Solar & Photovoltaics

Gruelmob Sagl 

Motto (Blenio) · Since 2020

Guggenheim Solutions GmbH 

Cham · Since 2015

The core activity of Guggenheim Solutions is the planning, implementation and maintenance of photovoltaic projects, including portfolio analysis, obtaining permits, applying for subsidies, construction and installation of solar systems, as well as taking over energy sales and power management. The company offers its customers a 'worry-free' package that covers all necessary steps for the realization of a photovoltaic project.

Guido Sigrist AG 

Regensdorf · Since 2012

The core activity of Guido Sigrist AG is the installation, maintenance and repair of solar systems and photovoltaic systems, as well as the performance of service work in the heating and sanitary sector.

H2 Solar AG 

Linthal · Since 2020

The core activity of H2 Solar AG is the development of technologies for artificial photosynthesis, in particular through the development of membranes that can split water into hydrogen and oxygen, thereby creating a sustainable and clean energy source.

Harnisch S.A. 

Sonceboz-Sombeval · Since 2001

H.E. Privé AG 

Amriswil · Since 2020

The core activity of HE Privé AG is the investment, development and management of solar power plants and solar parks to produce and sell renewable energy. The company also offers services such as leasing, maintenance and repair of solar power plants. Furthermore, it enables private investors to invest in solar energy and benefit from the returns without having to bear the entire financial burden of purchasing and installing solar panels.

Hermann Schwyzer AG 

Stans · Since 1980

The core activity of Schwyzer Heizungen AG is the planning, installation, maintenance and repair of heating systems, including environmentally friendly heating systems such as heat pumps, solar systems, wood heating systems, oil heating systems and pellet heating systems. The company also offers service activities such as burner service, corrosion protection and ventilation systems.

HopSol AG 

Wilen B. Wollerau · Since 2010

The core activity of HOPSOL Africa is the development, construction and operation of solar power plants, including on- and off-grid solar systems, fuel-saving regulators and solar-diesel hybrid systems on a large technical scale, particularly for use in desert and desert-like regions.

WELES GROUP (Switzerland) AG 

Baar · Since 2020

The core activity of Hunter and Fry is advising and supporting companies in migrating and operating SAP systems on hyperscalable cloud platforms, in particular on the platforms of Amazon Web Services (AWS), Microsoft, Google and other global technology leaders.

i4en AG 

Münsingen · Since 2023

The core activity of i4en AG is the planning, installation and marketing of solar systems and renewable energy installations.

IFSEC - Institute for solar energy concepts GmbH 

Wil Zh · Since 2014

Lamko SA 

Tesserete · Since 1977

The core activity of LAMKO SA is the planning and implementation of photovoltaic systems, both connected to the power grid and autonomous island solutions, as well as the installation of electrical heating systems.

Langenegger Energie GmbH 

Flawil · Since 2022

Lauber IWISA AG 

Naters · Since 1987

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.

Lenox Swiss AG 

Küsnacht Zh · Since 2011

le plombier Koqinaj GmbH 

Schmitten Fr · Since 2018

The company Le Plombier GmbH is a service provider specializing in building technology and sanitary technology. The core activities include: installation, maintenance, and repair of heating systems; sanitary technology, including the installation and maintenance of sanitary facilities; plumbing, including the manufacture and installation of metalwork on buildings; solar systems, including installation and maintenance; and a 24-hour emergency service for repairs and malfunctions in the above-mentioned areas. The company thus offers a wide range of services in the field of building technology and sanitary technology, positioning itself as a reliable and competent partner for its customers.

L+H ekonergi solutions gmbh 

Engelberg · Since 2012

machsol gmbh 

Donat · Since 2015

Marco Bösch GmbH 

Diepoldsau · Since 2021

Markantus AG 

Tägerwilen · Since 2008

The core activity of Markantus AG is the planning, implementation and maintenance of photovoltaic systems, in particular special PV solutions, including the analysis and optimization of sites, the submission of building applications, the physical implementation by a network of qualified craftsmen and the ongoing maintenance and quality control of the systems.