Energy Industry in the
Canton of Zurich

WINDCRAFT AG

Since 1993 · 1–10 empl.

The core activity of WINDCRAFT AG is the planning, development and operation of wind energy plants as well as the promotion of renewable energies, in particular wind energy.

Axpo Kompogas Samstagern AG

Since 1994 · 11–20 empl.

Axpo Kompogas Samstagern AG operates a biomass facility for composting and anaerobic digestion and accepts biogenic waste. It processes green waste, food residues and woody material and sells compost, fertilizer and wood products, including packaged garden products.

Kystag Montage AG

Since 1995 · 1–10 empl.

Kystag Montage AG is a company specialising in CNC milling, CNC turning and precision mechanics. It manufactures precision parts, prototypes, single parts, series and assemblies in various materials, and also offers grinding, laser marking and assembly services.

Heiga AG

Since 2003 · 1–10 empl.

The core activity of HEIGA AG is the development, manufacture and distribution of energy-saving boilers and buffer tanks, particularly made of stainless steel, for use in heating and cooling systems.

Kompogas Winterthur AG

Since 2007 · 11–20 empl.

Kompogas Winterthur AG is a company in the energy sector and part of the Axpo Group. It is involved in energy supply, energy solutions, and activities across power generation, trading, and distribution.

Helvetia Trust AG

Since 2007 · 11–20 empl.

The company's core activity is the development, design, production and marketing of combined heat and power units (CHP) as well as the installation and investment in energy-efficient energy generation concepts for customers. The company also provides consulting services and engineering services in the field of combined heat and power (CHP).

R. Schmid Engineering AG

Since 2008 · 1–10 empl.

R. Schmid Engineering AG is a company specialising in gas technology. It designs, manufactures and assembles plant-specific gas system components and supplies gas storage solutions, gas cleaning systems, gas flares and safety valves, and provides engineering, production, installation, commissioning, service and spare parts.

Almus AG

Since 2010 · 1–10 empl.

The core activity of ALMUS AG is the development of products based on solid oxide fuel cell technology (Solid Oxide Fuel Cell Technology), particularly the manufacture of UBOCELL SOFC modules, which generate direct current from hydrogen or reformates derived from fuels such as natural gas, biogas, butane/propane, methanol and ethanol.

Agile Wind Power AG

Since 2010 · 11–20 empl.

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.

Geo-Energie Suisse AG

Since 2010 · 11–20 empl.

The core activity of Geo-Energie Suisse AG is the development and promotion of deep geothermal projects in Switzerland and neighboring countries. The company focuses on the exploration, development and implementation of deep geothermal technologies, including the use of geothermal energy for power generation and storage. It develops pilot projects to demonstrate the technical feasibility and economic viability of deep geothermal power plants and promotes public understanding and acceptance of deep geothermal energy.

Vestas Switzerland AG

Since 2010 · 1–10 empl.

Vestas Switzerland AG provides wind energy solutions, supplying wind turbine products and related services such as design, installation and maintenance for onshore and offshore projects. Its offerings also include parts and repair, digital services, fleet optimisation and project development.

Aker Solutions Hydropower Switzerland AG

Since 2012 · 1–10 empl.

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.

SRM Swiss Renewables Marketplace AG

Since 2013 · 11–20 empl.

The core activity of SRM Swiss Renewables Marketplace AG is to increase the competitiveness of renewable energy plants by securing long-term feed-in tariffs through Power Purchase Agreements (PPAs). To achieve this, the company offers services such as bundling and selling plant packages, organizing workshops for plant owners and operators, and identifying and selling renewable energy production plants.

Open Energy Platform AG

Since 2014 · 11–20 empl.

The core activity of OpenEP is the provision of procurement services and natural gas procurement for its customers, in particular companies that are also shareholders. This also includes services such as portfolio management, balance group management, risk management, sales support and transport management.

Fleco Power AG

Since 2015 · 11–20 empl.

The core activity of Fleco Power is the marketing of renewable energy in Switzerland. This includes in particular: Electricity marketing: taking over and marketing electricity production from renewable sources such as biomass, photovoltaics, hydroelectric power and wind. Flexibility marketing: participating in the balancing energy market through intelligent bundling of plants into a virtual power plant. Plant management: offering individual solutions for optimized plant management to maximize yields. Electricity communities: supporting the formation of local electricity communities and taking over administrative tasks. Fleco Power positions itself as an independent marketer of renewable energy and stands on the side of energy producers.

Investlnvent Energy GmbH, Berlin, Zweigniederlassung Zürich

Since 2015 · 1–10 empl.

Investlnvent Energy GmbH, Berlin, Zweigniederlassung Zürich is a specialised investment boutique that structures and manages climate-friendly direct investments. Its products include funds and tailored mandates focused on renewable energy (wind and solar projects) and timber real-estate, with in-house asset selection, portfolio construction and ongoing monitoring.

Envenion GmbH

Since 2017 · 1–10 empl.

The core activity of Envenion is the development and implementation of individual, CO2-free energy supply systems for customers, particularly through the use of hydrogen technology (Power to Gas) and energy system simulations. This also includes the analysis and optimization of energy consumption, the development of injector burners, and the provision of hydrogen storage systems. Envenion also offers trustee consulting and support for the transition to CO2-free energy supply.

Fu-Gen AG

Since 2017 · 11–20 empl.

The core activity of Fu-Gen is the development, financing, construction and optimization of renewable energy plants and technologies, particularly in the areas of onshore wind, solar energy and energy storage. The company invests in greenfield projects and in high-potential projects along the value chain to pursue its mission of providing future generations with clean and sustainable energy solutions.

