Photovoltaics in
Winterthur
31 companies in Photovoltaics based in Winterthur — name and year of registration from the commercial register. The list below shows them all.
All 31 companies in Winterthur
Heinz Schmid AG Elektro-Anlagen
Since 1980 · 51–100 empl.4.7(35)
The core activity of Heinz Schmid AG is the provision of services in the field of electrical engineering, particularly in the following specific areas: electrical installation, photovoltaics (installation of solar systems), charging stations (for electric vehicles), e-mobility (electromobility), and fiber optics (installation of fiber optic cables). The company offers these services as an electrician in Winterthur and has specialized in the installation and maintenance of electrical systems.
engitec AG
Since 2023 · 21–50 empl.5.0(57)
The core activity of engitec is the planning, installation and maintenance of sustainable energy solutions, particularly photovoltaic systems, energy storage systems and charging stations, as well as conducting feasibility analyses and optimizing energy solutions for private individuals and companies.
Stähli Haustechnik AG
Since 1995 · 21–50 empl.4.5(46)
The core activity of Stähli Haustechnik AG is the planning, installation, maintenance and servicing of building technology systems, particularly in the areas of sanitation, heating and ventilation. The company also provides consulting and implementation of projects in the field of building technology and is committed to sustainable and environmentally friendly solutions.
Senero AG
Since 2005 · 21–50 empl.4.9(11)
Senero AG designs, installs and maintains photovoltaic systems and supplies battery storage, energy-management solutions, e-mobility services and off-grid systems. The company also provides engineering for large projects, system monitoring and training activities in photovoltaics.
Schwarzwälder AG
Since 1996 · 11–20 empl.5.0(7)
The core activity of Schwarzwälder AG is the planning, execution and maintenance of roof, facade and solar systems. Specifically, this includes: Roofing work (pitched roof, flat roof), Facade construction and renovation, Installation and maintenance of solar systems (photovoltaics), Energy-efficient renovation of roofs and facades. The company thus offers services in the field of building envelopes and renewable energies.
arbatherm AG
Since 1987 · 21–50 empl.4.4(5)
arbatherm AG provides building services for solar, heating and plumbing systems. Its work includes planning, installation, renovation and maintenance, as well as advice for new-build and refurbishment projects.
Elektro Bürgin AG
Since 2008 · 11–20 empl.4.7(13)
The core activity of Elektro-Bürgin AG is the planning, installation and maintenance of electrical systems and installations, including photovoltaic systems, for households and large-scale projects. The company also provides electrical installation services, such as the installation of power lines, lighting systems and other electrical components.
Ego Elektrikergenossenschaft
Since 1982 · 11–20 empl.
The core activity of Ego Elektrikergenossenschaft is the provision of services and products in the field of electrical engineering, particularly in the areas of: electrical installations (high voltage, low voltage, residential, industrial and commercial), planning, installation and construction management of electrical systems, service and small orders, telecommunications/informatics (networks, fiber optic installations, telephone systems), television (TV installations, satellite installations), power plant construction (photovoltaic systems, biogas plants with CHP, hydroelectric power plants), lighting construction, prototypes and series production, and control system construction. The company thus offers a wide range of electrical engineering services and products, from planning and installation to maintenance and repair.
Genossenschaft "SolVent"
Since 1993 · 1–10 empl.
Genossenschaft "SolVent" develops and applies solar and wind energy, and finances, builds and operates solar installations that feed electricity into the grid. It provides information about alternative energy and advises homeowners on planning and implementing photovoltaic systems.
Genossenschaft Rysolar Plus
Since 2012 · 11–20 empl.
The core activity of RySolar Plus is the promotion of environmentally friendly renewable energies, in particular through the creation, acquisition and operation of solar systems at the Rychenberg cantonal school. Furthermore, the company promotes information on environmentally friendly energy production and use, without pursuing commercial purposes or seeking profit.
Isler + Kägi AG Bedachungen
Since 2016 · 1–10 empl.4.6(5)
The core activity of Isler + Kägi AG is the planning, execution and management of roofing work, including the construction of pitched roofs, flat roofs and photovoltaic systems.
Ovenstone Engineering GmbH
Since 2019 · 1–10 empl.
