3'202 companies found
DCP Energie GmbH
Neftenbach · Since 2020
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
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
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
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
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
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
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
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
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
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
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
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
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
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.
Drohnen-Netz Ackermann
Rheinau · Since 2024
The core activity of DrohnenSolarService is the provision of drone-based services for the energy and building technology sector, particularly in the areas of: thermal imaging and energy diagnostics for solar systems, single-family homes, multi-family homes, district heating networks and industrial buildings; drone photogrammetry and 3D building surveys for architects, real estate, construction documentation and owner accompaniment; inspections and checks of solar systems, district heating networks and buildings using drones; and aerial rescue operations, including fawn rescue and veterinary medicine. The company also provides price lists and quote requests for these services.
DT INTERNATIONAL SA
Geneva · Since 2004
The core activity of DTI-Energies is the conception, implementation and maintenance of public and professional outdoor lighting infrastructures, primarily powered by solar energy.
Dunkel & Schürch AG, Elektrische Anlagen
Bubendorf · Since 1979
Dunkel & Schürch AG, Elektrische Anlagen designs, installs and maintains electrical installations and provides planning, project engineering and service work. Services include new builds and renovations, photovoltaic systems, KNX and digitalSTROM bus systems, supply and installation of household appliances, and periodic electrical inspections.
Dura Haustechnik GmbH
Schliern B. Köniz · Since 2023
The core activity of Dura Haustechnik is the planning, installation and maintenance of heating, sanitary and solar systems for residential and commercial buildings. The company offers innovative and sustainable solutions in the fields of heating, sanitation and solar technology, with the goal of creating living spaces that are tailored to the needs of customers, sustainable and energy-efficient.
DURLEMANN ENERGIES SA
Chêne-Bourg · Since 1985
The core activity of Durlemann Energies is the installation, maintenance and repair of heating systems, including renewable energy systems such as pellet heating, photovoltaic systems and geothermal energy. The company also offers energy consulting, planning and services, including energy audits and optimization.
Durrer Severin Energie GmbH
Alpnach Dorf · Since 2018
The core activity of Durrer Severin Energie GmbH is the planning, installation and maintenance of photovoltaic systems and air conditioning systems, with the goal of producing renewable energy and reducing energy consumption.
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Source: Federal Statistical Office, UID register