Solar & Photovoltaics in the
Canton of Valais

tritec AG

Since 2009 · 11–20 empl.·3.7(3)

tritec AG provides photovoltaic systems and related services, including project planning, installation, commissioning and ongoing maintenance for residential customers, large‑scale, high‑alpine and ground‑mounted projects. The company also offers battery storage solutions, e‑mobility charging infrastructure, wholesale distribution and training services.

Simos-toit Sàrl

Since 2021 · 1–10 empl.·5.0(16)

The company Simos-toit specializes in roofing work and offers services in the areas of roof renovation, renewal and maintenance.

Somiral Energy Supplies SA

Since 1985 · 1–10 empl.

The company's core activity is the planning, construction and maintenance of renewable energy systems, particularly photovoltaic systems, for the private sector and major energy suppliers. This includes the provision of engineering services, the installation and commissioning of systems, as well as the automation and maintenance of electromechanical systems.

Lauber IWISA AG

Since 1987 · 101–500 empl.

The core activity of Lauber IWISA includes the planning, installation and maintenance of building technology, including: sanitary and heating technology, photovoltaic system construction, infrastructure and water supply technology, as well as roofing and sheet metal work. The company also offers services such as customer service, planning and consulting in these areas.

Monnay Electricité SA

Since 1991 · 1–10 empl.

The core activity of Monnay Electricité SA consists of planning, installing and maintaining electrical systems, including renewable energies such as solar energy and heat pumps, as well as providing services in the field of electrical engineering, such as repairs, renovations and consulting.

Fournier, dépannage, électricité, électroménager

Since 2000 · 1–10 empl.

The company Electricité Fournier - ConceptEnergie is an electrical installation company specializing in the planning, installation, and maintenance of electrical systems, including photovoltaic systems. The core activities include the design and implementation of electrical installations for residential and commercial buildings, chalets, hotels, and other properties, as well as the installation of solar systems and consulting on energy efficiency and production.

Elektro Sies GmbH

Since 2004 · 1–10 empl.

The core activity of Elektro Sies GmbH encompasses the planning, installation, repair and maintenance of electrical systems, as well as the sale of electrical appliances and lamps. Specific activities include: installations of electrical systems in residential and commercial buildings, industry and hotels; repairs to electrical installations, cooking and baking appliances, boilers and electrical controls; inspections of electrical installations; sales of electrical appliances, lamps and household appliances; installation and commissioning of solar systems; and network construction and transformer stations. The company also offers services such as consulting, planning and tendering of electrical projects.

Solalpes Energie SA

Since 2008 · 1–10 empl.

The core activity of Solalpes Energie SA is the conception, installation and distribution of photovoltaic systems, particularly in the canton of Valais in Switzerland.

Esprit Energie Sàrl

Since 2010 · 1–10 empl.

The core activity of Esprit Energie Sàrl is the planning and implementation of energy-efficient and sustainable construction projects, particularly in the field of Minergie and CECB standard buildings, as well as consulting and implementing projects in the field of renewable energy and sustainable development.

Energie Solaire Illarsaz Sàrl

Since 2011 · 1–10 empl.

Energie Solaire Illarsaz Sàrl provides design and installation of photovoltaic systems, electric vehicle charging stations and off‑grid solar solutions for individuals, businesses and public entities. The company offers free evaluations and installs certified products in accordance with Swiss standards and applicable safety regulations.

Solar Bellwald GmbH

Since 2012 · 1–10 empl.

The core activity of Solar-Bellwald GmbH is the planning, manufacturing and installation of photovoltaic systems, particularly balcony railings with integrated photovoltaics and solar systems on avalanche control structures. The company also offers DIY kits for photovoltaic systems suitable for balconies and facades.

Constantin Solar AG

Since 2012 · 1–10 empl.

Constantin Solar AG is part of the Constantin Group and provides transport, construction, recycling, and real estate services, including property sales, purchases, rentals, and management. The company also offers logistics and warehousing services and operates a waste collection point for various recyclable materials and disposal streams.

Aquasolaire Sàrl

Since 2012 · 1–10 empl.

Aquasolaire Sàrl designs and installs solar thermal systems, providing system design, sizing, quotations, technical dossiers for subsidies and permitting, installation and maintenance. It also installs heating systems such as hydronic wood or pellet stoves and offers ventilation solutions and advisory services.

ElectroSolar SA

Since 2013 · 11–20 empl.

