framework of EU funding programs such as Horizon 2020.

Sustainability Sector
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Association ConnectSwiss Logo

Association ConnectSwiss 

Morges · Since 2010

The core activity of ConnectSwiss is the implementation of projects aimed at improving living conditions in rural communities in Kenya, particularly in the areas of education, health and access to clean water. The company focuses on supporting communities in implementing sustainable solutions that can be managed in the long term by the communities themselves or by local authorities.

Sustainability Sector
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Association des Amis de Plantons utile Logo

Association des Amis de Plantons utile 

Lutry · Since 2020

The company "Plantons Utile" offers expertise and consulting services in the fields of energy, environment, and sustainable development. The core activities include: Energy consulting: Support for optimizing energy consumption and efficiency, Environmental consulting: Expertise in urban greening, biodiversity, and sustainable development, Sustainable development: Support for implementing projects that protect the environment and promote sustainable development. The company also supports international projects, such as reforestation and promoting sustainable agriculture in developing countries.

Sustainability Sector
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Association ECOTECHSY, Pôle suisse d'Ecotechnologies, développement durable et génération d'emploi Logo

Association ECOTECHSY, Pôle suisse d'Ecotechnologies, développement durable et génération d'emploi 

Chêne-Bourg · Since 2006

The core activity of ECOTECHSY is the development and implementation of projects in the field of sustainable development, environmental protection, and renewable energy. Specifically, this includes: * Developing solutions for optimizing resource use and reducing greenhouse gas emissions * Promoting renewable energy and developing technologies for sustainable energy supply * Preserving biodiversity through projects protecting ecosystems and endangered species * Implementing projects in various countries, such as in Africa and Colombia, to achieve the Sustainable Development Goals (SDGs) In particular, the company focuses on developing solutions for the following areas: * Access to clean water and sanitation * Access to sustainable energy * Preservation of marine biodiversity * Reduction of poverty and promotion of sustainable development The company sees itself as a partner for a sustainable future and aims to contribute to achieving the Sustainable Development Goals through its activities.

NGOs & NPOsSustainability Sector
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Association fribourgeoise des agriculteurs pratiquant une agriculture respectueuse de l'environnement et des animaux (AFAPI) Logo

Association fribourgeoise des agriculteurs pratiquant une agriculture respectueuse de l'environnement et des animaux (AFAPI) 

Posieux · Since 1998

The core activity of AFAPI - FIPO is the implementation of inspections and controls in the field of agriculture, particularly with regard to compliance with environmental and animal welfare standards. The company offers services such as the inspection of agricultural farms, the control of production processes and the certification of products. The goal is to ensure compliance with quality and environmental standards in agriculture and to provide transparency and security to farmers and consumers.

Sustainability Sector
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Association Jardin-Forêt Suisse (AJFS) Logo

Association Jardin-Forêt Suisse (AJFS) 

Coppet · Since 2024

The core activity of the company 'Jardin-Forêt Suisse' is the promotion and support of agroforestry, syntropic agriculture and sustainable gardening and forestry. The company offers services such as consulting, education, workshops and volunteer projects to support people in implementing sustainable projects. It also promotes the dissemination of knowledge and experience in the field of agroforestry and syntropic agriculture through blog posts, conferences and other events.

Sustainability Sector
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Association l'Ecurie des Vues Logo

Association l'Ecurie des Vues 

Coppet · Since 2011

The core activity of the company "Ecurie des Vues" consists of carrying out waste and recyclable materials collections with horse-drawn carriages in various municipalities (Commugny, Coppet, Founex and Tannay). The company also offers the possibility to become a member or make donations to support its activities.

Waste Management Industry
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Association Printemps d'abeilles Logo

Association Printemps d'abeilles 

Geneva · Since 2021

The core activity of the company "Printemps d'abeilles" is the protection and promotion of bees and other pollinators in Switzerland. To this end, the company offers various services, including: * The installation and maintenance of beehives on company premises or in public spaces * The organization of activities and workshops for companies, schools and private individuals to raise awareness of the importance of bees and other pollinators * The sale of bee products, such as honey, and other items related to beekeeping * The support of environmental protection projects and the promotion of sustainable practices in agriculture and horticulture. The company also works with partners to promote the diversity of plants and animals in Switzerland and to educate the public about the importance of bees and other pollinators.

Sustainability Sector
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Association RACINES Logo

Association RACINES 

Gimel · Since 2022

The core activity of the company 'Racines' consists of organizing and implementing activities aimed at supporting people, particularly those benefiting from social assistance or disability insurance or with a migration background, in promoting their social integration and self-discovery through work in a garden and participation in a collective project. This is achieved through the maintenance of a garden, the promotion of biodiversity, and collaborative work in a safe and dynamic environment.

Sustainability Sector
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Association Resonantz Logo

Association Resonantz 

Fribourg · Since 2022

Sustainability Sector
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Association Sun-Power (ASP) Logo

Association Sun-Power (ASP) 

Bernex · Since 2007

The core activity of Sun-Power is the promotion and implementation of projects for the use of solar energy, in particular through the construction of photovoltaic systems on rented roofs, in order to enable broad participation in renewable energy production.

NGOs & NPOsSolar & Photovoltaics
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AS sol GmbH Logo

AS sol GmbH 

Wolfwil · Since 2024

AS sol GmbH is an energy consultancy that plans and installs photovoltaic systems and provides excavator rental services. The company also offers advisory services on energy efficiency.

Rental of Machinery & EquipmentTechnical Consulting & EngineeringSolar & Photovoltaics
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ASS Sustainability Solutions SA Logo

ASS Sustainability Solutions SA 

Geneva · Since 2023

ASS Sustainability Solutions SA is a consultancy for sustainable finance and carbon neutrality services that connects investors with sustainable development projects and provides sustainable investment strategies and impact monitoring. Its services include structuring and issuance of sustainable financial instruments (e.g. green and sustainability bonds), carbon footprint assessments, GHG reduction planning, and carbon credit development and trading.

Sustainability Sector
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ASTE Group Swiss AG Logo

ASTE Group Swiss AG 

Stans · Since 2012

The core activity of Aste Group is the development, manufacturing and marketing of products for renewable energy, particularly batteries, solar modules and other innovative solutions for sustainable energy supply.

Solar & Photovoltaics
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AST Eissport- und Solaranlagenbau AG Logo

AST Eissport- und Solaranlagenbau AG 

Herisau · Since 1991

The core activity of AST Eis- und Solartechnik GmbH is the planning, development and realization of ice rink and solar technologies, including the manufacture and distribution of ice rinks (mobile and stationary), solar systems, artificial turf heating systems, outdoor pool heating systems and heat pumps. The company also offers solutions for ice hockey, inline hockey and recreational facilities and has a comprehensive portfolio of products and services in this area.

Solar & Photovoltaics
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ASTOG-Energy GmbH Logo

ASTOG-Energy GmbH 

Appenzell · Since 2022

The core activity of ASTOG-Energy GmbH is the production of Sustainable Aviation Fuel (SAF) through the conversion of municipal solid waste (MSW) into an environmentally friendly and economically sustainable aircraft fuel.

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.