1'465 companies found
Agile Wind Power AG
Dübendorf · Since 2010
The core activity of Agile Wind Power AG is the development and implementation of innovative solutions for renewable energy generation, particularly through the development of vertical wind turbines, such as the "Vertical Sky" wind turbine.
AGV CONSULTING SAGL
Lugano · Since 2019
AGV CONSULTING SAGL is a consultancy providing outsourcing services for logistics, supply and portfolio management in the gas and power sector. Its services include support for regulatory authorisations, management of SII system flows, procurement contract negotiation and operational logistics for distribution and balancing users.
A.H.T. Advanced Heating Technologies International Group SAGL
Lugano · Since 2015
A.H.T. Advanced Heating Technologies International Group SAGL develops and supplies heating systems based on amorphous metal ribbon and powder technologies for domestic, commercial and industrial indoor and outdoor applications. Its product range includes underfloor heating mats, outdoor snow‑ and ice‑melting ribbons and heat‑tracing elements, with certifications from international test bodies.
Aker Solutions Hydropower Switzerland AG
Glattbrugg · Since 2012
Aker Solutions Hydropower Switzerland AG provides engineering, products and services for hydropower projects, including turbine technology, control systems and automation, as part of Aker Solutions’ renewable energy offerings.
Alenko AG
Zurich · Since 1988
Alenko AG develops and implements projects in renewable energy and building services, focusing on geothermal systems, combined heat and power and integrated energy concepts. The company provides project engineering, technical consulting, feasibility studies, expert reports and energy consumption optimisation for buildings and plants.
Alphasynt GmbH
Egliswil · Since 2020
The core activity of AlphaSYNT is the development and implementation of technologies for the production of renewable energy carriers through CO2 upcycling, particularly through Power-to-X processes. This includes the conversion of electrical energy into chemical energy (gas) and liquid energy carriers (e-fuels), as well as the production of biomethane through innovative biomass conversion processes. The company offers services and products in the field of renewable energies, with the goal of reducing fossil CO2 emissions and increasing supply security.
Alpiq AG
Olten
Alpiq AG is an energy company that produces electricity and provides energy services. It operates a diversified power-plant portfolio and offers energy trading, asset management, energy management and solutions such as storage, renewable-asset operation and power and gas supply.
Alpiq Hydro Aare AG
Boningen · Since 2000
Alpiq Hydro Aare AG operates and maintains hydropower plants and dam structures. The company is the operator of the Winznau weir and is responsible for renovation and maintenance work on its hydro installations.
AMICS SA
Le Lignon · Since 2002
The core activity of AMICS is the development and provision of automation solutions for the environment, energy production and energy distribution. In particular, the company focuses on the automation of plants for water treatment, waste recycling, thermal energy generation and energy distribution.
Andion Swiss SA
Lugano · Since 2019
Andion is a global provider of services and solutions in the field of renewable energy, particularly in the planning, financing, construction and operation of renewable energy projects. The company's core activities include the development, construction and operation of renewable energy projects, such as wind, solar and biomass projects.
Andi Trüssel Sunmachine, ATSuma Engineering
Frenkendorf · Since 2008
The core activity of ATSuma Engineering is the development and deployment of renewable energies, particularly the use of Stirling engines for heating purposes and decentralized power generation using pellets.
inovolta ag
Goldau · Since 2023
inovolta ag designs and delivers energy infrastructure, manufactures and installs switchgear, and implements renewable energy systems and electrical installations. Services include project planning and construction of distribution and transformer stations, photovoltaic systems with battery storage, charging and energy‑management solutions, and operation and maintenance of electrical installations.
anexsys GmbH
Bätterkinden · Since 2019
The core activity of anexsys GmbH is the provision of services in the field of energy efficiency, renewable energy and district heating.
Appenzeller Wind AG
Oberegg · Since 2015
The company's core activity is the planning, development and operation of wind power plants for the production of renewable electricity.
Arnold AG
Delémont · Since 2021
Arnold AG is part of BKW’s Infra Services group and provides construction and maintenance services for network infrastructure. Its services include project planning, cable laying, overhead-line construction, installation and commissioning, maintenance and fault repair, and a 24/7 emergency service across the energy, telecommunications, mobility and water sectors.
Associazione TicinoEnergia
Bellinzona · Since 2014
Associazione TicinoEnergia provides information and neutral orientation on sustainable and efficient energy solutions for citizens, municipalities, professionals and businesses. The association offers free initial consultations, organises training and events, supports building energy certification processes (Minergie, CECE, SNBS) and provides information on incentives and related programmes.
Atelier Energiezukunft AG
Münchenstein · Since 2019
Atelier Energiezukunft AG specializes in the holistic and sustainable development of energy networks, area and contracting projects. The company's core activity includes the development and implementation of solutions for heat and cold supply, particularly in the field of energy networks, contracting services and the use of regional energy sources. This also includes overall project management, the development of business areas, the optimization of heat and cold networks, as well as supporting energy suppliers and municipalities in the development of energy projects.
ATHERYON HOLDING AG
Zug · Since 2024
ATHERYON HOLDING AG develops and operates biomethane production facilities that convert organic waste into biomethane using semi‑dry digestion technology, and provides biomethane supply and related services to sectors including high‑end hospitality. Services include organic waste management programs, decentralized storage units (Pods), CO2 supply for water remineralization, and taxonomy/certification support.
Aurelis SA
Brunnen · Since 2006
The core activity of ASA Energy is the optimization of energy prices for companies in Switzerland. To this end, the company procures energy (electricity) and offers its customers a customized energy price that is more favorable than the price of the local basic supplier. ASA Energy takes over the purchase of electricity and offers a price guarantee to ensure that customers benefit from favorable energy prices in the long term.
Axpo Grid AG
Baden · Since 2012
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Source: Federal Statistical Office, UID register