| System Name | Type | City |
|---|---|---|
| Changi International Airport | Motorola Type II Smartnet | Singapore |
| Singapore Government | TETRA Standard | Singapore |
| Singapore International Airlines | TETRA Standard | Singapore |
| Singtel, SMR 1 | Project 25 Phase I | Singapore |
| Singtel, SMR 2 | Motorola Type II SmartZone | Singapore |
| Unid Singapore Project 25 | Project 25 Phase I | Singapore |
