1. Faculty of Agricultural Sciences and Food, Ss. Cyril and Methodius University in Skopje, Macedonia
2. Company for Applied Research and Permanent Education in Agriculture, Faculty of Agricultural Sciences and Food, Ss. Cyril and Methodius University in Skopje, Macedonia
3. State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, Beijing, China
4. Department of animal breeding and genetics, Swedish University of Agricultural Sciences, Uppsala, Sweden
5. Norwegian Beekeepers Association, Kløfta, Norway
6. Faculty of Agrobiotechnical Sciences Osijek, University of Osijek, Croatia
7. Centre for applied life sciences Healthy Food chain Ltd (CALIS), Osijek, Croatia
8. Agricultural Institute of Slovenia, Ljubljana, Slovenia
9. ZG „Makedonska pcela“ - Negorci (MacBee) - Macedonian association for preservation of Macedonian native honey bee (Apis mellifera macedonica), Gevgelija, Macedonia
10. Skopje, Macedonia
11. formerly Bee Research Institute, Hohen Neuendorf, Germany
12. ERBEL, Iberian Bee Breeders Association, Zaldibia, Spain
13. Biocenter, Behavioral Physiology and Sociobiology, University of Wuerzburg, Wuerzburg, Germany
14. Kirchhain, Germany