Organizations

AOSIS

Which countries are in AOSIS? 39 member countries in the Magna Factbook, ranked by Magna Power.

Last updated: October 2026

Member countries (39)

#	Country	Power
1	Singapore	64.69/100
2	The Dominican	55.4/100
3	Guyana	51.21/100
4	Jamaica	51.19/100
5	Cuba	49.96/100
6	Fiji	49.96/100
7	The Bahamas	48.16/100
8	Suriname	47.82/100
9	Papua New Guinea	38.41/100
10	Belize	38.39/100
11	Haiti	38.18/100
12	Trinidad and Tobago	38.02/100
13	FM	35.56/100
14	Cabo Verde	33.38/100
15	Solomon Islands	32.61/100
16	Vanuatu	29.51/100
17	Samoa	28.03/100
18	Mauritius	26.72/100
19	Antigua and Barbuda	20.69/100
20	Grenada	20.28/100
21	Dominica	19.01/100
22	Barbados	17.8/100
23	Maldives	16.77/100
24	Timor-Leste	16.39/100
25	Saint Kitts and Nevis	15.1/100
26	Saint Vincent and the Grenadines	14.75/100
27	Tonga	14.05/100
28	Saint Lucia	13.99/100
29	Kiribati	13.66/100
30	Comoros	12.75/100
31	Palau	11.18/100
32	Seychelles	11.17/100
33	Guinea-Bissau	10.0/100
34	Marshall Islands	9.9/100
35	Nauru	8.88/100
36	Tuvalu	8.74/100
37	Sao Tome and Principe	8.42/100
38	Cook Islands	—
39	Niue	—

Other organizations

CICA CP ECO EITI FAO G-77 IAEA IBRD ICAO ICC ICCt ICRM

Across the Bureau

ABEDA — Member Countries ACP — Member Countries ACS — Member Countries Afghanistan — Country Profile Albania — Country Profile Algeria — Country Profile

AOSIS has 39 member countries, ranked by national power. The strongest members are Singapore, The Dominican, and Guyana. The Bureau lists every member with its power score, from the most powerful to the least. Membership reflects the Factbook's country coverage as of October 2026.

Frequently asked questions

What is AOSIS?

AOSIS is an international organization with 39 member countries listed in Magna Bureau Factbook, ranked by national power.

Which countries are members of AOSIS?

The 39 member countries of AOSIS include Singapore, The Dominican, Guyana, Jamaica, Cuba and 34 others. See the full ranked list on this page.