Companies in
Solar & Photovoltaics

BZA AG

Solar & Photovoltaics · Raperswilen · Since 2001

The core activity of BZA AG Solar is the planning, construction, maintenance and operation of photovoltaic systems as well as the sale of solar power. The company also offers services such as energy consulting, analysis and simulation, planning, construction, installation, maintenance and computer-based maintenance of photovoltaic systems.

BZ Montage GmbH

Specialized Construction Installations · Zofingen · Since 2018

BZ Montage GmbH carries out installation works for resin‑cast and metal‑enclosed busbars, cable trays and wire‑mesh cable ducts, and complete photovoltaic systems. Services include potting and testing of busbar couplings with documentation and measurement protocols, on‑site coppering and touch protection, electrical installations under an installation permit, and general assembly work.

Calstrom GmbH

Solar & Photovoltaics · Trin Mulin · Since 2007

Calstrom GmbH designs and supplies energy and safety systems, including photovoltaic energy centers, solar thermal systems for hot water and heating, small hydropower installations (Pelton turbines) and backup generators. The company also provides automation, measurement and control (PLC) solutions and wildlife warning systems for road safety.

CamperSolar GmbH

Solar & Photovoltaics · Unterägeri · Since 2020

The core activity of CamperSolar GmbH is the sale and delivery of solar systems, batteries and related components for motorhomes, campers and garden applications. The company also offers installation and consulting services and delivers its products directly to customers in Switzerland and Liechtenstein.

Carl Franke AG

Roofing · Rorschach · Since 1980

The core activity of Carl Franke Haustechnik AG is the planning and execution of building technology in residential and commercial construction, including: Heating: design, estimation, installation of heat generators and distribution systems Sanitary: planning and execution of water, gas, compressed air and chemical lines, swimming pools and laundry drains Industrial piping: construction of industrial and commercial piping, cooling basins, transport lines and house connections Liquefied gas: inspection and installation of liquefied gas systems Solar systems: neutral design and estimation of solar systems The company also offers services such as cost estimates, scheduling and coordination with subcontractors.

Casa-technica.ch Landolt Gebäudetechnik AG

Roofing · Näfels · Since 2001

The company "casa-technica.ch – Landolt Gebäudetechnik AG" offers a wide range of services and products in the field of building technology and envelope. The core activities include: Building envelope: roof, façade, sheet metal work, photovoltaics and building renovation; Building services: plumbing, ventilation, bathroom renovation and conversion, wellness and bathroom conversion; Rental of cranes and telehandlers; Sale of sheet metal through the platform "bestell-dein-blech.ch". The company thus offers a comprehensive range of services and products for the planning, execution and renovation of buildings and their technical systems.

Catech - Capella Technologies

Solar & Photovoltaics · Brione Sopra Minusio · Since 2008

The core activity of CATECH is the planning, installation and maintenance of solar systems, as well as the provision of services in the field of renewable energies. The company offers comprehensive solutions for the realization of solar projects, including project development, procurement of materials, installation and maintenance of systems. In addition, CATECH also provides services such as obtaining permits and performing maintenance work.

cbsolar ENGINEERING Sàrl

Solar & Photovoltaics · Vallamand · Since 2013

The core activity of cb solar Engineering Sàrl is the planning, construction and marketing of solar systems, in particular photovoltaic systems, for private and possibly also commercial customers in Switzerland.

CE Concept Energy AG

Solar & Photovoltaics · Roggwil Tg · Since 2023

The company's core activity is the planning, installation and maintenance of energy solutions, particularly in the field of renewable energies, such as photovoltaic systems, battery storage and charging infrastructure for electric vehicles, as well as electrical services and energy management for private households and businesses.

Chaleur Solaire Guy Dafflon

Solar & Photovoltaics · Vuisternens-En-Ogoz · Since 2016

The core activity of Sebasol is the conception, promotion and support of solar thermal systems for hot water preparation and building heating. The company offers training and consulting services for self-builders and also installs solar thermal systems. Additionally, it develops and experiments with new systems and applications for solar thermal energy.

