| Brink's Singapore Pte Ltd | East | - | SO | SO | Tampines |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Choa Chu Kang |
| Fervour Pte Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Pedro Investigations & Security Services Pte. Ltd. | Central | - | SSO | SS | Bukit Panjang |
| Star Security Services | Island Wide | - | OE | SS | Bukit Panjang |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | SS | Bukit Panjang |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Legion Protection Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SS | Bukit Panjang |
| SATS Ltd | Island Wide | - | OM | CSO | Queenstown |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | CSO | Queenstown |
| Dragnet Smartech Security Pte Ltd | Central | - | Security Mgt | CSO | Queenstown |
| Fervour Pte Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
| SATS Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | CSO | Choa Chu Kang |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | Security Mgt | SSS | Tampines |
| Peregrine Security Pte. Ltd. | Central | - | SSO | CSO | Bedok |
| TwinRock Global | Central | - | SO | CSO | Bedok |
| Star Security Services | Island Wide | - | OE | CSO | Bedok |
| TwinRock Global | Central | - | SO | CSO | Bedok |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| AGS Integration Pte. Ltd. | Island Wide | - | OE | SSS | Tampines West |
