3'202 companies found
VOLTA ENERGIE RINNOVABILI SA
Agno · Since 2023
The core activity of Volta Energie Rinnovabili SA is the planning, installation and maintenance of photovoltaic systems for private and commercial customers. The company offers comprehensive services, including assessing the suitability of roofs for the installation of solar modules, creating projects, applying for permits and certifications, as well as performing regular maintenance work to ensure the efficiency and performance of the installed systems.
Wäger AG
Waldkirch · Since 2011
The company's core activity includes the planning, installation and maintenance of photovoltaic systems, electrical engineering, network construction and water supply. The company also provides consulting and support services to customers in these areas.
Wasser & Wärme Steiner AG
Ringgenberg Be · Since 2014
The core activity of Wasser & Wärme Steiner AG is the planning, installation and consulting of systems in the sanitary and heating sector, including the treatment of water as a heat carrier and the generation of space heat.
Weibel AG Bedachungen Fassadenbau
St. Gallen · Since 1978
The company provides services and products in the field of roof and facade construction, including thermal insulation, energy efficiency, renovation, repair and maintenance of roofs and facades, as well as specialized services such as green roofing, snow retention and snow removal.
Welatec Beratende Ingenieure AG
Interlaken · Since 1994
The core activity of Welatec is independent energy and building technology planning, particularly in the areas of heating, ventilation, air conditioning, refrigeration and sanitation. The company offers customized solutions for its customers and focuses on the planning and optimization of building technology systems.
Wenger Bedachungen AG
Fahrni B. Thun · Since 1999
The core activity of Wenger Spenglerei Bedachungen AG is the execution of sheet metal work and roofing, including related services such as consulting, planning and implementation of work on roofs, facades, insulation, solar systems and photovoltaics.
ZAGSOLAR AG
Kriens · Since 2011
The core activity of ZAGSOLAR is the planning, design, tendering and commissioning of photovoltaic systems.
Zaun- und Torsysteme AG
Kappel So · Since 2018
The core activity of Zaun- und Torsysteme AG is the planning, installation, repair and maintenance of fence and gate systems, including sight and noise protection, solar fences, animal husbandry, handrails and railings, as well as the sale of fence materials. The company also offers personal consulting and specialized installation services, focusing on the needs of private customers in the home and garden sector.
ZENNA AG
Murg · Since 2012
The core activity of ZENNA AG is the consulting, planning and implementation of solar and storage projects, including the execution of feasibility studies, analyses, design, tendering, project management and supervision in the field of renewable energies.
SB SolarTech & Bauunternehmung GmbH
Hölstein · Since 2025
The core activity of SB SolarTech & Bauunternehmung GmbH encompasses the planning and realization of construction projects throughout Switzerland, particularly in the area of installation and assembly of photovoltaic systems, as well as the provision of services in the field of energy efficiency consulting, environmental work, and civil and garden construction.
Hélios Energies SA
Carouge Ge · Since 2012
The core activity of Helios Energies is the installation of photovoltaic solar panels and heat pumps for private and commercial customers in the cantons of Geneva and Vaud in Switzerland. The company also provides consulting services and maintenance work for these systems.
sanitärheizig.ch AG
Altendorf · Since 2018
The company "sanitärheizig.ch" is a specialist in sanitary and heating solutions. The core activities include planning, execution and maintenance of heating renovations, heat pumps, wood heating systems, pellet heating systems, chip heating systems, bathroom renovations, conversions, water softening systems, shower-toilet systems and solar systems. The company also offers service activities such as maintenance and repair of sanitary and heating systems.
AutoSolar AG
Oetwil Am See · Since 2019
The core activity of AutoSolar is the planning, sale and implementation of solar projects, in particular the installation of solar panels and the provision of solutions for solar technology.
Elektrobedarf Troller AG
Zofingen · Since 2010
Edmondo Franchini SA
Lamone · Since 1985
Aqua-Solar AG
Büsserach · Since 1975
Aqua Solar AG is a wholesale company specializing in supplying swimming pool retailers in Switzerland. The company's core activity is the distribution of products related to swimming pools, including roller shutter covers, swimming pool and filter technology, as well as other accessories. The company offers its customers a comprehensive product range, professional advice, prompt delivery, and a very extensive warehouse availability.
Elektro Hunziker AG
Gwatt (Thun) · Since 1986
Elektro Hunziker AG provides electrical engineering services and carries out electrical installations for new builds and renovations. Its services include planning, high- and low-voltage installations, maintenance and inspections, telematics, building automation (KNX), photovoltaic systems and electric vehicle charging stations.
Baris Group GmbH
Bad Zurzach · Since 2021
The core activity of Baris Elektrokontrollen is the implementation of electrical inspections, consulting and training in the field of electrical safety, particularly for photovoltaic systems. The company also offers rental measurement models and advises customers on electrical installations and inspection complaints.
Meyer Burger Technology AG
Gwatt (Thun) · Since 1999
Pasan SA
Neuchâtel · Since 1983
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Source: Federal Statistical Office, UID register