29 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. ] :
| | UNITED ARAB EMIRATES | (Abu Dhabi ar) | | President Sheikh Muhammad bin Zayed Al Nahyan | | |
| | AUSTRALIA | (Canberra) | | David Hurley | | |
| | BELGIUM | (Brussels) | | King Philippe | | |
| | BRAZIL | (Brasilia) | | President Luiz Inacio Lula da Silva | | |
| | CANADA | (Ottawa) | | King Charles III | | |
| | SWITZERLAND | (Berne lq + Lausanne j) | | President Alain Berset | | |
| | GERMANY | (Berlin ar + Bonn lr + Karlsruhe d) | | Bundespresident Frank-Walter Steinmeier | | |
| | DENMARK | (Copenhagen) | | Queen Margaret II | | |
| | EGYPT | (Cairo a + Alexandria r + Almasa New Capital City f) | | President Abdel Fattah el-Sisi | | |
| | SPAIN | (Madrid) | | King Philip VI | | |
| | FINLAND | (Helsinki a + Kultaranta s) | | President Sauli Niinisto | | |
| | FRANCE | (Paris) | | President Emmanuel Macron | | |
| | IRELAND | (Dublin) | | President Michael Daniel Higgins | | |
| | INDIA | (New Delhi a + Simla s + Bolarum w) | | President Draupadi Murmu | | |
| | ITALY | (Rome a) | | President Sergio Mattarella | | |
| | JORDAN | (Amman) | | King Abdullah II | | |
| | JAPAN | (Tokyo) | | Emperor Naruhito | | |
| | KUWAIT | (Kuwait City) | | Emir Sheikh Nawaf Al Ahmad Al Jabir Al Sabah | | |
| | LEBANON | (Beirut a + Baabda r + Hadeth d) | | Najib Mikati | | |
| | LUXEMBOURG | (Luxembourg a) | | Grand Duke Henri | | |
| | NETHERLANDS | (Amsterdam a + The Hague jlr + Wassenaar r) | | King Willem-Alexander | | |
| | NORWAY | (Oslo) | | King Harald V | | |
| | QATAR | (Doha) | | Emir Sheikh Tamim bin Hamad Al Thani | | |
| | SAUDI ARABIA | (Riyadh) | | King Salman | | |
| | SWEDEN | (Stockholm) | | King Charles XVI Gustav | | |
| | SYRIA | (Damascus) | | President Bashar Al-Assad | | |
| | TURKIYE | (Ankara a + Marmaris s) | | President Recep Tayyip Erdogan | | |
| | UNITED KINGDOM | (London a + Westminster lr + Edinburgh s + Windsor r) | | King Charles III | | |
| | AMERICA | (Washington-District of Columbia) | | President Joe Biden | | |