Energy Industry

Géothermie Préalpes SA 

Bulle · Since 2022

The core activity of Gruyère Energie SA and Géothermie Préalpes SA consists of the exploration and utilization of geothermal energy, particularly through the implementation of measurement campaigns to explore the subsoil and the development of projects for the extraction of geothermal heat.

Geothermie Thurgau AG 

Arbon · Since 2024

Geothermie Thurgau AG conducts geological prospecting and data collection as part of the TEnU 2030 project to generate baseline information for deep geothermal use. It compiles and publishes subsurface data (deeper than 400 m) to support evaluation of potential for heat and power production, deep groundwater, heat storage, reservoirs and CO2 sequestration.

Germaplaket Sàrl 

Yverdon-Les-Bains · Since 2005

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.

GE Steam Power Switzerland GmbH 

Baden · Since 2019

GhenPower SA 

Bellinzona · Since 2023

Glattstrom Buchholz AG 

St. Gallen · Since 2004

Greenea Geneva SA 

Geneva · Since 2019

Greenea is a broker for renewable energies and biofuels. The core activities include: trading in biofuels, bio-certificates and raw materials; brokerage of energy saving certificates (EEC) and carbon credits; trading in GO/EAC certificates and Power Purchase Agreement (PPA) contracts; consulting and support in the development of strategies for renewable energies and biofuels; and brokerage of contracts for the purchase of renewable energy and biogas. Greenea supports companies in implementing their energy and climate strategies and offers tailored solutions for the transition to renewable energies.

Green Energy Venture Engineering AG 

Lyssach · Since 2023

Green Energy Venture Engineering AG develops and delivers renewable energy projects from concept to operation. The firm provides market intelligence and technical advisory, structures project financing, performs owner’s engineering and application/EPC management, and supports energy marketing and PPA/ECG solutions.

Green Energy Venture AG 

Lyssach · Since 2006

Green Energy Venture AG develops and delivers renewable energy projects from concept to operation. The company provides market intelligence and advisory, technical advisory and due diligence, project financing, owner’s engineering, application and EPC management, and energy marketing services including Energy Community Generation.

GreenGT SA 

Le Mont-Sur-Lausanne · Since 2008

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.

EuraLink SA 

Geneva · Since 2021

EuraLink SA is a company providing international trade and consulting services focused on renewable energy and solar technologies. Its services include import and export of solar equipment, strategic sourcing, contract management and the supply of solar modules, inverters, battery storage and autonomous solar air-extractor systems.

Gridlink AG 

Zug · Since 2023

The core activity of Gridlink AG is the development and implementation of innovative solutions for an efficient and future-proof energy infrastructure, particularly in the areas of Smart Metering and Smart Grid. The company offers consulting services, planning and implementation of solutions for energy suppliers and network operators to enable sustainable energy supply.

Groupe Curie Wind GmbH 

Winterthur · Since 2023

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.

Gruyère Hydrogen Power SA 

Bulle · Since 2021

H2 Bois SA 

Glovelier · Since 2021

The core activity of Groupe Corbat is the valorization of wood from regional forests, particularly in the production of wood products such as solid wood, construction timber, wood construction, wood cladding, parquet, outdoor wood, outdoor furniture, signage, railway sleepers, pellets and hydrogen.

H2REMA Sàrl 

Lausanne · Since 2024

The company REMA develops and manufactures electrolyzers for the production of green hydrogen. The company's core activity lies in the development of cost-effective and scalable solutions for hydrogen production, particularly through the use of anion exchange membranes (AEMs) and fluid mechanics. The company offers various products, including the REMA Be1 and REMA We1, which are suitable for small to medium-scale applications.

Haefely AG 

Basel · Since 1999

Haefely AG develops and manufactures high-voltage test systems, EMC equipment and instruments for manufacturers of power, distribution and instrument transformers, cables and switchgear. The company also provides services including calibration and testing, spare parts, rentals, repairs, installation and commissioning, upgrades, maintenance, and customer support and engineering consulting.

Haral Energie AG 

Baar · Since 2023

The core activity of Haral Energie AG is the planning, consulting and implementation of biogas plants, particularly for agricultural businesses, for the production of heat and electricity from farm manure.

HAVECO AG 

Zofingen · Since 2016

HAVECO AG provides services and products for electricity utilities, infrastructure operators, industry and public authorities. Its offerings include engineering services, proprietary products and the integration of selected third‑party products, covering project planning through commissioning, as well as system solutions, energy plant construction, project engineering and network construction. The company holds SN EN ISO 9001:2015, 14001:2015 and SN EN ISO 45001:2018 certifications.

Heiga AG 

Otelfingen · Since 2003

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.