| SATS Ltd | Island Wide | - | OM | SSS | Tampines |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Fervour Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Securus Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Stalwart Security Pte Ltd | Island Wide | - | OE | SS | Woodlands |
| Securus Pte Ltd | Island Wide | - | OE | SS | Woodlands |
| PICO Guards Pte Ltd | Island Wide | - | OE | SS | Woodlands |
| Peregrine Security Pte. Ltd. | Central | - | SSO | SO | Bukit Batok |
| Pedro Investigations & Security Services Pte. Ltd. | Central | - | SSO | SSO | Bukit Batok |
| TwinRock Global | Central | - | SO | SSO | Bukit Batok |
| Uniforce Security Services Pte Ltd | Central | - | SSO | SSO | Bukit Batok |
| Total Protection Solutions Pte Ltd | North | - | SSO | SSO | Bukit Batok |
| Dragnet Smartech Security Pte Ltd | East | - | SSO | SSO | Jurong East |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SS | Woodlands |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SS | Woodlands |
| Star Security Services | Island Wide | - | Security Mgt | SS | Woodlands |
| Union Security Services Pte. Ltd. | Island Wide | - | OE | SS | Woodlands |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SS | Woodlands |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SSS | Bedok |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SSS | Bedok |
| Securus Pte Ltd | Island Wide | - | OE | SS | Ang Mo Kio |
| SATS Ltd | Island Wide | - | OM | Nil | Tampines |
| Dragnet Smartech Security Pte Ltd | Central | - | Security Mgt | Nil | Tampines |
| PICO Guards Pte Ltd | Island Wide | - | OM | Nil | Tampines |
