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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

Elektro Seitz AG Logo

Elektro Seitz AG 

Kreuzlingen · Since 2018

The core activity of Elektro Seitz AG encompasses a wide range of services in the fields of electrical engineering and communication technology. The main activities include: electrical installations, telematics and IT/network technology, fault clearance services for Swisscom and other providers, installation and maintenance of security and alarm systems, video intercom systems, electrical planning and lighting consulting, switchgear and photovoltaics, household appliance service and eMobility, and 24-hour emergency service. The company thus offers a comprehensive range of services for private and business customers in the fields of electrical engineering and communication technology.

Solar & Photovoltaics
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Elektro Unfried GmbH Logo

Elektro Unfried GmbH 

Neukirch (Egnach) · Since 2008

The core activity of Elektro Unfried GmbH encompasses consulting, planning and execution of electrical installations in the field of high/low voltage and photovoltaic systems, as well as the sale and installation of household appliances.

Solar & Photovoltaics
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Elle'n'Belle AG Logo

Elle'n'Belle AG 

Bern · Since 2013

The core activity of Elle'n'Belle is the promotion and dissemination of a vegan lifestyle through various services such as nutrition consulting, workshops, events, private kitchen parties and projects.

Sustainability Sector
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ELUTEC AG Logo

ELUTEC AG 

Glis · Since 2005

Technical Consulting & EngineeringSustainability Sector
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ELVEDIR AG Logo

ELVEDIR AG 

Herisau · Since 2006

Sustainability SectorWholesale - General Specialty Trade
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DUSSAND AG Logo

DUSSAND AG 

Zurich · Since 2008

The core activity of ENDEQ Corporate Finance is the provision of advisory and management services in the field of corporate finance, particularly in the areas of: * Capital raising (Equity Raising, Debt Financing, Project Finance, Trade Finance) * Mergers & Acquisitions (Company purchases and sales) * Business Development (Company development and strategy) * Transaction services (Business Brokerage, M&A consulting, Company transfer) The company supports its clients in structuring, executing and completing corporate transactions and initiatives, particularly in the regions of Latin America, Africa and Asia-Pacific.

Construction & Project ManagementSustainability SectorReal Estate Project Development
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ENERDIS Approvisionnement SA Logo

ENERDIS Approvisionnement SA 

Gland · Since 2008

Energy Suppliers
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Energaudit.ch - Michael Hansen Logo

Energaudit.ch - Michael Hansen 

Yvonand · Since 2022

The core activity of Energaudit.ch is to provide services in the field of energy efficiency and sustainable building. This includes in particular: energy audits and analyses for buildings and companies, consulting and planning of energy efficiency measures, implementation of energy certifications (CECB, CECB+, Minergie), optimization of heating and cooling systems, consulting on the selection and implementation of renewable energies, support in applying for subsidies for energy efficiency measures, and monitoring and optimization of energy consumption and costs. The company offers its services primarily to property owners, companies, and public institutions in the Yverdon-les-Bains region and surrounding areas.

Sustainability Sector
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Energie am Bachtel AG Logo

Energie am Bachtel AG 

Dürnten · Since 2015

Energy Suppliers
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EnergieKonzept Ryser GmbH Logo

EnergieKonzept Ryser GmbH 

Seftigen · Since 2022

The core activity of EnergieKonzept Ryser GmbH is the planning, implementation and operation of renewable energy plants, particularly photovoltaics and hydropower, as well as the optimization of self-consumption and electromobility.

Energy Suppliers
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Energie-Lösung AG Logo

Energie-Lösung AG 

Interlaken · Since 2022

Solar & Photovoltaics
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Energie Rinnovabili Losone (ERL) SA Logo

Energie Rinnovabili Losone (ERL) SA 

Losone · Since 2008

Energie Rinnovabili Losone (ERL) SA is a company that designs, constructs, implements and operates plants for the production and sale of thermal and electrical energy from renewable sources. It develops wood‑chip boiler installations and district‑heating networks to supply industrial, public and private customers.

Energy Suppliers
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energieumdenken.ch GmbH Logo

energieumdenken.ch GmbH 

Stallikon · Since 2023

energieumdenken.ch GmbH provides planning, consulting and installation services for heat pumps, photovoltaic and solar-thermal systems, and energy-efficiency upgrades. Services include noise-impact assessments, sound-reduction and design housings for heat pumps, and plug-and-play PV solutions with battery storage.

Technical Consulting & EngineeringSolar & Photovoltaics
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EnergieVerte Swiss Sàrl Logo

EnergieVerte Swiss Sàrl 

Attalens · Since 2021

The core activity of EnergieVert Swiss sàrl is to provide consulting services to companies in the areas of corporate consulting, energy consulting, and energy transition. Specifically, this includes: Corporate consulting: strategy consulting, process optimization, change management, and project management. Energy consulting: advice on renewable energies, particularly photovoltaics, and energy efficiency. Energy transition: support for the transition to renewable energies and reduction of the CO2 footprint. The company also offers services such as project management, mandate management, and administrative support.

Electrical Planning & InstallationSolar & Photovoltaics
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Energiewender GmbH Logo

Energiewender GmbH 

Ittigen · Since 2021

The core activity of the company "Der Energiewender GmbH" is the planning, consulting, installation and maintenance of photovoltaic systems for various customers, including single-family homes, multi-family homes, schools, commercial and industrial buildings, as well as agricultural businesses. The company also offers additional services such as combining photovoltaic systems with energy storage systems, heat pumps, charging stations for electric mobility and intelligent charging stations.

Solar & Photovoltaics
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Energotech AG Logo

Energotech AG 

Zug · Since 1976

Technical Consulting & EngineeringSolar & PhotovoltaicsWholesale - Machinery & Technical Equipment
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Energy PyroSwiss SA Logo

Energy PyroSwiss SA 

Lussery-Villars · Since 2017

The core activity of Energy PyroSwiss is the development and application of technologies to convert waste and non-recyclable materials into energy and valuable products. In particular, the company focuses on the following activities: * Converting non-recyclable plastics into fuels (plastic to fuel) * Processing old tires into activated carbon or fuels * Producing biochar, a material that improves soil fertility and water retention in agriculture * Producing activated carbon * Treating household waste and producing energy from it * Processing fiber materials to obtain recyclable fibers * Planting Moringa plants The company uses various technologies such as thermolysis, pyrolysis, and cogeneration to ensure environmentally friendly and efficient energy production.

Sustainability Sector
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Energysolution KlG Logo

Energysolution KlG 

Mägenwil · Since 2022

Solar & Photovoltaics
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ENERGY STORM SUISSE SA Logo

ENERGY STORM SUISSE SA 

Mendrisio · Since 2008

Energy Storm Suisse SA is a provider of products and services in the fields of energy efficiency, safety and mobility. The core activities include the sale of: energy efficiency products such as LED lighting, solar panels and batteries; security products such as video surveillance systems and alarm systems; mobility products such as e-bikes, scooters and other electric vehicles; car accessories such as AdBlue, additives and car care products; and services such as battery replacement, installation of telecameras and energy efficiency consulting. The company offers its products and services to both private and commercial customers, with a focus on energy efficiency and sustainability.

Sustainability Sector
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Engelprächtigen AG Logo

Engelprächtigen AG 

Ufhusen · Since 2020

The core activity of Engelprächtigen AG is the operation of a landfill for the disposal of approved materials in accordance with Annex 5 of the applicable Waste Management Ordinance VVEA.

Waste Management Industry
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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.