| Triple ‘S’ Protection Pte Ltd | East | Commercial | SO | SSO | Pasir Ris |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SSO | Pasir Ris |
| Bulls-Eye Security Services Pte Ltd | Island Wide | - | SSO | SSO | Pasir Ris |
| Dragnet Smartech Security Pte Ltd | Central | School | SSO | SSO | Pasir Ris |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SO | SSO | Pasir Ris |
| Prosegur Singapore Pte Ltd | East | Commercial | SSO | SSO | Pasir Ris |
| Crowne Plaza Changi Airport | East | In-House | OM | SSO | Pasir Ris |
| Prosegur Singapore Pte Ltd | East | Commercial | SSO | Nil | Pasir Ris |
| Acestes Pte Ltd | Island Wide | - | OM | CSO | Pasir Ris |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Pasir Ris |
| SATS Ltd | Island Wide | - | OM | CSO | Pasir Ris |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | CSO | Pasir Ris |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Pasir Ris |
| SATS Ltd | Island Wide | - | OM | SSS | Pasir Ris |
| Acestes Pte Ltd | Island Wide | - | Security Mgt | SSS | Pasir Ris |
| Mainguard Security Services (S) Pte Ltd | Island Wide | - | OE | Nil | Pasir Ris |
| Horus I (Private Limited) | Central | Retail | SO | SSO | Pasir Ris |
| Acestes Pte Ltd | Central | - | Security Mgt | SSS | Pasir Ris |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Pasir Ris |
| Premier Security Co-operative Ltd | East | Commercial | SSO | SSO | Pasir Ris |
| Brink's Singapore Pte Ltd | East | - | SO | SO | Pasir Ris |
| Concorde Security Pte Ltd | Island Wide | - | OE | SO | Pasir Ris |
| Brink's Singapore Pte Ltd | East | - | SO | SO | Pasir Ris |
| Concorde Security Pte Ltd | Island Wide | - | OE | SO | Pasir Ris |
| Malaysia Dairy Industries Pte Ltd | East | Commercial | OE | SS | Pasir Ris |
