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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,378 companies indexed · Last updated: today
DirectoryEnergy Industry

Energy Industry

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1'465 companies found

Heiga AG Logo

Heiga AG 

Otelfingen · Since 2003

The core activity of HEIGA AG is the development, manufacture and distribution of energy-saving boilers and buffer tanks, particularly made of stainless steel, for use in heating and cooling systems.

Energy IndustryMechanical Engineering Industry
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HELIOS ENERGY EM AG Logo

HELIOS ENERGY EM AG 

Zug · Since 2008

HELIOS ENERGY EM AG provides consulting services for commodity trading, focusing on natural gas, crude oil, petroleum products, metals and rare earths. Services include process consulting for trade execution, supplier and customer assessment, financing advice, and provision of IT solutions and managed services such as data centre operations, networking, e-mail services and IT security.

Energy Industry
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Hi Energy AG Logo

Hi Energy AG 

Zug · Since 2020

The core activity of HI ENERGY AG is the development and implementation of sustainable, cost-effective and fail-safe energy sources through the use of geothermal energy. The company offers a turnkey solution for energy supply based on an open geothermal borehole (OEWS) that utilizes convective heat transport to extract heat from the earth's crust. The core activities include consulting, geothermal resource assessment, feasibility studies, regulatory consulting, site selection and the implementation of energy concepts that are decentralized, emission-free, location-independent and low-maintenance.

Energy Industry
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hiLyte Sàrl Logo

hiLyte Sàrl 

Neuchâtel · Since 2018

The core activity of hiLyte is the development and provision of innovative, clean, affordable and reliable energy solutions for remote communities in Africa, particularly in Tanzania. The company focuses on the manufacture and distribution of energy products, such as the 'hiLyte-Cubes', which enable end-users to light their homes and charge their phones.

Energy Industry
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Hirter & Vögeli GmbH Logo

Hirter & Vögeli GmbH 

Konolfingen · Since 2022

Hirter & Vögeli GmbH sells foodstuffs, culinary specialties and gift items through an online shop. The product range includes spices, bouillons and soups, sauces, herbs, pasta, rice, oils and vinegars, spreads, dried fruits and chocolates, as well as gift ideas and packaging.

Energy Industry
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Hitachi Energy AG Logo

Hitachi Energy AG 

Zurich · Since 2018

Energy Industry
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HME - Technologies GmbH Logo

HME - Technologies GmbH 

Solothurn · Since 2010

The company's core activity consists of the development, manufacture and distribution of products and components in the following areas: 1. Magnets and magnetic materials 2. Special and rare metals and alloys 3. Components for renewable energy systems, including batteries, inverters and solar panels 4. Power supply systems, including UPS systems (uninterruptible power supply) The company also offers consulting services for the selection and optimization of products.

Energy Industry
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Holzenergie Ersigen GmbH Logo

Holzenergie Ersigen GmbH 

Ersigen · Since 2007

The core activity of Holzenergie Ersigen GmbH is the production and logistics of wood chips as well as the operation of wood chip heating systems.

Energy Industry
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Hy24 (Switzerland) AG Logo

Hy24 (Switzerland) AG 

Zurich · Since 2022

The core activity of Hy24 is investing in and developing projects and companies in the hydrogen economy, particularly in the production, storage, distribution and use of green hydrogen for the decarbonization of industries and transport sectors.

Energy Industry
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Hybridbox AG Logo

Hybridbox AG 

Eschlikon Tg · Since 2020

The company's core activity is the development, delivery and maintenance of innovative energy solutions, in particular the Hybridbox, a multifunctional energy center that produces heat, electricity and cooling in a decentralized manner, thus enabling a sustainable and efficient energy supply for buildings and industry.

Energy Industry
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H2ValSmart Sàrl Logo

H2ValSmart Sàrl 

Ropraz · Since 2021

The core activity of H2Valais is the development and provision of solutions for hydrogen mobility, particularly for freight transport. This includes the development and operation of production, storage and distribution systems for hydrogen, including the use of electrolysers and Vanadhy technology. In addition, the company offers engineering services for the development of hydrogen-related processes for residential and industrial buildings.

