- RAS
- Razi University of Kermanshah
- Regen Farmer
- RegenFarmer
- Research Institute
- Research Institute for Agricultural, Fisheries and Food
- Research Institute for Nature and Forest
- Research Institute of Organic Agriculture - Forschungsinstitut für biologischen Landbau
- Research Institute of Silva Taroucy for Landscape and Ornamental Gardening
- Rheinische Friedrich-Wilhelms-Universität Bonn