At IAP were working during 2018/2019 in total 138 persons, of them 30 scientists, 19 scientific-technical staff, 10 administration, 18 PhD students, 5 bachelor and master students, and 21 student and scientific assistants. Additionally, 29 trainees worked at IAP. 30 scientists and students from 10 countries were long-term guests at IAP. The IAP covers 38 permanent positions, temporary positions were covered by annex sources and third-party funding. Of the permanent positions, 16 were held by scientists.