The table below lists the WBG client countries that are recognized as Small States and members of the Small States Forum (SSF), as well as those classified by the United Nations as Small Island Developing States (UN SIDS).
| Country | Small States Member | SSF Member | UN SIDS Member |
|---|---|---|---|
| Antigua and Barbuda | Yes | Yes | Yes |
| Bahamas | Yes | Yes | Yes |
| Bahrain | Yes | Yes | No |
| Barbados | Yes | Yes | Yes |
| Belize | Yes | Yes | Yes |
| Bhutan | Yes | Yes | No |
| Botswana | No | Yes | No |
| Brunei Darussalam | Yes | Yes | No |
| Cabo Verde | Yes | Yes | Yes |
| Comoros | Yes | Yes | Yes |
| Cyprus | Yes | Yes | No |
| Djibouti | Yes | Yes | No |
| Dominica | Yes | Yes | Yes |
| Dominican Republic | No | No | Yes |
| Equatorial Guinea | No | Yes | No |
| Estonia | Yes | Yes | No |
| Eswatini | Yes | Yes | No |
| Fiji | Yes | Yes | Yes |
| Gabon | No | Yes | No |
| Gambia | No | Yes | No |
| Grenada | Yes | Yes | Yes |
| Guinea-Bissau | No | Yes | Yes |
| Guyana | Yes | Yes | Yes |
| Haiti | No | No | Yes |
| Iceland | Yes | Yes | No |
| Jamaica | No | Yes | Yes |
| Kiribati | Yes | Yes | Yes |
| Lesotho | No | Yes | No |
| Maldives | Yes | Yes | Yes |
| Malta | Yes | Yes | No |
| Marshall Islands | Yes | Yes | Yes |
| Mauritius | Yes | Yes | Yes |
| Federated States of Micronesia | Yes | Yes | Yes |
| Montenegro | Yes | Yes | No |
| Namibia | No | Yes | No |
| Nauru | Yes | Yes | Yes |
| Palau | Yes | Yes | Yes |
| Papua New Guinea | No | No | Yes |
| Qatar | No | Yes | No |
| Samoa | Yes | Yes | Yes |
| San Marino | Yes | Yes | No |
| Sao Tome and Principe | Yes | Yes | Yes |
| Seychelles | Yes | Yes | Yes |
| Solomon Islands | Yes | Yes | Yes |
| St. Kitts and Nevis | Yes | Yes | Yes |
| St. Lucia | Yes | Yes | Yes |
| St. Vincent and the Grenadines | Yes | Yes | Yes |
| Suriname | Yes | Yes | Yes |
| Timor-Leste | Yes | Yes | Yes |
| Tonga | Yes | Yes | Yes |
| Trinidad and Tobago | No | Yes | Yes |
| Tuvalu | Yes | Yes | Yes |
| Vanuatu | Yes | Yes | Yes |
