Membership Status at 01/10/2021
Please click on each country for details of Society| Member Society Country | No. of members in each society |
| Albania | 7 |
| Austria | 511 |
| Bulgaria | 129 |
| Croatia | 50 |
| Czech Republic | 54 |
| Denmark | 322 |
| France | 409 |
| Georgia | 50 |
| Germany | 6538 |
| Greece | 112 |
| Hungary | 5 |
| Israel | 110 |
| Italy | 2402 |
| Latvia | 241 |
| Lithuania | 175 |
| Moldova | 172 |
| Netherlands | 105 |
| Norway | 200 |
| Poland | 331 |
| Portugal | 198 |
| Romania | 318 |
| Russia | 301 |
| Serbia | 53 |
| Slovakia | 30 |
| Slovenia | 42 |
| Spain | 609 |
| Sweden | 43 |
| Turkey | 92 |
| United Kingdom |
1567 |
| Ukraine |
52 |
| Affiliate Member Societies at 01/10/2021 |
| Affiliate Member Society | No. of members in society |
| Switzerland | 528 |
| Berlin-Bradenburg US | 35 |