The core activity of ElectroSolar SA is the installation of photovoltaic panels and the provision of services in the field of renewable energy, particularly in the field of solar energy. This also includes consulting, project development and the implementation of analyses and studies related to the use of solar energy.

Zanella Energie GmbH

Since 2015 · 1–10 empl.

Zanella Energie GmbH is a wood-processing company that operates a sawmill to turn timber into sawn wood and further refines it in its own planing mill. It also sells wood-based materials and offers products such as facade cladding, interior panelling and decking.

Ewald Gattlen AG

Since 2011 · 1–10 empl.

The company's core activity is the planning, installation and maintenance of building technology, including heating, ventilation, air conditioning, solar systems and sanitary technology, as well as the provision of services in the field of integral building technology, including technical planning and consulting.

Zufferey Electricité SA

Since 2010 · 1–10 empl.·4.5(13)

The core activity of Zufferey Electricité consists of planning, installing and maintaining electrical systems, including: installations of electrical systems for new buildings and renovations, photovoltaic systems, domotics systems, multimedia systems, service and repair of electrical systems, and consulting and planning of electrical systems through its own electrical engineering office. The company thus offers a comprehensive range of services in the field of electrical engineering.

i-watt Sàrl

Since 2018 · 1–10 empl.·5.0(4)

The core activity of i-watt Sàrl is the installation of photovoltaic panels (solar energy systems) for businesses and individuals, including associated services such as study and consulting, monitoring and maintenance, as well as administrative procedures.

Smartsuna SA

Since 2020 · 1–10 empl.

Smartsuna provides solutions for companies to increase their energy autonomy by installing solar systems and implementing energy management systems to optimize energy consumption and reduce dependence on the power grid.

SEBASOL-Valais

Since 2021 · 1–10 empl.

SEBASOL-Valais designs and assists in building solar thermal systems for domestic hot water (DHW) and heating, often combined with a hydraulic wood stove to cover remaining needs. It operates via volunteer-run regional centres that train self-builders, supplies materials at cost, provides courses and documentation, and cooperates with licensed installers for turnkey installations.

Coopérative Autovoltaic-VS

Since 2019 · 1–10 empl.

The core activity of Autovoltaic-VS is the promotion and support of carport projects for photovoltaic systems in Switzerland, particularly in the canton of Valais. The company offers consulting, planning and accompaniment for the installation of solar energy systems, where customers carry out the installation themselves. The goal is to promote the use of renewable energy and drive the energy transition in Switzerland.

tera solar sa, succursale du Valais

Since 2024 · 1–10 empl.·5.0(16)

tera solar sa, succursale du Valais provides turnkey photovoltaic systems, battery storage, EV charging stations and solar carports. The branch serves private and commercial clients with services including contracting and solutions for self-consumption.

Gebr. Zimmermann AG, Spenglerei und Installationen

Since 1969 · 1–10 empl.·5.0(3)

The core activity of Gebrüder Zimmermann AG is the provision of services and works in the areas of sanitary, heating, plumbing, roofing, solar and stone slab roofing. Specifically, this includes the installation, maintenance and repair of sanitary facilities, heating systems, plumbing work, roofing, solar systems and stone slab roofs.

Elektro-Lumen GmbH

Since 2002 · 1–10 empl.·5.0(9)

The core activity of Elektro Lumen is the planning, installation and repair of electrical systems and installations, including: electrical planning, electrical installations, telematics systems, electrical heating systems, TV systems, household electrical appliances, electrical repairs, photovoltaic systems, electrical inspections and electrobiology. The company thus offers a wide range of electrical services, from planning and installation to maintenance and repair.

Crettaz Electricité SA

Since 2009 · 21–50 empl.·5.0(4)

The core activity of Crettaz Électricité is to provide services in the field of electrical engineering, including: installation and maintenance of electrical systems (LOW CURRENT | HIGH CURRENT | DOMOTICS), consulting and planning of electrical projects, carrying out repairs and maintenance work (troubleshooting), and implementing electrical solutions for private, commercial and public institutions. The company thus offers comprehensive electrical services to meet the needs of its customers.

1, 2, 3 Soleil SA

Since 2024 · 1–10 empl.·5.0(17)

The company 123 Soleil is a provider of solutions for renewable energy and energy efficiency. The company's core activity includes the planning, installation and maintenance of: solar energy systems (solar panels), electric vehicle charging stations, heat pumps, energy storage systems, and building automation systems. The company also offers services such as energy consulting, installation and maintenance of systems, as well as administrative support for applying for grants and tax benefits for ecological installations.

