| Name | Region |
|---|---|
| Connect Tonga Ltd | Tongatapu |
| Dark Nebula Marketing | Tongatapu |
| Digicel Tonga Ltd | Tongatapu |
| Niu IT | Tongatapu |
| Solar Island Technology Ltd | Tongatapu |
| Tonga Web Host | Tongatapu |
| TONIC Domain Name Registry | Tongatapu |
| University of the South Pacific, Tonga Campus | Tongatapu |
| WanTok Pacific Corporation | Tongatapu |