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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

Energy Living Lab Logo

Energy Living Lab 

Sion · Since 2020

The core activity of Energy Living Lab Association is the application and dissemination of Living Lab approaches in the energy sector. This includes supporting an ecosystem of actors in using methods and tools to jointly develop solutions for the energy transition. The company's activities include: Research and development in the field of Living Labs and energy; Conducting interactive workshops and events; Consulting and supporting the application of Living Lab approaches; Developing and disseminating methods and tools for the energy transition; Networking and cooperation with actors from the public, private, state, academic sectors and civil society; Coordinating national programs and projects in the field of energy and sustainability; Developing governance structures and common visions for the energy transition. The company aims to create a platform for the joint development of solutions for the energy transition, taking into account the interests and needs of various actors.

Sustainability Sector
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energy protect GmbH Logo

energy protect GmbH 

Alpnach Dorf · Since 1997

The core activity of Energy Protect GmbH is consulting and implementing energy-saving measures for customers, particularly in the field of renewable energy. Specifically, this includes planning, installation, and maintenance of: photovoltaic systems for power generation, LED lighting systems for energy savings, and infrared heating systems for efficient heat generation. The company offers its customers comprehensive consulting and support from planning to implementation and beyond, with the goal of reducing energy costs and protecting the environment.

Solar & Photovoltaics
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Energy Risk Solutions GmbH Logo

Energy Risk Solutions GmbH 

Zug · Since 2015

The core activity of Energy Risk Solutions GmbH is the development and implementation of solutions for risk management in the field of energy and weather derivatives, particularly for companies in the renewable energy, traditional energy and natural gas sectors. This includes the origination of structured physical and financial transactions, the development of markets and strategies for customers looking to enter specific regions or products, as well as consulting and implementation of Corporate Power Purchase Agreements (CPPAs) and weather derivatives.

Sustainability Sector
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Energy Trade GP SA Logo

Energy Trade GP SA 

Lugano · Since 2023

The core activity of Energy Trade is the trading of gas and electricity on international markets, with a focus on optimizing energy costs and minimizing risks for its customers. To this end, Energy Trade offers tailored solutions for energy supply, including portfolio optimization, risk management, and the use of advanced technologies such as artificial intelligence and machine learning.

Energy Suppliers
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Energy Transformation GmbH Logo

Energy Transformation GmbH 

Hurden · Since 2022

The core activity of Energy Transformation GmbH is the development of climate-neutral business models and energy systems.

Sustainability Sector
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energy unlimited AG Logo

energy unlimited AG 

Mittelhäusern · Since 2008

energy unlimited AG designs, installs and services photovoltaic systems, solar thermal systems, battery storage and electric vehicle charging solutions for private, commercial and agricultural clients. The company provides consultation, system sizing, proposals and ongoing maintenance, as well as energy management services.

Solar & Photovoltaics
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Energy Trading & Service AG Logo

Energy Trading & Service AG 

Feusisberg · Since 2019

The core activity of Energy Trading & Service AG is the execution of energy trading and the provision of digitalized service solutions for the energy sector. Specifically, this includes the purchase and sale of energy as well as the development and provision of sales and service solutions for business and private customers.

Energy Suppliers
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energy unlimited AG Logo

energy unlimited AG 

Oberburg · Since 2022

energy unlimited AG designs, installs and maintains photovoltaic systems, solar thermal systems, battery storage and electric vehicle charging stations. The company serves residential, commercial and agricultural customers and provides consultancy on energy management and available subsidies.

Solar & Photovoltaics
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enerhub GmbH Logo

enerhub GmbH 

Dübendorf · Since 2018

The core activity of enerhub GmbH is the provision of consulting and project services in the areas of energy, environment, sustainability and politics.

Sustainability Sector
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EnerimpulsE SA Logo

EnerimpulsE SA 

Sementina · Since 2009

The core activity of EnerimpulsE is to provide independent consulting services in the field of energy efficiency and sustainability. Specifically, this includes supporting customers in addressing challenges related to energy and sustainable development, improving their performance, and accompanying them in the implementation of measures to increase energy efficiency and achieve sustainability goals.