Chapuis & Zürcher AG

Roofing · Bern · Since 1980

The core activity of Chapuis + Zürcher AG is the provision of services and solutions in the fields of sanitary technology, heating technology, plumbing, roofing and solar energy. Specifically, this includes the planning, installation, maintenance and repair of: sanitary facilities (bathroom, kitchen, water treatment, gas), heating systems, plumbing work, roofing, photovoltaic systems and solar thermal systems. The company also offers an emergency service for sanitary and heating systems and operates a sales outlet for sanitary materials.

Christen Bedachungen/Fassadenbau AG

Solar & Photovoltaics · Rüegsauschachen · Since 1995

The core activity of Christen Bedachungen/Fassadenbau AG encompasses the planning, consulting and realization of various works in the field of building envelopes, particularly: roofing (pitched roof, flat roof), facade construction, PV systems (photovoltaic systems), scaffolding, maintenance work, thermal insulation, and skylights. Additionally, the company offers a regular roof inspection service to identify and address potential issues early on.

Christoffel Sanitär-Heizung AG

Solar & Photovoltaics · Scuol · Since 2022

The core activity of Christoffel Sanitär-Heizung AG is the execution of sanitary, heating and ventilation work, including consulting and installation of sanitary facilities and ecological heating systems.

CIEL Solar SA

Solar & Photovoltaics · Romanel-Sur-Lausanne · Since 2024

The core activity of CIEL Solar SA is the planning, installation and maintenance of solar systems for private, commercial and industrial customers in Switzerland, with the aim of promoting the energy transition and reducing dependence on fossil fuels.

Cioce AG

Solar & Photovoltaics · Rorschach · Since 2019

The core activity of CIOCE Gebäudetechnik is the planning, installation, maintenance and servicing of building technology systems, including heating, ventilation, air conditioning, sanitary and electrical installations.

CIPV GmbH

Technical Consulting & Engineering · Zurich · Since 2018

The core activity of CIPV GmbH is the consulting and planning of photovoltaic projects, particularly in the integration of solar energy into urban buildings and urban planning. This includes the development of strategies and market analyses, the planning and optimization of solar power plants, the evaluation of processes and supply chains, as well as the implementation of analyses and expert opinions. CIPV supports companies in introducing photovoltaics into their business field and helps optimize existing solar systems.

CJ Solar-Planning GmbH

Solar & Photovoltaics · Heerbrugg · Since 2022

The core activity of CJ Solar Planning is the specialized planning of solar concepts, particularly the creation of 3D visualizations and project reports for photovoltaic systems, including the consideration of factors such as orientation, roof inclination, roof covering, shading and power consumption.

CKR Solar + Montage GmbH

Solar & Photovoltaics · Staad Sg · Since 2023

The core activity of CKR Solar + Montage GmbH is the installation and assembly of solar energy systems, as well as the related services in the field of renewable energies.

CLEVAR GmbH

Solar & Photovoltaics · Sargans · Since 2021

The core activity of CLEVAR GmbH is the planning, consulting and implementation of solar systems and photovoltaic projects, particularly with the aim of optimizing the self-consumption of renewable energy. This also includes the installation of heat inputs and the integration of storage systems to efficiently convert excess solar power into heat.

Climacy SA

Solar & Photovoltaics · Bussigny · Since 2022

The core activity of Climacy is the development and implementation of renewable energy solutions, particularly in the field of solar energy. Specifically, the company offers two main products: 1. **Solar Tiles**: A solution that enables existing roofs to be equipped with solar modules to generate electricity and feed it back into the grid. 2. **Heating**: A solution based on heat pumps to heat buildings and contribute to the energy transition. Additionally, Climacy offers a comprehensive solution called **Solar Smart Roof**, which combines insulation, solar energy, and aesthetics, suitable for both private and industrial and agricultural buildings.

CommTech CTS SA

Solar & Photovoltaics · Corminboeuf · Since 2015

The core activity of CommTech CTS SA is the development and implementation of systems for optimizing and regulating energy consumption, particularly in the field of building automation and the renewable energy sector. The company offers solutions for self-consumption, energy storage through accumulation, and the integration of solar energy. The focus is on developing intelligent systems that optimize energy consumption and improve building efficiency.

