| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Dover |
| Dragnet Smartech Security Pte Ltd | West | Commercial | SSS | SSS | Jurong East |
| Acestes Pte Ltd | Island Wide | - | OM | SSS | Punggol |
| Star Security Services | Island Wide | - | Security Mgt | SSS | Jurong East |
| TwinRock Global | Central | - | Security Mgt | SSS | Jurong East |
| Reachfield Security & Safety Management Pte Ltd | South | Commercial | CSO | SSS | Jurong East |
| AGS Integration Pte. Ltd. | West | In-House | SS | SSS | Jurong East |
| Securus Pte Ltd | Island Wide | - | OE | SSS | Choa Chu Kang |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Tampines |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Jurong East |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Jurong East |
| Crowne Plaza Changi Airport | East | Hotel | Security Mgt | SSS | Jurong East |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SSS | Jurong East |
| ARSLAN SRS Singapore | South | In-House | RSOC/CAMS Op | SSS | Toa Payoh |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OM | SSS | Jurong East |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Tampines |
| SATS Ltd | East | - | OE | SSS | Tampines |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| SATS Ltd | Island Wide | - | OM | SSS | Tampines |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Fervour Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Crowne Plaza Changi Airport | East | In-House | OE | SSS | Tampines |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Dover |
