1. Ss. Cyril and Methodius University in Skopje, Institute of Agriculture, Skopje, Republic of Macedonia
2. Terra Consulting, Skopje, Republic of Macedonia
3. Ss. Cyril and Methodius University in Skopje, Faculty of Agricultural Sciences and Food, Skopje, Republic of Macedonia
4. State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
5. Swedish Agricultural University, SLU, Uppsala, Sweden
6. CREA Research Centre for Agriculture and Environment, Bologna, Italy
7. LLH Bee Institute Kirchhain, Germany
8. INRAE UR406 Abeilles et Environnement, Avignon, France
9. University of J.J. Strossmayer in Osijek, Faculty of Agrobiotechnical Sciences Osijek, Osijek, Croatia
10. Carreck Consultancy Ltd, Shipley, West Sussex, United Kingdom
11. University of Sussex, Falmer, Brighton, East Sussex, United Kingdom
12. National Research Institute of Horticulture, Puławy, Poland
13. BeeSources, Bologna, Italy
14. Department of Apiculture, Institute of Animal Science, ELGO ‘DIMITRA’, Nea Moudania, Greece
15. ConsulTech, Berlin, Germany
16. ApiPhil, Kirchhain, Germany