Members
as of 17 September 2025
| Germany | 1002 |
| Italy | 465 |
| United Kingdom | 372 |
| France | 313 |
| Spain | 299 |
| Switzerland | 278 |
| Poland | 251 |
| The Netherlands | 209 |
| Greece | 183 |
| Denmark | 180 |
| Sweden | 179 |
| Austria | 144 |
| Ukraine | 137 |
| Norway | 120 |
| Turkey | 116 |
| Czech Republic | 106 |
| Belgium | 105 |
| Finland | 103 |
| Romania | 102 |
| Hungary | 83 |
| Israel | 79 |
| Ireland | 76 |
| Russian Federation | 75 |
| Serbia | 72 |
| Croatia | 70 |
| Bulgaria | 68 |
| Iceland | 67 |
| Slovenia | 60 |
| Lithuania | 56 |
| Portugal | 44 |
| Slovakia | 41 |
| Estonia | 37 |
| Luxembourg | 31 |
| Bosnia and Herzegovina | 30 |
| Georgia | 28 |
| Latvia | 28 |
| Cyprus | 27 |
| Kosovo | 24 |
| Azerbaijan | 21 |
| North Macedonia | 20 |
| United States | 18 |
| Montenegro | 13 |
| Greenland | 11 |
| Palestinian Territories | 11 |
| Albania | 11 |
| Armenia | 9 |
| Malta | 8 |
| Belarus | 7 |
| Moldova | 6 |
| Kazakhstan | 3 |
| Australia | 2 |
| Andorra | 1 |
| Kyrgyzstan | 1 |
| Canada | 1 |
| Hong Kong | 1 |
| Mexico | 1 |
| India | 1 |
| Chile | 1 |