Gebrüder Zuber AG

Since 1995 · 1–10 empl.·5.0(5)

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.

ÉLECTRICITÉ PIERRE MICHEL DUAY SA

Since 2020 · 1–10 empl.

The core activity of DPM Electricite is the provision of electrical services, including installation, maintenance and repair of electrical systems, for both private and professional customers, particularly in the construction, real estate and industrial sectors.

CH1961 SA

Since 1996 · 11–20 empl.·4.2(5)

The core activity of Courtine & Heritier SA consists of planning, installing and maintaining technical systems in buildings, particularly in the field of building services, as well as carrying out work on the building envelope. Specifically, this includes: installation and maintenance of heating systems (oil, gas, heat pumps, solar systems), sanitary technology, ventilation systems, energy efficiency measures (Minergie), planning and execution of roofing work (Couverture, Ferblanterie, Revêtement de façade, Toiture bardeau mélèze), sealing work (Etanchéité), and renovations and conversions of buildings. The company thus offers a comprehensive range of services in the field of building technology and envelope.

Planair SA

Since 2021 · 21–50 empl.·5.0(2)

Planair SA is an engineering and consulting firm focused on energy and climate transition, providing independent advice and planning solutions for sustainable and economically viable energy systems. Its services include work on sustainable buildings, efficient industrial processes, resilient territorial energy systems and professional training.

Elektro Ruppen AG

Since 2003 · 1–10 empl.·3.9(9)

The core activity of Elektro Ruppen AG is the planning, installation and maintenance of electrical systems, security systems and building cabling for residential, commercial and industrial buildings, including the installation of photovoltaic systems, storage systems and charging stations.

VS Solarstrom AG

Since 2012 · 1–10 empl.·4.8(6)

The core activity of VS Solarstrom AG is the planning and implementation of roofing, sheet metal work, flat roofs, pitched roofs and photovoltaic systems. They offer innovative and sustainable solutions in the field of roof and facade construction as well as solar energy generation.

iELLO SA

Since 2023 · 1–10 empl.·4.5(8)

The core activity of iELLO is the planning, installation and management of photovoltaic systems, particularly for private and commercial customers in Valais, Switzerland. The company offers services such as consulting, planning, installation and maintenance of solar energy systems, enabling customers to produce and consume their own energy.

MGM solaire Sàrl

Since 2023 · 1–10 empl.·4.8(11)

The core activity of MGM Solaire Sàrl is the planning, installation and maintenance of photovoltaic systems, particularly in the Valais region of Switzerland. The company also offers additional services such as energy audits and consulting on the choice between solar thermal and photovoltaic systems.

Valkontroll GmbH

Since 2000 · 11–20 empl.·4.4(8)

The core activity of Valkontroll is the planning, installation and maintenance of electrical systems and installations, including high-voltage, low-voltage, TV, data systems, KNX and DALI lighting controls. The company also offers services in the field of renewable energy, such as photovoltaics and hydroelectric power, as well as electromobility and remote control. In addition, Valkontroll carries out repairs and inspections of electrical systems and offers consulting and planning services for lighting installations and other electrical engineering projects.

Rhyner énergie Sàrl

Since 2003 · 11–20 empl.·5.0(3)

The core activity of Rhyner Energie is the planning, implementation and monitoring of energy-related renovations of buildings, including the installation of solar thermal and photovoltaic systems, the conduct of energy audits (CECB, Minergie) and consulting on the selection of environmentally friendly materials. Additionally, the company offers wood heating systems (Chauffage à bois) and supports customers in the energy-related renovation of their buildings.

SUNWELL Sàrl

Since 2020 · 1–10 empl.

The core activity of SUNWELL is the planning and design of alpine solar systems, particularly photovoltaic systems, taking into account the specific conditions of the alpine environment such as snow, wind and radiation. The company provides consulting services to enable the most efficient and safest placement of solar systems, thereby contributing to the promotion of renewable energies.

Skywatt SA

Since 2023 · 1–10 empl.·5.0(9)

The core activity of Skywatt SA is the planning, installation and maintenance of solar systems, including photovoltaic systems, battery storage and charging stations for electric vehicles. The company also offers comprehensive services such as coordinating permit procedures, performing inspections and maintenance, and developing customized solutions for the energy transition.