Since its inception in 2006, the Global Initiative to Combat Nuclear Terrorism has grown into a partnership of 85 nations and four official observers.
85 Global Initiative Partner Nations and 4 Official Observers
| 1. Afghanistan | 31. Iceland | 61. Poland |
| 2. Albania | 32. India | 62. Portugal |
| 3. Algeria | 33. Ireland | 63. Romania |
| 4. Argentina | 34. Israel | 64. Russian Federation |
| 5. Armenia | 35. Italy | 65. Saudi Arabia |
| 6. Australia | 36. Japan | 66. Serbia |
| 7. Austria | 37. Jordan | 67. Seychelles |
| 8. Azerbaijan | 38. Kazakhstan | 68. Singapore |
| 9. Bahrain | 39. Republic of Korea | 69. Slovakia |
| 10. Belarus | 40. Kyrgyz Repubic | 70. Slovenia |
| 11. Belgium | 41. Latvia | 71. Spain |
| 12. Bosnia | 42. Libya | 72. Sri Lanka |
| 13. Bulgaria | 43. Lithuania | 73. Sweden |
| 14. Cambodia | 44. Luxembourg | 74. Switzerland |
| 15. Canada | 45. Republic of Macedonia | 75. Tajikistan |
| 16. Cape Verde | 46. Madagascar | 76. Thailand |
| 17. Chile | 47. Malaysia | 77. Turkey |
| 18. China | 48. Malta | 78. Turkmenistan |
| 19. Cote d'Ivoire | 49. Mauritius | 79. Ukraine |
| 20. Croatia | 50. Mexico | 80. United Arab Emirates |
| 21. Cyprus | 51. Montenegro | 81. United Kingdom |
| 22. Czech Republic | 52. Morocco | 82. United States |
| 23. Denmark | 53. Nepal | 83. Uzbekistan |
| 24. Estonia | 54. Netherlands | 84. Vietnam |
| 25. Finland | 55. New Zealand | 85. Zambia |
| 26. France | 56. Norway | |
| 27. Georgia | 57. Pakistan | |
| 28. Germany | 58. Palau | |
| 29. Greece | 59. Panama | |
| 30. Hungary | 60. Philippines |
Official Observers
