Solar & Photovoltaics in
Sion

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.

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.

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.

Sionic SA

Since 1966 · 11–20 empl.·3.0(2)

The core activity of Sionic SA encompasses the development, conception, implementation, and maintenance of solutions in the fields of security, communication, and energy. Specifically, the company offers the following services: * Security solutions: Emergency and security lighting, Evacuation sonorization, Intercom systems * Communication solutions: Intercom systems, Sonorization * Energy solutions: Photovoltaics, Solar photovoltaic installations * Maintenance and service: High-level technical maintenance for the above-mentioned solutions The company positions itself as an innovative partner for its customers, offering tailored solutions to meet their security, communication, and energy needs.

Evaarist SA

Since 2024 · 1–10 empl.

Evaarist SA is a specialist in the field of renewable energy and offers solutions for autonomous energy supply. The company's core activity includes the conception, planning and implementation of projects in the field of renewable energy, particularly in the areas of solar energy, heat production and energy efficiency. The company provides its services to both private households and businesses, as well as public institutions, and supports its customers in implementing projects that aim for sustainable and autonomous energy supply.

ENERCO Sàrl

Since 2019 · 1–10 empl.·5.0(1)

ENERCO Sàrl provides planning, consulting, project execution and installation of photovoltaic systems and solar carports, including self‑consumption solutions. The company also supplies and integrates electric vehicle charging infrastructure and serves residential, commercial, tourism and public‑sector clients.

OIKEN SA

Since 2019 · 101–500 empl.·2.8(70)

OIKEN SA is an energy and services company offering electricity supply, photovoltaic systems, mobility and charging infrastructure, and heating solutions. It also provides energy efficiency consulting, contracting for heat and photovoltaics, and multimedia and network services (internet, TV, telephony, OIKEN connect) for households, businesses and municipalities.

Bucheli Energy Solutions

Since 2025 · 1–10 empl.

Bucheli Energy Solutions provides engineering and consulting services related to the energy transition, with a focus on electric mobility, renewable energy integration, and system integration. The company supports private customers, condominium associations, and SMEs from analysis and planning through commissioning and operation.

Electro-Service Christian Mühlheim

Since 1981 · 1–10 empl.

Alp-Sun SA

Since 2012 · 1–10 empl.

Equisol société coopérative

Since 2012 · 1–10 empl.