19 Members (excluding the associate or suspended members but including the countries represented on their behalf) [The rulers are not necessarily the representatives in the organisation. ] :
| | AUSTRIA | (Vienna) | | President Alexander Van der Bellen | | |
| | BELGIUM | (Brussels) | | King Philippe | | |
| | CYPRUS | (Nicosia) | | President Nicos Anastasiades | | |
| | GERMANY | (Berlin ar + Bonn lr + Karlsruhe d) | | Bundespresident Frank-Walter Steinmeier | | |
| | ESTONIA | (Tallinn a + Tartu b) | | President Alar Karis | | |
| | SPAIN | (Madrid) | | King Philip VI | | |
| | FINLAND | (Helsinki a + Kultaranta s) | | President Sauli Niinisto | | |
| | FRANCE | (Paris) | | President Emmanuel Macron | | |
| | GREECE | (Athens a) | | President Ekaterini Sakellaropoulou | | |
| | IRELAND | (Dublin) | | President Michael Daniel Higgins | | |
| | ITALY | (Rome a) | | President Sergio Mattarella | | |
| | LITHUANIA | (Vilnius) | | President Gitanas Nauseda | | |
| | LUXEMBOURG | (Luxembourg a) | | Grand Duke Henri | | |
| | LATVIA | (Riga) | | President Egils Levits | | |
| | MALTA | (Valletta a + Attard r + Siggiewi s) | | President George Vella | | |
| | NETHERLANDS | (Amsterdam a + The Hague jlr + Wassenaar r) | | King Willem-Alexander | | |
| | PORTUGAL | (Lisbon) | | President Marcelo Rebelo de Sousa | | |
| | SLOVENIA | (Ljubljana) | | President Borut Pahor | | |
| | SLOVAKIA | (Bratislava a + Kosice d) | | President Zuzana Caputova | | |