Constantin Solar AG

Solar & Photovoltaics · Salgesch · Since 2017

Coopérative Autovoltaic-VS

Solar & Photovoltaics · Sion · Since 2019

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.

Coopérative OPTIMA SOLAR Fribourg-Freiburg

Solar & Photovoltaics · Fribourg · Since 2022

The core activity of OptimaSolar Fribourg-Freiburg consists of planning, building and operating photovoltaic systems on the roofs of companies, public buildings and private homes to produce and sell renewable energy in the form of solar power.

COOPERATIVE SOLAIRE NEUCHÂTEL

Solar & Photovoltaics · Neuchâtel · Since 2016

The core activity of Coopsol is the planning, implementation and operation of solar power plants in the Neuchâtel region of Switzerland, financed through a participatory financing model, where members of the company can acquire shares in the plants.

Solar-Factory GmbH

Solar & Photovoltaics · Pfaffhausen · Since 2024

Solar-Factory GmbH designs and implements energy solutions focused on photovoltaic systems, battery storage and smart‑energy technologies; services include planning, consultancy, installation, cleaning, and ongoing service and maintenance.

Correvon Solaire SA

Solar & Photovoltaics · Donneloye · Since 2024

Correvon Solaire SA installs photovoltaic solar systems and provides related services such as energy storage, electric vehicle charging stations and smart energy management. The company also handles administrative procedures, roof and carpentry assessments and designs bespoke carport solutions.

CrameriMT GmbH

Technical Consulting & Engineering · Igis · Since 2021

The core activity of Crameri MT is the planning, installation and maintenance of solar projects, particularly photovoltaic systems, as well as consulting and supporting customers in decarbonization and the use of renewable energies. The company also offers services in the field of e-mobility and smart home solutions.

C. Savary Sàrl

Solar & Photovoltaics · Sâles (Gruyère) · Since 2001

The company C. Savary Sàrl provides services in the fields of heating, plumbing and solar energy. In particular, it installs, maintains and repairs heating systems, sanitary facilities and solar systems, including the installation of thermal and photovoltaic solar modules.

Current AG

Solar & Photovoltaics · Zurich · Since 2002

The core activity of Current AG encompasses the development and investment in renewable energy projects, particularly in the field of solar energy and hydrogen technology. The company focuses on accelerating the transition to a more sustainable and CO2-neutral energy future by developing innovative solutions such as high-altitude solar installations, hydrogen generators, and compressors. Additionally, the company is also active in shipping and shipbuilding, acting as a business facilitator and financial arranger.

Dachplan AG

Specialized Construction Activities · Horn · Since 2023

Dachplan AG provides roof, facade and solar services, including flat and pitched roofs, ventilated facades, waterproofing, solar installations and roof and facade maintenance. The company offers maintenance plans and a 24‑hour emergency on‑call service.

Dadi & Dunkel Energy Sàrl

Solar & Photovoltaics · Lausanne · Since 2002

The company dd-energy primarily focuses on services in the field of energy efficiency and sustainability, particularly in Switzerland and the Romandy region. The core activities include: Consulting services in the areas of energy efficiency, Minergie, and CECB; Engineering services for heating, ventilation, and solar systems; Planning and implementation of solar projects; Collaboration with customers and partners to achieve sustainability goals. The company supports private individuals, businesses, and public institutions in implementing energy efficiency measures and utilizing renewable energy sources.

D'Angelo SA

Solar & Photovoltaics · Quartino · Since 1987

The core activity of D'Angelo SA is the sale and installation of thermosanitary systems, including heating, burners, alternative energy, sanitary technology, ventilation and dehumidification, and air conditioning.

DCP Energie GmbH

Solar & Photovoltaics · Neftenbach · Since 2023

The core activity of Sunnewind (DCP Energie GmbH) is the planning, consulting and support of customers in the construction of solar systems, both as a turnkey service and for self-construction. The company offers 360° support for solar systems, including consulting, planning and execution, and enables customers to build and operate their own solar system.

Dealex Anlagenbau GmbH

Technical Consulting & Engineering · Kreuzlingen · Since 2024

Dealex Anlagenbau GmbH designs and implements systems for fire protection, photovoltaic power and security technology. Services include planning, installation and maintenance of fire detection and aerosol extinguishing systems, intrusion and access control systems, photovoltaic installations, commercial and residential energy storage, and EV charging infrastructure.

