Solar & Photovoltaics in
Jona

Lampert + Walker AG

Since 1991 · 11–20 empl.·4.8(12)

Lampert + Walker AG is a service company specializing in the planning, execution and maintenance of heating and cooling systems in buildings. The core activities include consulting, planning and execution of projects in the field of building technology, particularly in the areas of heat pumps, natural gas/biogas, wood heating, solar systems and cooling.

A. Winiger Sanitäre Anlagen GmbH

Since 1997 · 11–20 empl.·4.6(10)

The core activity of A. Winiger Sanitäre Anlagen GmbH is the planning, installation, maintenance and repair of sanitary systems in new and renovation projects, for both private homeowners and large customers. This includes, in particular, the creation of sanitary installations, the performance of regular maintenance work and the provision of emergency services. In addition, the company also offers renovation management services, where it coordinates various specialist trades such as painting, tiling, electrical, plastering and masonry.

Elektrizitätswerk Jona-Rapperswil AG

Since 1902 · 51–100 empl.·3.8(24)

The company's core activity is energy supply and services, particularly in the field of electricity supply, as well as providing services in the areas of installation, networks, building technology and energy consulting.

Elektro Möhl AG

Since 2002 · 11–20 empl.·4.3(6)

The core activity of Elektro Möhl AG is the provision of services and solutions in the field of electrical engineering, particularly in the following areas: electrical installations and inspections, photovoltaic systems and storage systems, e-mobility and charging infrastructure, communication systems and smart home solutions, consulting and planning of electrical projects, and maintenance and servicing of electrical systems. The company thus offers a comprehensive range of electrical engineering services for private and business customers.

Ohm Elektro Solar GmbH

Since 2022 · 1–10 empl.

The core activity of Ohm-elektro is the planning, installation and maintenance of photovoltaic systems, as well as the performance of electrical inspections and the provision of service offerings in the field of electrical engineering.

EICHER building systems GmbH

Since 2025 · 1–10 empl.

EICHER building systems GmbH supplies building materials, systems and accessories for the building envelope. The company also provides services related to roofing, façades, waterproofing, insulation, safety and solar energy, including consulting, planning support, feasibility checks, energy analyses and photovoltaic cleaning.

Baumgartner & Stillhard Elektro AG

Since 2026 · 1–10 empl.

Baumgartner & Stillhard Elektro AG plans, installs and maintains electrical systems for new builds and renovations as well as residential, commercial and industrial buildings. Its services also include maintenance, safety inspections, lighting installations, communication solutions, building automation, photovoltaics, e-mobility and engineering.

Alp Energy GmbH

Since 2005 · 1–10 empl.

The core activity of Alp Energy is the planning, consulting, installation and maintenance of solar systems, energy storage systems and electromobility solutions for private and business customers.

trunova ag

Since 2011 · 11–20 empl.

trunova ag provides energy consulting and supports the planning, implementation and project supervision of solar thermal systems and photovoltaic installations, and offers GEAK certification and thermographic surveys.

Suneco AG

Since 2016 · 1–10 empl.

The core activity of SUNECO AG is the planning, installation and consulting of photovoltaic systems and energy storage systems for industrial, commercial and private customers, with the goal of promoting the self-consumption of renewable energy and reducing dependence on external power sources.