| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SO | Tampines |
| Acestes Pte Ltd | Island Wide | - | OM | SO | Tampines |
| Fervour Pte Ltd | Island Wide | - | OM | SO | Tampines |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | Bras Basah |
| Inhouse Employer | Island Wide | - | OE | CSO | Ang Mo Kio |
| Eagle I Security Services Pte Ltd | Island Wide | - | OE | CSO | Ang Mo Kio |
| Soverus Pte Ltd | Island Wide | - | SSS | SS | Choa Chu Kang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SSS | Bedok |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SSS | Bedok |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SSS | Bedok |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SSS | Bedok |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Bedok |
| PICO Guards Pte Ltd | Island Wide | - | OE | SSS | Bedok |
| Ademco Security Pte Ltd | Island Wide | - | OE | SSS | Bedok |
| Acestes Pte Ltd | Central | - | Security Mgt | SSS | Bedok |
| SATS Ltd | Island Wide | - | Inves | Nil | Sengkang |
| SATS Ltd | Island Wide | - | OM | SS | Clementi |
| Pedro Investigations & Security Services Pte. Ltd. | Central | - | SSO | SS | Bukit Batok |
| Brink's Singapore Pte Ltd | East | - | SO | SO | Pasir Ris |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SSS | Bedok |
| Soverus Pte Ltd | Island Wide | - | SSS | SS | Choa Chu Kang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| PICO Guards Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Bukit Batok |
