Austria
- Energiewerkstatt, wind energy
Czech Republic
Denmark
- Vestas, wind power systems
- LM Glasfiber, blades for wind turbines
- Danfoss, energy efficiency in heating and cooling
- Grontmij , engineering consulting with a focus on sustainability
- Babcock & Wilcox Vølund, converting household waste and bio-fuels into thermal energy
- Brunata, metering equipment for energy-saving solutions
- Rockwool, stone wool insulation
- Topsoe Fuel Cell, fuel cell technology
- Dong Energy, Denmark’s largest energy company
- Novozymes, manufacturer of enzymes (used in the production of bioethanol)
Germany
- Choren, renewable energy
- Enercon, wind turbines
- Repower, wind energy research
- Schmack, biogas technology
- Smart Fuel Cell, fuel cell technology
- SolarWorld, clean energy solutions
Ireland
- Airtricity, wind farms
Spain
- Abengoa Group, sustainable development technologies (including solar, bioenergy, environmental services, information technology, industrial engineering and construction)
- Solúcar, solar energy
- Befesa, recycling, waste management, and water treatment
- Schneider Electric, products and services for the Energy, Transportation, Environment and Public Administration industry segments
- Gamesa, wind turbines, wind farms, and solar energy
- Iberdrola, renewable energies
- Ecotècnia, wind turbine manufacturing and research
- Masisa, wood boards for furniture and interior architecture
- Eólica Navarra, wind fields
- Hera Group, waste treatment
Sweden
- Swentec, Swedish Environmental Technology Council