| A/A | ACRONYM | ORGANIZATION |
| 1 | AI4LAM | AI4LAM – Artificial Intelligence for Libraries, Archives and Museums |
| 11 | CARARE | CARARE CONNECTING ARCHAEOLOGY AND ARCHITECTURE IN EUROPE |
| 12 | CIGRE | CIGRE |
| 16 | CRESYM AISBL | CRESYM AISBL/COLLABORATIVE RESEARCH FOR ENERGY SYSTEM MODELLING/MEMBERSHIP FEE |
| 28 | EUROPA NOSTRA | Europa Nostra |
| 54 | PHOTOCONSORTIUM | PHOTOCONSORTIUM INTERNATIONAL CONSORTIUM FOR PHOTOGRAPHIC HERITAGE |
| 60 | TIMES MACHINE | TIMES MACHINE |
| 71 | MICHAEL CULTURE ASSOCIATION | ΜΙCHAEL CULTURE ASSOCIATION (AISBL) |
