30 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 Heinz Fischer | | |
| | BELGIUM | (Brussels) | | King Albert II | | |
| | BULGARIA | (Sofia) | | President Georgi Parvanov | | |
| | SWITZERLAND | (Berne lq + Lausanne j) | | President Doris Leuthard | | |
| | CYPRUS | (Nicosia) | | President Dimitris Christofias | | |
| | CZECHIA | (Prague elr + Brno dj + Lany r) | | President Vaclav Klaus | | |
| | GERMANY | (Berlin ar + Bonn lr + Karlsruhe d) | | Bundespresident Horst Koehler | | |
| | DENMARK | (Copenhagen) | | Queen Margaret II | | |
| | ESTONIA | (Tallinn a + Tartu b) | | President Toomas Hendrik Ilves | | |
| | SPAIN | (Madrid) | | King Juan Carlos I | | |
| | FINLAND | (Helsinki a + Kultaranta s) | | President Tarja Halonen | | |
| | FRANCE | (Paris) | | President Nicolas Sarkozy | | |
| | GREECE | (Athens a) | | President Karolos Papoulias | | |
| | CROATIA | (Zagreb) | | President Ivo Josipovich | | |
| | HUNGARY | (Budapest a) | | President Laszlo Solyom | | |
| | IRELAND | (Dublin) | | President Mary McAleese | | |
| | ICELAND | (Reykjavik a + Alftanes r) | | President Olafur Ragnar Grimsson | | |
| | ITALY | (Rome a) | | President Giorgio Napolitano | | |
| | LITHUANIA | (Vilnius) | | President Dalia Grybauskaite | | |
| | LUXEMBOURG | (Luxembourg a) | | Grand Duke Henri | | |
| | NETHERLANDS | (Amsterdam a + The Hague jlr + Wassenaar r) | | Queen Beatrix | | |
| | NORWAY | (Oslo) | | King Harald V | | |
| | POLAND | (Warsaw a) | | President Lech Kaczynski | | |
| | PORTUGAL | (Lisbon) | | President Anibal Cavaco Silva | | |
| | ROMANIA | (Bucharest) | | President Traian Basescu | | |
| | SWEDEN | (Stockholm) | | King Charles XVI Gustav | | |
| | SLOVENIA | (Ljubljana) | | President Danilo Turk | | |
| | SLOVAKIA | (Bratislava a + Kosice d) | | President Ivan Gasparovic | | |
| | TURKEY | (Ankara a) | | President Abdullah Gul | | |
| | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | Queen Elizabeth II | | |