The number of membership
(As of June 2026, 3)
Individual member
| branch | Hokkaido | Tohoku | Kanto | Chubu | Kansai | Kyusyu | Overseas | Total |
|---|---|---|---|---|---|---|---|---|
| honorary member | 2 | 0 | 34 | 8 | 3 | 2 | 0 | 49 |
| Regular member | 181 | 248 | 14,635 | 19,811 | 4,840 | 585 | 118 | 40,418 |
| Student member | 78 | 89 | 936 | 524 | 484 | 125 | 13 | 2,249 |
| Total | 261 | 337 | 15,605 | 20,343 | 5,327 | 712 | 131 | 42,716 |
Corporate member
| Total | 818 |