Deflorin Elektroanlagen GmbH

Electrical Planning & Installation · Flims Dorf · Since 2007

The core activity of Deflorin Flims GmbH encompasses comprehensive electrical installations, IT services, smart home solutions, photovoltaic systems, computer and telecommunications services, including remote maintenance and VoIP telephony.

Delfino Holding SA

Solar & Photovoltaics · Lugano · Since 2018

The core activity of Delfino Holding SA is the marketing and distribution of products and systems for renewable energies, particularly: professional heat pumps for heating, air conditioning and hot water preparation, all-in-one systems for photovoltaics and charging stations, and high-performance batteries for storing solar energy. The company positions itself as an importer and distributor of renewable energy products in Switzerland.

Delta Solar GmbH

Solar & Photovoltaics · St. Margrethen Sg · Since 2000

The core activity of Delta Solar GmbH is the development and manufacture of heat technology products, in particular various types of storage tanks and boilers, such as standard boilers, high-performance boilers, layer charging storage tanks, energy-saving boilers, buffer storage tanks, combination storage tanks and electric boilers.

Deploy Swiss Tech AG

Solar & Photovoltaics · Stans · Since 2021

Deploy Swiss Tech AG distributes the FEEL X® product line and supplies environmentally degradable de-icing and frost-protection additives in granular and liquid forms. The products are used by municipal and urban winter services and for agricultural frost protection; the website provides technical data, dosing guidance and ISO 9001/14001 certificates.

DF-Insta Haustechnik GmbH

Solar & Photovoltaics · Dulliken · Since 2018

The core activity of DF-Insta Haustechnik GmbH is the planning, installation and maintenance of building technology systems, particularly in the areas of heating, plumbing, solar and controlled residential ventilation systems. The company also offers repair and renovation services and works in a network with trade partners to provide a comprehensive range of services.

Diagonal Swiss Sàrl

Solar & Photovoltaics · Courtedoux · Since 2015

The core activity of Diagonal Swiss is the planning, installation and maintenance of photovoltaic systems, as well as the provision of services in the field of roof renovation and sealing, including sheet metal work, waterproofing and insulation. The company offers tailored solutions for private and business customers to promote their energy independence and reduce their energy costs.

Diego Fischer Solar and Engineering

Solar & Photovoltaics · Neuchâtel · Since 2014

Diego Fischer Solar and Engineering provides planning, consulting and turnkey installation of photovoltaic systems and related equipment such as battery storage, electric vehicle charging stations and surplus energy management solutions.

DJO-Energies Sàrl

Solar & Photovoltaics · Cheyres · Since 2023

The core activity of DJO-Energies is the planning, implementation and installation of photovoltaic systems, in particular solar panels and related infrastructure, to support private and commercial customers in the implementation of projects in the field of renewable energy.

dk Haustechnik GmbH

Plumbing & Building Services · Thayngen · Since 2012

dk Haustechnik GmbH specialises in sanitary installations, heating, solar and climate systems, providing planning, installation and maintenance services. The company operates a 24-hour emergency on-call service across its business areas.

DMD Green Capital AG

Solar & Photovoltaics · Meisterschwanden · Since 2022

The core activity of DMD Green Capital AG consists of the acquisition, planning and implementation of solar and wind projects in the field of renewable energies, as well as the brokerage of investment opportunities in these projects for investors.

DOLEFAR SA

Solar & Photovoltaics · Denges · Since 1989

The core activity of Dolefar SA is the planning, installation and maintenance of renewable energy systems, particularly: solar energy (solar panels), heat pumps and water softening systems. The company also provides consulting services for the energy renovation of buildings and supports customers in applying for subsidies for energy-related measures.

DoubleA Solutions GmbH

Solar & Photovoltaics · Grenchen · Since 2025

The core activity of DoubleA Solutions GmbH is the development and provision of solutions in the field of renewable energy (solar) and information technology (IT). Specifically, this includes the planning, installation and optimization of solar systems as well as the provision of IT services aimed at supporting companies in the digitization and optimization of their processes.