Hitachi Energy AG

Since 2018 · 51–100 empl.

Hitachi Energy AG is a company focused on electrification and energy technology. It develops and supplies products, systems, software, and services for power transmission, distribution, substations, transformers, high-voltage equipment, digitalization, and energy consulting.

Siemens Energy AG

Since 2019 · 21–50 empl.

Siemens Energy AG is an energy technology company that develops solutions for the energy transition. Its portfolio includes products, systems, and services for power generation, grid infrastructure, storage, and industrial decarbonization.

Galileo Green Energy GmbH

Since 2019 · 21–50 empl.

The core activity of Galileo Green Energy GmbH is the development, implementation, operation and sale of projects in the field of renewable energies, particularly in wind and solar energy, in over 20 countries. The company offers a comprehensive range of services, including project development, financing, construction and operation of facilities, as well as the marketing of renewable energies.

MorGen Energy AG

Since 2021 · 11–20 empl.

The core activity of MorGen Energy is the development and implementation of green hydrogen ecosystems, including the production, distribution and storage of green hydrogen, to enable the decarbonization of energy-intensive industries and heavy-duty transportation. This also includes the construction of green hydrogen filling stations and the provision of infrastructure solutions for European energy supply.

SolarEdge Technologies (Switzerland) GmbH

Since 2022 · 1–10 empl.

SolarEdge Technologies (Switzerland) GmbH is a company that develops and supplies renewable energy technologies and smart solar solutions for residential, commercial, industrial and utility‑scale applications, including PV inverters, power optimizers, energy storage, EV chargers, grid services and energy‑management software.

Hy24 (Switzerland) AG

Since 2022 · 21–50 empl.

The core activity of Hy24 is investing in and developing projects and companies in the hydrogen economy, particularly in the production, storage, distribution and use of green hydrogen for the decarbonization of industries and transport sectors.

Groupe Curie Wind GmbH

Since 2023 · 21–50 empl.

Groupe Curie Wind GmbH provides engineering and consulting services in the cleantech sector, focusing on the design, construction and commissioning of plants for green hydrogen, green ammonia and sustainable chemical production. Its services include feasibility studies, technology licensing, basic and detailed engineering, project management, procurement and after‑sales technical support.

BW ESS Management GmbH

Since 2023 · 11–20 empl.

The core activity of BW ESS is to unlock the value of energy storage. The company focuses on developing and implementing energy storage solutions to enable a sustainable future.

Thermal PowerTec GmbH

Since 2004 · 1–10 empl.

The core activity of Thermal PowerTec Ltd. is the development and provision of technologies and solutions for the efficient use of thermal energy, particularly in the field of waste heat utilization and heat recovery.

WepfAir AG

Since 2019 · 1–10 empl.

The core activity of WepfAir AG is the development, manufacture and distribution of highly efficient wind turbines for the generation of wind energy.

Elektrizitätswerk der Stadt Zürich

Since 2008 · 500+ empl.·3.1(17)

The core activity of ewz lies in energy production and supply, as well as in the development of solutions for energy and communication. The company is also committed to a sustainable energy future and supports projects that protect and promote the environment.

ads-tec Energy Schweiz GmbH

Since 2023 · 1–10 empl.

ads-tec Energy Schweiz GmbH develops battery-buffered fast charging solutions for electric vehicles. The company provides systems and applications for ultra-fast charging, including use at grid-limited locations.

Borobotics AG

Since 2023 · 11–20 empl.

Borobotics AG develops autonomous drilling systems for geothermal energy extraction. Its core product is the bore robot “Grabowski”, designed for geothermal drilling in confined urban settings.

NewGreenTec International AG

Since 2013 · 11–20 empl.·3.0(2)

The company develops and distributes advanced products for local power supply from renewable resources, particularly wind turbines, wind power plants, controls and inverters in the range up to 50 kW or 50 meters in height.

Swiss Wind Energy AG

Since 2017 · 1–10 empl.

INERSO GmbH

Since 2022 · 1–10 empl.

The core activity of INERSO GmbH is the development and industrialization of energy technologies as well as strategic consulting for their commercial use.

MR H2 AG

Since 2022 · 1–10 empl.

The core activity of mrh2 AG is the production of green hydrogen as an environmentally friendly alternative to fossil fuels. The company aims to produce green hydrogen for various markets and actively contribute to decarbonization.

neuraVolt GmbH

Since 2022 · 1–10 empl.

The core activity of neuraVOLT is the development and provision of data-driven intelligence for digital services in energy systems, particularly in the field of electromobility and charging infrastructure. The company offers software solutions that enable the optimal configuration of charging infrastructure to be planned, the operation of charging stations to be automated and optimized, and user behavior to be analyzed and adapted. The goal is to increase the efficiency and profitability of charging infrastructure projects while maximizing user satisfaction.

Verein Energy Certificate System ECS Schweiz

Since 2009 · 1–10 empl.·5.0(1)

Verein Energy Certificate System ECS Schweiz is a competence centre for guarantees of origin, electricity certificates and electricity labelling, coordinating national activities in these areas. The association supports the operation and development of the Swiss guarantee-of-origin system, facilitates participation in the European certificate market and provides statutes, fee schedules and codes of conduct for its members.

viboo AG

Since 2022 · 11–20 empl.·5.0(1)

The company viboo develops and offers a cloud-based building management platform that can reduce the heating energy demand of buildings by 20-40%. The platform aims to help mitigate the climate crisis by providing a fast and efficient solution for reducing heat consumption in buildings.