Energy & Environment

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9'016 companies found

Metallia AG

Olten · Since 1980

The core activity of Metallia AG is scrap metal and metal recycling, skip service and disposal solutions as well as transport services. The company specializes in the trade of ferrous and non-ferrous metals and other waste materials and also offers services in the field of disposal and transportation.

Waste Management Industry

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Paul Weber AG

Liestal · Since 2003

Paul Weber AG provides services in sanitary, heating, ventilation and solar systems, covering planning, installation and maintenance. Offerings include bathroom renovation and 3D bathroom planning, water treatment and rainwater use, heating systems (oil/gas, heat pumps, pellets), controlled residential ventilation, solar thermal and photovoltaic installations, and pump/pressure systems.

Solar & Photovoltaics

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PRB Partnerschaft Recyclingplatz Boden AG

Cham · Since 2012

The core activity of PRB AG is the processing and recycling of mineral construction waste, such as concrete and mixed demolition waste, demolition asphalt and road excavation, into secondary building materials like RC concrete granulate, RC mixed granulate, RC asphalt granulate and RC grit sand. The company operates a central building material recycling center in the canton of Zug and aims to process around 150,000 m3 of material annually, increasing the share of mineral RC building materials in the total sales of gravel and gravel substitute materials.

Waste Management IndustryGlass, Ceramics, Stone & Construction Materials Industry

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Pronovo AG

Frick · Since 2017

The core activity of Pronovo AG is the collection of certificates of origin and the management of incentive programs for renewable energies.

Sustainability Sector

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Regiotherm AG

Romanshorn · Since 2001

The company is an energy supplier specializing in the provision of natural gas, biogas, and seawater heat. The core activities include gas procurement and distribution, network construction, maintenance and operation, as well as the provision of services such as heating service, heating repair, and safety checks. In addition, the company also offers products such as instantaneous water heaters and gas stoves.

Energy Suppliers

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Robert Naef SA

St-Triphon · Since 2015

The core activity of Robert Naef SA consists of planning, installing and maintaining systems in the following areas: * Water supply (Adduction eau): creation of private and municipal water networks as well as repairs * Sanitary (Sanitaire): planning and renovation of bathrooms and sanitary facilities * Heating (Chauffage): design and installation of heating systems with or without hot water supply for various types of buildings and energy sources * Solar (Solaire): installation of solar systems to cover the hot water needs in residential buildings.

Solar & Photovoltaics

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Roland Haldner GmbH

Sax · Since 1996

The core activity of Roland Haldner Haustechnik GmbH is the planning, execution and maintenance of building technology systems, particularly in the areas of heating systems, sanitary installations and solar systems. The company offers comprehensive solutions for new buildings and renovations and advises customers on the selection and installation of building technology systems. Additionally, the company carries out repair and maintenance work.

Solar & Photovoltaics

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Romain BARRAS SA

Lossy · Since 2014

The core activity of the company "La Ferme de Romain" encompasses agriculture, real estate, horse breeding or keeping, and the production of renewable energy through photovoltaics.

Sustainability Sector

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rundum energie GmbH

Rüti Zh · Since 2012

The core activity of the company "rundum energie gmbh" is energy consulting and planning for customers, particularly for small and medium-sized enterprises (SMEs). The services include building analyses, variant comparisons, consulting on heating, photovoltaics, e-mobility, building physics, Minergie and comfort ventilation. The company provides independent consulting and planning in energy matters to support customers according to their individual needs.

Technical Consulting & EngineeringSolar & Photovoltaics

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Sanhei AG

Zurich · Since 1970

The core activity of Sanhei AG encompasses services and solutions in the field of sanitary and heating technology, including: repairs, conversions, installation and maintenance of solar energy systems, installation and maintenance of heat pumps, and installation and maintenance of various heating systems, such as oil heating systems, gas heating systems, wood heating systems, and pellet 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.