Energy Industry
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Hydro Operation International SA Logo

Hydro Operation International SA 

Lausanne · Since 2014

The company's core activity is the transformation of hydroelectric energy in Africa by providing services in the areas of: Operation and Maintenance (E&M) of hydroelectric plants, Project Management, Asset Management, Rehabilitation of power plants, Specialized Engineering Services, and Training and Knowledge Transfer. The company focuses on long-term maintenance and operation of hydroelectric plants in Africa to ensure a reliable and sustainable energy supply.

Technical Consulting & EngineeringEnergy Industry
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Hydro-Solar Energie AG Logo

Hydro-Solar Energie AG 

Niederdorf · Since 1991

Hydro-Solar Energie AG provides engineering and turnkey planning services for small hydropower and drinking-water power plants. Services include overall project planning, construction and installation management, water and energy consultancy, supply and installation of inflatable-weir systems, and design of fish migration and fish-protection facilities.

Energy Industry
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ICARE Procurement Services SA Logo

ICARE Procurement Services SA 

Fribourg · Since 2011

ICARE Procurement Services SA is a professional services firm that specialises in delivering procurement solutions to international corporations, focusing on capital equipment project structuring, strategic sourcing, tendering and contract negotiation for the energy and oil & gas sectors. It also provides back‑office goods and services procurement optimisation, business process re‑engineering, transactional procurement services and global supplier qualification and order execution support.

Energy Industry
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INERSO GmbH Logo

INERSO GmbH 

Wetzikon Zh · Since 2022

The core activity of INERSO GmbH is the development and industrialization of energy technologies as well as strategic consulting for their commercial use.

Energy Industry
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INERGIO Technologies SA Logo

INERGIO Technologies SA 

Chexbres · Since 2020

The core activity of INERGIO Technologies SA is the development and manufacture of advanced fuel cell-based power generators that deliver clean, reliable and efficient electricity, independent of grid supply and weather conditions.

Energy Industry
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inesco AG Logo

inesco AG 

Solothurn · Since 2010

inesco AG develops and supplies sodium-ion battery energy storage systems, offering modular storage solutions for residential, commercial, industrial and agricultural applications. Products include sodistore home, sodistore pro and retrofit exchange kits; systems are assembled in cooperation with partners.

Technical Consulting & EngineeringEnergy Industry
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iNET ENERGETIX AG Logo

iNET ENERGETIX AG 

Wil Sg · Since 1983

The core activity of iNet Global Wil, Switzerland, is providing services in the field of renewable energy, particularly in the solar industry. The company offers financial and technical services to support companies and investors in the development and implementation of solar projects.

Energy Industry
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Inocel SA Logo

Inocel SA 

Puidoux · Since 2021

Inocel SA develops and supplies zero-emission hydrogen fuel-cell generators and integrated energy solutions for off-grid, backup and mobile power applications. The company offers modular GEN‑Z generator models (e.g. GEN‑Z 300/600/1300), a 300 kW fuel-cell stack, and end-to-end services covering fuel supply, installation, monitoring and maintenance.

Licensing & Marketing of Intellectual PropertyResearch & DevelopmentEnergy Industry
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Interessengemeinschaft Kleinwasserkraft Glarnerland (KWK Glarnerland) Logo

Interessengemeinschaft Kleinwasserkraft Glarnerland (KWK Glarnerland) 

Linthal · Since 2010

Interessengemeinschaft Kleinwasserkraft Glarnerland (KWK Glarnerland) advocates for environmentally friendly electricity generation from renewable sources and represents the interests of small hydropower operators in political and legal matters. The association coordinates members' concerns, engages in concession and planning procedures, and provides information on hydropower plants and projects in the Glarnerland.

Energy 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.
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