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9'016 companies found

Fritz Zimmermann AG

Laupen Be · Since 2018

The company's core activity is the development, manufacture and marketing of solutions for the efficient use of energy, particularly in the areas of heating, cooling and renewable energies. This includes products such as heat pumps, photovoltaic systems, solar thermal systems, wood heating systems and smart home systems. The company also offers services such as consulting, planning and execution of projects in the field of building technology.

Sheet Metal WorkSolar & Photovoltaics

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Galli AG Sanitär Heizungen

Steffisburg · Since 1986

Galli AG Sanitär Heizungen is a plumbing and heating company providing installation, maintenance and repair services. It offers planning and execution services as well as aftercare for private customers, large clients, housing cooperatives and industrial/commercial businesses; services include sanitary installations, bathroom and kitchen renovations, water and wastewater piping, heating system replacement and solutions such as heat pumps, wood and pellet systems.

Solar & Photovoltaics

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Gebrüder Zuber AG

Glis · Since 1995

Gebrüder Zuber AG provides building-trade services including sanitary installations, sheet-metal roofing (Spenglerei) and flat and pitched roof work. Its services cover new-build and renovation projects, bathroom remodelling, pipe rehabilitation and the planning and installation of photovoltaic systems.

RoofingSheet Metal WorkSolar & Photovoltaics

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Genossenschaft Wintisolar

Winterthur · Since 2018

The core activity of Wintisolar is consulting, planning, designing and installing photovoltaic systems in the Winterthur region.

Solar & Photovoltaics

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G & O sunsolutions GmbH

Dietfurt · Since 2011

The core activity of G&O sunsolutions GmbH is the planning, execution and maintenance of solar technology systems, including photovoltaic systems, battery storage and energy management systems. The company also offers services such as roof renovation, contracting and e-mobility.

Solar & Photovoltaics

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Green Helvetia Sàrl

Martigny · Since 2020

The core activity of Green Helvetia is the planning, installation and maintenance of renewable energy systems, particularly photovoltaic systems, as well as providing solutions for energy efficiency and environmental protection. The company offers its customers a comprehensive range of services, including the installation of solar panels, maintenance and repair of existing systems, energy efficiency assessments and the implementation of solutions for storing renewable energy.

Solar & Photovoltaics

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Green Hockey AG

Zurich · Since 2022

The core activity of Green Hockey AG is the development and manufacture of sustainable ice hockey equipment, particularly ice hockey skates made from recycled materials such as ocean plastic, as well as promoting ice hockey as a sport by building artificial ice rinks and supporting ice hockey projects in various countries.

Sustainability Sector

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Guggisberg Kurz AG

Ostermundigen · Since 1989

The core activity of Guggisberg Kurz AG is the provision of services related to building technology solutions, particularly in the areas of: Sanitation, Heating, Solar Energy, Ventilation, and Air Conditioning. The company offers skilled craftsmanship services such as installation, maintenance, and renovation of systems like boilers and heat pumps, and takes care of providing materials for construction sites.

Solar & Photovoltaics

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Gurtner Haustechnik GmbH

Guntalingen · Since 2003

The core activity of Gurtner Haustechnik GmbH encompasses the planning, installation, and maintenance of building technology systems, particularly in the areas of: Sanitary installations (new construction and renovation), Heating installations, Solar technology (heat pump systems, PV systems, thermal solar systems), Roofing and sheet metal work, Sealing and coating. The company offers its customers comprehensive solutions for building technology, from planning to installation and maintenance, with a focus on innovative and ecological systems.

RoofingSheet Metal WorkSolar & Photovoltaics

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HKH Heizungen AG

Lucerne · Since 1972

HKH Heizungen AG provides planning, installation and maintenance of heating systems, together with repair and burner servicing, and carries out official combustion inspections. The company works with oil, gas, pellet/wood, heat pump and solar heating systems.

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.