The number of membership
(As of June 2026, 8)
Individual member
| branch | Hokkaido | Tohoku | Kanto | Chubu | Kansai | Kyusyu | Overseas | Total |
|---|---|---|---|---|---|---|---|---|
| Emeritus members | 2 | 0 | 35 | 8 | 4 | 2 | 0 | 51 |
| Regular member | 193 | 247 | 14,828 | 20,566 | 4,900 | 660 | 128 | 41,522 |
| Student member | 94 | 137 | 1,388 | 723 | 721 | 185 | 52 | 3,300 |
| Total | 289 | 384 | 16,251 | 21,297 | 5,625 | 847 | 180 | 44,873 |
Corporate member
| Total | 808 |