Energy technology in the
Canton of Vaud

Gaznat SA Société pour l'Approvisionnement et le Transport du Gaz naturel et renouvelable en Suisse Occidentale

Since 1968 · 21–50 empl.

Gaznat SA Société pour l'Approvisionnement et le Transport du Gaz naturel et renouvelable en Suisse Occidentale is active in the supply and transport of natural and renewable gas in Western Switzerland. The company operates a high-pressure network, procures gas on the markets, and develops projects related to storage, infrastructure safety, and energy innovation.

EREP SA

Since 1980 · 1–10 empl.

EREP SA is a consultancy and engineering firm specializing in the valorisation of organic wastes and effluents, with expertise in methanisation and biogas production and use. The company provides feasibility studies, technical assistance, diagnostics, market studies and training, and supports projects from feasibility through commissioning to operation; it holds ISO 9001 and ISO 14001 certifications.

SolydEra SA

Since 2000 · 51–100 empl.

The core activity of SolydEra is the development and marketing of fuel cell and electrolysis technology, particularly in the field of renewable energy and the energy transition. The company focuses on developing products and solutions that enable the transition to a more sustainable energy supply.

Germaplaket Sàrl

Since 2005 · 1–10 empl.

Germaplaket Sàrl produces, supplies and stores wood chips and provides services including chipping, screening and transport as well as removal of woody residues. The company also operates the 'Xylomesure' system to measure mass, moisture and the energy value of wood chips in real time.

Eaton Manufacturing II GmbH

Since 2005 · 1–10 empl.

Foretnergie SA

Since 2006 · 1–10 empl.

Foretnergie SA operates across the wood supply chain, offering purchase and trade of logs, production and storage of wood chips, sale of firewood, and transport services including special transports. The company also provides logistics and advisory services and holds FSC® certification.

GreenGT SA

Since 2008 · 11–20 empl.

The core activity of GreenGT is the development and integration of fuel cell systems, particularly for applications in mobility and energy. The company supports Original Equipment Manufacturers (OEMs) in the development and production of fuel cell systems, from the concept phase to series production.

Sun Glaze SA

Since 2008 · 1–10 empl.

The core activity of Sun-Glaze SA is the development, manufacture and distribution of high-performance, lightweight and corrosion-resistant thermal solar collectors that can be used for hot water preparation and heating.

Energie Naturelle Mollendruz SA

Since 2009 · 11–20 empl.

The core activity of Energie Naturelle Mollendruz SA is the planning, construction and management of wind farms, in particular the wind farm on the high plateau east of the Col du Mollendruz, with the aim of producing renewable energy in the form of wind power.

écam Sàrl

Since 2010 · 1–10 empl.

The company's core activity is the development and distribution of products and solutions for emergency power supply and energy autonomy, particularly in the fields of electronics and renewable energies, such as UPS systems (uninterruptible power supply), solar and wind power plants, emergency lighting and power supply for emergency situations.

Eoliennes de Provence SA

Since 2012 · 11–20 empl.

The core activity of the company "Eoliennes de Provence" is the planning, development and implementation of wind energy projects, particularly the construction of wind farms for the production of renewable energy.

Hydro Operation International SA

Since 2014 · 11–20 empl.

The company's core activity is the transformation of hydroelectric energy in Africa by providing services in the areas of: Operation and Maintenance (E&M) of hydroelectric plants, Project Management, Asset Management, Rehabilitation of power plants, Specialized Engineering Services, and Training and Knowledge Transfer. The company focuses on long-term maintenance and operation of hydroelectric plants in Africa to ensure a reliable and sustainable energy supply.

Future Energy SA

Since 2014 · 1–10 empl.

The core activity of Future Energy SA is the development, implementation and marketing of renewable energy systems, particularly in the following areas: Solar energy (photovoltaics, thermosolar), biogas energy, wind energy, e-mobility and heating systems. The company offers products and services to support customers in the implementation of renewable energy systems, including photovoltaic modules, mounting systems, inverters, e-mobility solutions and heating systems. Future Energy SA positions itself as an expert in renewable energy systems and offers solutions for private households, companies and industries to cover their energy needs with renewable energy and reduce their ecological footprint.