Technical Consulting & EngineeringSustainability Sector
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enerminus Andreas Frölich Logo

enerminus Andreas Frölich 

Stäfa · Since 2008

The core activity of enerminus is comprehensive energy consulting and support for companies, projects and institutions, with the goal of promoting and implementing sustainable energy measures. This includes services such as energy planning, monitoring and management, overall analysis, variant studies, project organization, energy procurement, energy cost accounting and troubleshooting. The focus is on developing strategies and solutions for a sustainable energy future, particularly in the field of renewable energies and energy efficiency.

Sustainability Sector
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Enerphy Suisse AG Logo

Enerphy Suisse AG 

Zurich · Since 2022

Enerphy Suisse AG provides renewable energy services focused on solar installations, energy management and storage solutions. The company designs and installs photovoltaic systems for residential, agricultural and commercial customers, integrates battery and green-hydrogen storage and supports finance and investment models. It also offers carbon services including emissions quantification, carbon credits, CO2 utilization and geological CO2 storage.

Solar & Photovoltaics
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EnerSol Graf AG Logo

EnerSol Graf AG 

Aadorf · Since 2010

The core activity of EnerSol Graf AG is the planning, consulting and implementation of projects in the field of renewable energies, particularly photovoltaics, energy management, storage and heat/cooling systems. The company offers services such as energy concepts, expert opinions, monitoring and implementation of systems, as well as consulting and planning for the responsible use of non-renewable energy sources.

Solar & Photovoltaics
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Enerswiss AG Logo

Enerswiss AG 

Weinfelden · Since 2008

Enerswiss AG provides industrial metrology and technical building energy management services. The company carries out CT-based nondestructive 3D measurements (point clouds, CAD comparison, material inspection) and offers energy audits, system conversions and long-term operation of energy systems, while operating an integrated quality and environmental management system in accordance with ISO 9001 and ISO 14001.

Testing & Inspection CentersSustainability Sector
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Enfinit Sàrl Logo

Enfinit Sàrl 

Grand-Lancy · Since 2016

The core activity of Enfinit is to advise companies on the development of sustainable strategies and the implementation of projects in the field of energy transition and sustainability, particularly in the areas of renewable energies, energy efficiency and sustainable transportation systems.

Sustainability Sector
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Engadiner Kraftwerke AG Logo

Engadiner Kraftwerke AG 

Zernez · Since 1954

The core activity of Engadiner Kraftwerke AG is the production of electrical energy through the use of hydropower.

Energy Suppliers
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Solar Solutions EngCon GmbH Logo

Solar Solutions EngCon GmbH 

Kreuzlingen · Since 2020

The core activity of EngCon GmbH is the development, planning, construction and realization of turnkey photovoltaic systems, in particular rooftop and open-space systems in all power classes, as well as the associated services such as project planning, installation, material procurement, construction management and supervision.

Solar & Photovoltaics
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ENG, Erneuerbare Energie-Nutzungsgesellschaft AG Logo

ENG, Erneuerbare Energie-Nutzungsgesellschaft AG 

Krummenau · Since 2011

ENG, Erneuerbare Energie-Nutzungsgesellschaft AG plans, constructs and operates hydropower plants. It provides services such as preliminary studies, project planning and permitting, tendering, construction management and commissioning, as well as maintenance, operation and commercial management, with activities mainly in eastern Switzerland.

Technical Consulting & EngineeringEnergy Suppliers
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Engynious AG Logo

Engynious AG 

Baar · Since 2001

The core activity of Engynious AG is the planning, construction and maintenance of decentralized renewable energy systems, in particular photovoltaic systems, as well as the provision of services in the field of energy generation and management. This includes the development of projects, the planning and installation of PV systems, the technical and commercial maintenance of plants, the optimization of energy costs and yields, as well as the provision of solutions for the storage and use of renewable energy.

Solar & Photovoltaics
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Eniwa Wasser AG Logo

Eniwa Wasser AG 

Buchs Ag · Since 2000

Eniwa Wasser AG operates drinking-water services and feeds untreated groundwater into the distribution network. The company regularly monitors water quality, manages storage reservoirs and provides water connection and maintenance services for house connections, public fountains and hydrants.

Water Supply
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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.