Solar & Photovoltaics

Sonnenenergie Plus GmbH 

Uetendorf · Since 2022

The core activity of Sonnenenergie Plus GmbH is the planning, installation and maintenance of photovoltaic systems and solar systems, including the provision of energy storage systems, heat pumps and charging solutions for private and commercial customers. The company also offers service and repair services for solar systems and develops customized energy concepts for its customers.

SOPRO Capital Swiss GmbH 

Pfäffikon Sz · Since 2024

SOPRO Capital Swiss GmbH is a renewable energy asset manager specializing in the development and management of solar PV and battery energy storage system (BESS) projects. The company provides project development, financing, technical and financial assessments, securing land-use rights, permitting, power purchase and interconnection agreements, and asset management services.

SP Smart Electronics Swiss GmbH 

Basel · Since 2023

The core activity of SP Smart Electronics GmbH is the provision of services in the field of electrical engineering, particularly in the areas of: electrical installations, photovoltaics (solar energy), building automation, smart home solutions (using Loxone technology), and wallbox installations (for electric vehicles). The company offers high-quality services to support customers in planning, installing, and maintaining electrical systems, promoting an environmentally friendly and sustainable future.

SSFE Swiss Solar Facility Engineering Sàrl 

Le Sépey · Since 2012

The core activity of SSFE is the planning, development and installation of renewable energy solutions, particularly photovoltaic systems, as well as providing services in the field of energy efficiency and climate protection. This also includes the installation of electrical energy storage systems, promoting electromobility through the installation of charging stations, and developing autonomous energy supply systems for houses and buildings.

S & S Solaranlagen GmbH 

Muri Ag · Since 2011

The core activity of S&S Solaranlagen GmbH is the planning, implementation and consulting of solar systems for photovoltaics and solar thermal energy, including the installation of energy storage systems and the optimization of energy efficiency.

SSWISS GROUP AG 

Zug · Since 2020

SSWISS GROUP AG arranges commercial charter and ACMI flights and provides flight booking, seat reservations and additional services for private and commercial air travel. The company also acts as a general sales agent and EU representative for certain airline partners.

Stark Strom GmbH 

Breitenbach · Since 2015

The core activity of Stark Strom GmbH is the installation and optimization of solar power systems as well as the sale and installation of energy storage systems.

Steiner Energietechnik AG 

Dittingen · Since 2022

The core activity of Steiner Köng Energietechnik AG encompasses the planning, installation, maintenance, and renovation of: heating systems, sanitary and water installations, electrical systems, solar and photovoltaic systems, hydrogen systems, and customer-specific masonry work. The company thus offers a comprehensive range of services in the fields of energy technology and construction.

STEREAU SUISSE SA 

Yverdon-Les-Bains · Since 2019

Here are the core activities of the companies: 1. Solexis SA: Distribution of solar equipment, Engineering office, Expertise and technical support, Training, After-sales service 2. Stereau Suisse SA: Water treatment 3. ESG Ecole supérieure pour la technologie et le management: Training school 4. GMB Services SA: No specific activity indicated 5. ASRIMM: Swiss Romande Association intervening against neuromuscular diseases 6. Novaccess: Wireless IoT solution for Smart Cities

Stettler Haustechnik AG 

Büetigen · Since 2013

The core activity of Stettler Haustechnik AG is the renovation and maintenance of sanitary facilities, heating systems and water supply systems, particularly in the areas of bathrooms and heating systems, as well as the provision of service and consulting services in these areas.

Stöckli Solartechnik GmbH 

Zwillikon · Since 2023

Stöckli Solartechnik GmbH designs, manages and installs photovoltaic systems along with battery storage and energy management solutions. Services include consulting for builders and architects, schematic and planning documentation, yield and economic analyses, turnkey project execution and installation of electric vehicle charging stations.

StreamTec Solutions AG 

Zug · Since 2013

The core activity of StreamTec PV is the planning and development of ground-mounted photovoltaic systems (PV systems).

streetopia ag 

Teufen Ar · Since 2015

The core activity of streetopia Domestic Smartness is the development and provision of solutions for sustainable energy and automation, particularly in the areas of photovoltaics and robotics. Specifically, this includes the manufacture of solar awnings (SOLARIS) for environmentally friendly energy generation, as well as the development of robots that can be used in various areas such as security, health, care, gastronomy and hospitality. The goal is to create a comprehensive ecosystem that helps customers reduce their ecological footprint while improving their quality of life.

Streit AG energietechnik 

Bachenbülach · Since 2005

The core activity of Streit AG includes the planning and execution of electrical installations for private, commercial and industrial customers, including the areas of e-mobility, smart home, photovoltaics and renewable energies. This also includes the installation and servicing of internet, telephony and network solutions, as well as the optimization of solar systems and energy storage systems.

Strittmatter & Püntener Haustechnik AG 

Zurich · Since 2019

Strittmatter & Püntener Haustechnik AG is an installation company for sanitary, heating and solar systems, providing planning, installation and after-sales service for new installations, renovations and maintenance.

Strombringer GmbH 

Gümligen · Since 2023

Strombringer GmbH provides engineering services in the energy sector, specialising in the planning and installation of photovoltaic systems and battery storage solutions. The company also performs building energy assessments (GEAK), consumption optimisation, smart‑home integration, ZEV/vZEV/LEG planning and project coordination including client representation on construction sites.

Stromkreis GmbH 

Dietlikon · Since 2010

Stromkreis GmbH provides electrical and communications installation services, installing telephony and door intercom systems as well as computer and TV networks for residential and commercial buildings. The company operates its own repair workshops and assists with sourcing lamps, luminaires, cables, plugs and handheld devices.

Stromwärts GmbH 

Lucerne · Since 2021

The core activity of Stromwärts GmbH is the provision of electrical services.

Stromwerk AG 

Zurich · Since 2009

The core activity of Stromwerk AG is the planning, construction, operation and maintenance of photovoltaic solar power plants on the roofs of commercial buildings, multi-family houses, farms and properties in Switzerland. The company offers its customers a complete service, including financing, consulting and optimization of solar surfaces, to enable efficient and sustainable energy production.

Strub Holzbau + Bedachungen AG 

Glashütten · Since 2023

The core activity of Strub Holzbau + Bedachungen AG encompasses the planning and execution of various construction projects, particularly: Carpentry: wooden structures for pitched and flat roofs, wooden elements for residential, commercial and industrial buildings; Roofing: roofing, roof renovation, roof windows, dormer windows; Metalwork: metalwork for roof and facade cladding; Facade construction: facade cladding, facade renovation; Interior finishing: drywall construction, floor, wall and ceiling systems in wood and gypsum drywall construction. The company also offers additional services such as planning and installation of lightning protection systems, solar systems and maintenance safety systems for pitched and flat roofs.