Agricultural Institute of Slovenia (KIS)
Carbon Sequestration by Composting around Mount Etna
Latvian State Forest Research Institute “Silava”
Institute of Sustainable Development of Landscapes of the Earth e.V. (DUENE)
Naturland e.V.
Agricultural Institute of Slovenia
Institute of Field and Vegetable Crops
Manfred-Hermsen-Stiftung
Danube Delta National Institute for Research and Development (DDNI)
“Green Jackets” Bronte