23 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. ] :
| | ARMENIA | (Erevan) | | President Serge Sarkisyan | | |
| | AUSTRIA | (Vienna) | | President Heinz Fischer | | |
| | AZERBAIJAN | (Baku) | | President Iham Aliyev | | |
| | BOSNIA AND HERZEGOVINA | (Sarajevo) | | President Bakir Izetbegovich | | |
| | BELARUS | (Minsk) | | President Alexander Lukashenko | | |
| | SWITZERLAND | (Berne lq + Lausanne j) | | President Johann Schneider-Ammann | | |
| | NATO | (Brussels) | | SG Jens Stoltenberg (no) | | |
| | FINLAND | (Helsinki a + Kultaranta s) | | President Sauli Niinisto | | |
| | GEORGIA | (Tbilisi a + Kutaisi l + Batumi d) | | President Giorgi Margvelashvili | | |
| | IRELAND | (Dublin) | | President Michael Daniel Higgins | | |
| | KYRGYZSTAN | (Bishkek) | | President Almazbek Atambayev | | |
| | KAZAKHSTAN | (Astana a) | | President Elbashy Nursultan Nazarbayev | | |
| | LITHUANIA | (Vilnius) | | President Dalia Grybauskaite | | |
| | MOLDOVA | (Chisinau) | | President Nicolae Timofti | | |
| | MONTENEGRO | (Podgoritsa a + Cetinje hr) | | President Filip Vujanovich | | |
| | MACEDONIA | (Skopje) | | President Gjorge Ivanov | | |
| | MALTA | (Valletta a + Attard r + Siggiewi s) | | President Marie-Louise Coleiro Preca | | |
| | SERBIA | (Belgrade) | | President Tomislav Nikolich | | |
| | RUSSIA | (Moscow a + Saint Petersburg d) | | President Vladimir Putin | | |
| | TAJIKISTAN | (Dushanbe) | | President Emomali Rakhmonov | | |
| | TURKMENISTAN | (Ashgabat) | | President Arkadag Gurbanguly Berdymukhammedov | | |
| | UKRAINE | (Kiev) | | President Petro Poroshenko | | |
| | UZBEKISTAN | (Tashkent a + Durman r) | | President Islam Karimov | | |