A new administration members of IMSS started April 1st, 2020.
| Institute of Materials Structure Science | Director | KOSUGI, Nobuhiro |
| Deputy Director | SETO, Hideki | |
| Deputy Director | ADACHI, Shin-ichi | |
| SR Science Division Ⅰ | Head | AMEMIYA, Kenta |
| SR Science Division Ⅱ | Head | SENDA, Toshiya |
| Neutron Science Division | Head | ITOH, Shin-ichi |
| Muon Science Division | Head | SHIMOMURA, Koichiro |
| Photon Factory | Head | FUNAMORI, Nobumasa |
| Slow Positron Facility | Acting Head | KOSUGI, Nobuhiro |
| Structural Biology Research Center | Head | SENDA, Toshiya |
| Center for Integrative Quantum Beam Science | Head | AMEMIYA, Kenta |