Yersin Energie Sàrl

Since 2014 · 1–10 empl.

Yersin Energie Sàrl provides solar energy services including system design, installation, maintenance, battery storage integration and energy consulting for residential, commercial and industrial projects.

BavoisEole SA

Since 2016 · 1–10 empl.

The core activity of BavoisEole SA is the planning, development and realization of wind farms, particularly the Parc éolien de Bavois in the canton of Vaud, Switzerland. The company focuses on the production of renewable energy through wind power, thereby covering the energy needs of households and municipalities.

Eoljoux SA

Since 2016 · 21–50 empl.

Eoljoux SA is a project to develop and operate a wind farm of seven turbines with about 21 MW of installed capacity, intended to produce renewable electricity (approximately 55 million kWh per year).

MEMBRASENZ Sàrl

Since 2019 · 1–10 empl.

The core activity of Membrasenz is the development, production and marketing of gas-separating membranes for alkaline electrolyzers and other energy conversion systems.

SWISS GEO ENERGY SA

Since 2019 · 11–20 empl.

The core activity of Swiss Geo Energy is the exploration, storage and valorization of renewable resources from the underground in Switzerland and Europe. Specifically, this includes: The use of geothermal energy for heat, cold and electricity production; The identification and characterization of suitable sites for seasonal energy storage; The safe and efficient storage of CO2 from industrial sources; The sustainable use of water resources; The exploration and development of projects in the field of renewable energies, in particular geothermal energy and geo-storage. The company focuses on the development of projects and facilities that contribute to accelerating the energy transition and reducing greenhouse gas emissions.

SoHHytec SA

Since 2020 · 11–20 empl.

The core activity of SoHHytec is the development and provision of sustainable technologies for the production of green hydrogen and renewable energy, particularly for use in various industries such as the chemical industry, space sector and micro-grid provision. The company focuses on the development of patented technologies that offer a cost-effective and environmentally friendly solution for the production of green hydrogen and renewable energy.

INERGIO Technologies SA

Since 2020 · 11–20 empl.

The core activity of INERGIO Technologies SA is the development and manufacture of advanced fuel cell-based power generators that deliver clean, reliable and efficient electricity, independent of grid supply and weather conditions.

Inocel SA

Since 2021 · 1–10 empl.

Inocel SA develops and supplies zero-emission hydrogen fuel-cell generators and integrated energy solutions for off-grid, backup and mobile power applications. The company offers modular GEN‑Z generator models (e.g. GEN‑Z 300/600/1300), a 300 kW fuel-cell stack, and end-to-end services covering fuel supply, installation, monitoring and maintenance.

Enerdrape SA

Since 2021 · 1–10 empl.

Enerdrape SA develops modular geothermal panels that use underground spaces such as car parks and tunnels as sources of energy for heating and cooling buildings. The company also provides feasibility and system-design studies, along with support for installation, commissioning and performance monitoring.

Leclanché SBS SA

Since 2023 · 21–50 empl.

Leclanché SBS SA designs and manufactures specialized low-voltage battery systems for demanding applications such as robotics and AGV, medical devices, industrial tools and defence, integrating control electronics, custom enclosures and charging equipment.

Petrosvibri S.A.

Since 1980 · 11–20 empl.

Eiffage Energie Systèmes Multitechniques SA

Since 2017 · 1–10 empl.

The company provides services in the field of technical building equipment and facility management. The core activities include planning, installation, maintenance and servicing of heating, sanitary, ventilation, air conditioning and cooling systems as well as water and gas pipeline networks. In addition, the company offers energy solutions, including energy contracting, and facility management services to extend the lifespan of installations and improve energy efficiency.

Capriati Frères Electricité Sàrl

Since 2022 · 1–10 empl.·4.5(23)

Capriati Frères Electricité Sàrl is an electrical services company offering photovoltaic systems, electrical planning and installations, lighting design, security and smart‑home solutions, e‑mobility charging installations and OIBT compliance checks.

