- University of Stirling, Scotland, UK
- Dundee University, Scotland, UK
- Complutense University of Madrid, Spain
- The University of Applied Sciences, Düsseldorf, Germany
- Montpellier Supagro, France
- PXL University College, Hasselt, Belgium
- AQAS e.V. (Agency for quality assurance by Accreditation of Study Programmes, Registered Association [e. V.]), Germany
- Johann Heinrich Von Thunen-Institute, Institute of International Forestry and Forest Econs., Germany
- French Engineering Schools, France
- Friedrich-Alexander Universität Erlangen-Nürnberg (FAU), Germany
- Hungarian Volunteer League Association, Hungary
- Inonu University, Turkey
- GIZ – Green People’s Energy Project, Germany
- Research Institute for Water and Waste Management at RWTH Aachen (FiW), Germany
- Vrije University Amsterdam, Netherlands