List of participating institutions
XRISM is being developed under an international collaboration of JAXA, NASA, and ESA. With NASA's close cooperation, this project has advanced as a joint project. In addition to the three space agencies, more than 100 astrophysicists and experts from universities and research institutes from Japan, the United States, and Europe have joined to contribute to the satellite development, development of observation instruments and data processing software, and to further formulate the scientific observing plan.
Planning participating organization















































Development team and leaders
Project Manager
Hironori Maejima
ISAS/JAXA
Principal Investigator
Makoto S. Tashiro
ISAS/JAXA, Saitama University
Project Engineer
Kenichi Toda
ISAS/JAXA
Project Scientist
Kyoko Matsushita
Tokyo University of Science
Deputy Project Scientist
Hiroya Yamaguchi
ISAS/JAXA
Project Manager
Lillian Reichenthal
NASA/GSFC
co-PI
Richard Kelley
NASA/GSFC
Mission Systems Engineer
Leslie Hartz
NASA/GSFC
Mission Scientist
Robert Petre
NASA/GSFC
Project Scientist
Brian Williams
NASA/GSFC
Project Scientist
Matteo Guainazzi
ESA
Deputy Project Scientist
Elisa Costantini
SRON
Resolve
Instrument Manager (JAXA)
Yoh Takei
ISAS/JAXA
Instrument PI (JAXA)
Yoshitaka Ishisaki
Tokyo Metropolitan University
Instrumet sub-PI (JAXA)
Ryuichi Fujimoto
Kanazawa University
Instrument Manager (NASA)
Joy Henegar-Leon
NASA/GSFC
Instrumet PI (NASA)
Richard Kelley
NASA/GSFC
Lead Instrument Systems Engineer (NASA)
Gary Sneiderman
NASA/GSFC
Xtend
Instrument Manager
Hiroshi Tomida
ISAS/JAXA
Instrument PI
Koji Mori
Miyazaki University
Instrumet deputy-PI
Hiroshi Nakajima
Kanto Gakuin University
Former Instrument PI
Kiyoshi Hayashida
(Osaka University)
Science/Mission Operations
Science Operation Center Lead (JAXA)
Yukikatsu Terada
Saitama University
Science Data Center Lead (NASA)
Matt Holland
NASA/GSFC
Mission Operations Lead
Shin Watanabe
ISAS/JAXA