Paul Vaucher Comptage d'Energie SA

Since 2018 · 1–10 empl.·3.9(16)

Paul Vaucher Comptage d'Energie SA provides energy and consumption metering services, including supply, installation and replacement of meters as well as remote reading. The company prepares billing for heating, hot and cold water and electricity, and offers monitoring platforms and central units for remote data collection and reporting.

Leclanché E-Mobility SA

Since 2021 · 11–20 empl.·3.8(28)

Leclanché E-Mobility SA develops and supplies battery and energy storage systems for the electrification of transport, including cells, modules, battery management systems and energy management software. Its e-Transport solutions cover e-rail, e-marine and electric commercial vehicles and include modular packs with air or liquid cooling and tailored system integration.

Amaudruz Énergies SA

Since 2013 · 1–10 empl.·4.1(9)

Amaudruz Énergies SA is the energy division of Amaudruz SA offering renewable energy and solar services. Its activities include design and installation of photovoltaic systems, solar contracting, smart energy management and metering, battery storage, microgrids and aggregation of local consumption (RCP), and electric vehicle charging infrastructure, as well as turnkey solutions in partnership with heating and roofing contractors.

H2ValSmart Sàrl

Since 2021 · 1–10 empl.

The core activity of H2Valais is the development and provision of solutions for hydrogen mobility, particularly for freight transport. This includes the development and operation of production, storage and distribution systems for hydrogen, including the use of electrolysers and Vanadhy technology. In addition, the company offers engineering services for the development of hydrogen-related processes for residential and industrial buildings.

Ofatec S.A.

Since 1980 · 1–10 empl.·5.0(2)

The core activity of Ofatec SA is the planning, installation, maintenance and repair of energy systems, in particular emergency power supplies (UPS), batteries, generators, turbines and other electrical installations. The company also offers services such as thermography, maintenance and repair of electrical installations, and supports customers in the implementation of renewable energies.

Innergia SA

Since 2018 · 101–500 empl.·3.7(3)

Innergia SA develops solutions for decentralised energy transition with municipalities, using local renewable resources. It prepares energy roadmaps and structures municipal energy infrastructure projects, including their financing and implementation.

Groupe E Entretec SA

Since 2018 · 101–500 empl.·5.0(1)

Groupe E Entretec SA is a company within the Groupe E group. The group produces and distributes energy and offers, among other services, electrical installations, heating, energy-efficiency advice and technical infrastructure solutions.

NovaMea SA

Since 2023 · 11–20 empl.

The core activity of NovaMea SA is the development and manufacturing of membrane electrode assemblies (MEA) for the production of green hydrogen. In particular, the company focuses on the development of cost-effective, scalable and efficient MEA technologies for use in electrolyzers and fuel cells.

Sorane S.A. Société de Rationalisation de l'Energie

Since 1977 · 1–10 empl.·5.0(1)

Sorane S.A. Société de Rationalisation de l'Energie is an engineering consultancy focused on energy rationalization for buildings, providing energy design, building physics, dynamic simulations, audits and optimisation of technical systems. The firm also engages in applied research, scientific mediation, development of monitoring tools and training, and supports certification processes.

Capriati Energie Sàrl

Since 2025 · 1–10 empl.·4.5(23)

Capriati Energie Sàrl provides photovoltaic systems and energy consultancy, covering system planning and installation for residential and commercial projects.

Sinnergia SA

Since 2020 · 101–500 empl.·3.7(3)

Sinnergia SA provides municipalities with a model for a self‑financed local energy transition and supports the establishment of a private municipal industrial services company (SIC SA) to produce and distribute thermal and electrical energy from local renewable resources at cost. The organisation handles technical integration, project planning and risk management, and arranges financing of infrastructures through municipality‑guaranteed bond issues in partnership with Vontobel.

SunFlower Grid SA

Since 2025 · 1–10 empl.

SunFlower Grid SA provides digital solutions to manage and bill collective self-consumption groups and to enable local sale of surplus solar energy. Services include metering and real-time monitoring, transparent billing and invoicing, user dashboards, APIs and white‑label options, plus support for meter installation and integration with existing systems for property owners, installers and distribution operators.