Ovenstone Engineering GmbH develops, plans and implements photovoltaic and smart metering projects. Its services include consulting and technical planning, including for self-consumption optimization, energy storage and self-consumption communities, as well as project support and energy consumption analysis.
Fluxim AG
Since 2007 · 21–50 empl.5.0(1)
Fluxim AG develops and supplies simulation software and measurement hardware for research and development in OLED displays, solar cells, batteries and photodetectors. Its services also include consulting, training, custom software development and device characterization.
Genossenschaft Wintisolar
Since 2018 · 1–10 empl.5.0(5)
Genossenschaft Wintisolar plans, installs and operates photovoltaic systems and carries out electrical installations. Its services also include consulting, maintenance and heating advice, and it supports the professional integration of socially disadvantaged people through work opportunities.
Märki Energie und Technik
Since 2019 · 1–10 empl.
Märki Energie und Technik develops, advises on and delivers projects involving renewable energy, energy efficiency and control systems. Its activities include autonomous energy supplies, solar and wind energy, and technical installations for exhibition objects.
KMN Elektro-Ingenieurbüro AG
Since 1976 · 1–10 empl.5.0(2)
KMN Elektro-Ingenieurbüro AG plans electrical systems for buildings, including power and low-voltage installations. Its services also include planning photovoltaic and intrusion detection systems and coordinating building services engineering.
Metesan GmbH
Since 2023 · 1–10 empl.5.0(4)
Metesan GmbH plans, installs and maintains photovoltaic systems for households, commercial customers and industry. Its services also include battery storage, wallboxes, planning, consulting, servicing and maintenance.
Inmova AG
Since 2024 · 1–10 empl.
Inmova AG specializes in electrical installations for caravans, marine vessels and off‑grid photovoltaic systems. The company provides consulting, system design, installation and support, and supplies components such as batteries, chargers, navigation equipment and related accessories, including products from manufacturers like Mastervolt.
W. Rokitzky AG
Since 2023 · 1–10 empl.5.0(2)
W. Rokitzky AG is an owner-operated trade company providing planning, installation, renovation and maintenance of heating, cooling, ventilation, air-conditioning and sanitary systems. The company also delivers service and on-call emergency support, consulting and expert reports, and integrates renewable technologies such as heat pumps and thermal solar systems into building services.
DANEV ELEKTROTECHNIK AG
Since 2025 · 1–10 empl.
DANEV ELEKTROTECHNIK AG provides electrical installations as well as planning, maintenance and service work. The company also handles network installations, KNX automation, photovoltaic systems, EV charging solutions and electrical inspections.
E-Sol Energy Solutions Hugo Campos Fonseca
Since 2024 · 1–10 empl.
E-Sol Energy Solutions Hugo Campos Fonseca is an energy-sector business specialising in photovoltaic systems. Its services include consulting, planning, installation and maintenance of solar systems, energy storage and energy management systems.
Sabtron Services GmbH
Since 2024 · 1–10 empl.
Sabtron Services GmbH provides services in photovoltaics, security and building technology, cleaning and building maintenance. Its activities also include craft and construction work and property management.
GROUPE CURIE - GEFARM AG
Since 2025 · 1–10 empl.
GROUPE CURIE - GEFARM AG designs and supplies integrated energy storage and industrial energy systems, including sodium–nickel battery energy storage systems (BESS), photovoltaic integration, and Power‑to‑X solutions.
Krisol AG
Since 2009 · 1–10 empl.
Wild Electronics Systems
Since 2012 · 1–10 empl.
SCHNELLI NAIKUNI ENERGY SYSTEMS
Since 2014 · 1–10 empl.
Solar-EK GmbH
Since 2024 · 1–10 empl.
Gedaso GmbH
Since 2024 · 1–10 empl.
Erneuerbare Energien Winterthur GmbH
Since 2025 · 1–10 empl.
Nexus Solaris 21 AG
Since 2026 · 1–10 empl.
Mastermind Kraus
Since 2026 · 1–10 empl.
Photovoltaics in Winterthur
Photovoltaics in the region
Point size by number of companies per place.
Source: commercial register (Zefix) · as of November 6, 2026
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