| name | legal form | image | date founded | city Headquarters | administrative division Headquarters | country Headquarters | continent Headquarters | number of members | Website | date dissolved |
|---|---|---|---|---|---|---|---|---|---|---|
| All Ceylon Jamiyyathul Ulama | 1924 | Colombo | Western | Sri Lanka | Asia | Website | ||||
| Arthur C. Clarke Institute for Modern Technologies | 1984 | Moratuwa | Western | Sri Lanka | Asia | Website | ||||
| Asia Pacific Advanced Network | After 03/08/1997 | Peradeniya | Central | Sri Lanka | Asia | Website | ||||
| Ceylon Chamber of Commerce | 1839 | Colombo | Western | Sri Lanka | Asia | Website | ||||
| Colombo Plan | 28/11/1950 | Colombo | Western | Sri Lanka | Asia | Website |