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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

eco core GmbH Logo

eco core GmbH 

Basel · Since 2016

eco core GmbH develops and implements customized photovoltaic solutions that increase self‑consumption through rooftop and façade integration, battery storage, EV charging and smart‑home connectivity. The company provides analysis, planning, installation and financing services for residential, commercial and institutional PV systems.

Solar & Photovoltaics
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Ecoconsult Ritter Logo

Ecoconsult Ritter 

Basel · Since 2009

Ecoconsult Ritter provides strategic planning and implementation of environmental projects along with project management and advisory services. Services include risk concepts and assessments, environmental legal advice, coordination with third parties, client representation and mediation.

Management ConsultingSustainability Sector
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EcoDoggo KLG Logo

EcoDoggo KLG 

Strengelbach · Since 2024

The core activity of EcoDoggo is the development, manufacture and distribution of sustainable dog accessories, such as collars, harnesses, toys and accessories, made from high-quality materials that are both stylish and eco-friendly.

Sustainability Sector
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Eco Energie Etoy Société coopérative à Lully VD Logo

Eco Energie Etoy Société coopérative à Lully VD 

Lully Vd · Since 1960

The core activity of Eco Energie Etoy is the development and operation of photovoltaic systems for the production of renewable energy, particularly in the agricultural sector.

Solar & Photovoltaics
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Eco Energie Sàrl Logo

Eco Energie Sàrl 

Courtion · Since 2008

Eco Energie Sàrl plans, supplies and installs photovoltaic systems and heat pump solutions (air–water and geothermal), and provides maintenance and support services for private, commercial and public-sector clients.

Plumbing & Building ServicesSolar & Photovoltaics
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eco energie a plus ag Logo

eco energie a plus ag 

Hirschthal · Since 2010

eco energie a plus ag is an energy services provider offering design, installation and maintenance of photovoltaic systems, heat pumps, battery storage and e-mobility charging solutions. The company supports projects from analysis and project development through installation and commissioning to ongoing maintenance, and provides consultation, offers and references.

Solar & Photovoltaics
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Eco-Erg International AG Logo

Eco-Erg International AG 

Zug · Since 2017

The core activity of Eco-Erg International A.G. is the production and utilization of biomass from microalgae for various purposes, including: * Generation of renewable energy * Production of CO2-neutral products * Development of applications in the fields of cosmetics, pharmaceuticals, food and agriculture * Research and development in the field of microalgae technology The company focuses on the sustainable use of microalgae as a natural resource and aims to develop products and solutions that are environmentally friendly and economically viable.

Research & DevelopmentSustainability Sector
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ECOEXISTENCE - Robledo Abad Althaus Logo

ECOEXISTENCE - Robledo Abad Althaus 

Weesen · Since 2012

The core activity of EcoExistence is to provide services in the field of environment and sustainability, particularly in the areas of climate change, natural resources, environmental assessments and consulting. Specifically, this includes: Development of strategies to reduce greenhouse gas emissions and energy consumption; Environmental assessments and consulting for companies and organizations; Research and development in the field of sustainability and environmental protection; Consulting and support for the implementation of sustainability strategies; Development of nature-based solutions for climate change adaptation and mitigation; Conducting climate change vulnerability analyses and consulting; Development of guidelines and guides for the implementation of sustainability principles. The company also offers educational and research services, including supervision of master's and doctoral theses, as well as the development of children's books on environmental topics.

Sustainability Sector
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Eco-fit GmbH Logo

Eco-fit GmbH 

Nidau · Since 2022

The core activity of Eco Fit by Nicole Witschi is the creation of tailored and innovative solutions for the sustainable development of companies, organizations and public institutions, particularly in the areas of climate, energy and environment. This includes the development of strategies, concepts and projects to reduce environmental impacts, the creation of communication concepts and support in the implementation of sustainability projects.

