Membership Status at 01/01/2020
Please click on each country for details of Society| Member Society Country | No. of members in each society |
| Albania | 7 |
| Austria | 620 |
| Bulgaria | 129 |
| Croatia | 50 |
| Czech Republic | 45 |
| Denmark | 315 |
| France | 105 |
| Georgia | 66 |
| Germany | 6241 |
| Greece | 110 |
| Hungary | 5 |
| Israel | 110 |
| Italy | 2220 |
| Latvia | 215 |
| Lithuania | 149 |
| Moldova | 172 |
| Netherlands | 85 |
| Norway | 295 |
| Poland | 332 |
| Portugal | 197 |
| Romania | 205 |
| Russia | 333 |
| Serbia | 53 |
| Slovakia | 30 |
| Slovenia | 42 |
| Spain | 570 |
| Sweden | 37 |
| Turkey | 101 |
| United Kingdom |
1543 |
| Ukraine |
49 |
| Associate Societies at 01/01/2020 |
| Country | No. of members in society |
| Switzerland | 625 |
| Berlin-Bradenburg US | 35 |