Sustainability Sector
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Eco-FLY AG Logo

Eco-FLY AG 

Rolle · Since 2015

The core activity of Eco Fly AG is the sustainable dismantling and recycling of decommissioned aircraft, including the development of innovative approaches for the reuse of recycled materials.

Waste Management Industry
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EcoForce GmbH Logo

EcoForce GmbH 

Schötz · Since 2022

The core activity of ecoforce GmbH is the comprehensive consulting and support of companies in their transition to low-emission technologies and processes. This includes, in particular, the areas of mobility and transport, civil engineering, energy efficiency and battery storage systems. The company supports its customers in identifying optimal solution approaches, introducing alternative technologies and optimizing processes to achieve an emission-free future.

Sustainability Sector
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Eco Generation GmbH Logo

Eco Generation GmbH 

Baar · Since 2019

The core activity of eco generation is the distribution of sustainable and ecological products, particularly for young families, as a distributor throughout Switzerland.

Sustainability Sector
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ECOGEN Euthal Genossenschaft Logo

ECOGEN Euthal Genossenschaft 

Euthal · Since 2022

ECOGEN Euthal Genossenschaft operates a community district heating project that distributes renewable heat produced from residual wood from Sägerei Kälin AG via a pipeline network to homes and businesses. The cooperative organises financing, construction and operation of the heating network and offers connection and membership options with energy share certificates.

Energy Suppliers
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ECOGEN Stoos Genossenschaft Logo

ECOGEN Stoos Genossenschaft 

Stoos Sz · Since 2022

Energy Suppliers
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Ecogestion Solutions Environnementales Sàrl Logo

Ecogestion Solutions Environnementales Sàrl 

Neuchâtel · Since 2005

Ecogestion Solutions Environnementales Sàrl provides environmental services including investigation and remediation of contaminated sites, natural hazard mapping, construction and municipal waste management, material recovery, river revitalization, environmental impact studies, and life-cycle assessments. Implementation of measures is carried out in coordination with Mauler SA, civil engineers.

Waste Management Industry
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Ecogie Genossenschaft für die aktive Energiewende Logo

Ecogie Genossenschaft für die aktive Energiewende 

Thun · Since 2011

Ecogie Genossenschaft für die aktive Energiewende develops and operates photovoltaic installations, offers membership and investor participation in projects, and sells solar electricity.

Energy SuppliersSolar & Photovoltaics
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Eco-Huile Sàrl Logo

Eco-Huile Sàrl 

Etoy · Since 2022

The core activity of Eco-Huile is the collection and recycling of used cooking oils, particularly for restaurants and catering professionals. The company offers a tailored service that includes rapid and punctual collection, secure and leak-proof equipment, and the conversion of the oils into biodiesel. The goal is to protect the environment and contribute to a sustainable future.

Waste Management Industry
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ECOHZ AS, Oslo (Norvège), succursale de Nyon Logo

ECOHZ AS, Oslo (Norvège), succursale de Nyon 

Nyon · Since 2011

The company's core activity is to support businesses in the use of renewable energy and the reduction of CO2 emissions, particularly in the area of documentation and certification of renewable energy as well as compliance with regulatory requirements and voluntary standards such as CDP, SBTi and RE100.

Sustainability Sector
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eco-invention ag Logo

eco-invention ag 

Buochs · Since 2022

The core activity of eco-invention ag is the development and provision of innovative solutions for the photovoltaic industry, particularly in the field of mounting systems and concepts for PV installations.

Solar & Photovoltaics
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ecolabor GmbH Logo

ecolabor GmbH 

Lupsingen · Since 2019

The core activity of ecolabor GmbH is to support and accompany photovoltaic projects, battery storage solutions and future-proof building technology, particularly in the field of decentralized power generation and storage for single and multi-family homes. The company offers IT services such as IT consulting, IT project management and implementation of architecture transformations to support its customers in using cloud services and smart technology. In addition, it offers energy services, such as planning and implementation of photovoltaic projects and the implementation of battery storage solutions.

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.