| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SS | Clementi |
| Acestes Pte Ltd | Island Wide | - | OM | SS | Clementi |
| SATS Ltd | Island Wide | - | Inves | SS | Clementi |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SS | Clementi |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | SS | Clementi |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | SS | Clementi |
| SATS Ltd | East | - | OE | SS | Clementi |
| Soverus Pte Ltd | Island Wide | - | OE | SS | Clementi |
| Star Security Services | Island Wide | - | Security Mgt | SS | Clementi |
| Reachfield Security & Safety Management Pte Ltd | Central | School | Security Mgt | SS | Clementi |
| TwinRock Global | Central | - | Security Mgt | SS | Clementi |
| RAS Security Pte Ltd | North | Commercial | SSO | SO | Clementi |
| RAS Security Pte Ltd | North | Commercial | SSO | SO | Clementi |
| SATS Ltd | Island Wide | - | OM | SS | Clementi |
| RAS Security Pte Ltd | North | Commercial | SSO | SO | Clementi |
| A-SAT Pte Ltd | North | Mix-Development | SSO | SO | Clementi |
| Soverus Pte Ltd | Central | Commercial | SSS | CSO | Clementi |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | CSO | Clementi |
| Inhouse Employer | West | In-House | OM | CSO | Clementi |
| Soverus Pte Ltd | Central | Commercial | SSS | CSO | Clementi |
| Elid Technology International Pte Ltd | East | Condominium | SS | CSO | Clementi |
| Elid Technology International Pte Ltd | East | Condominium | SS | CSO | Clementi |
| Kingston Property Maintenance Services Pte Ltd | Central | Mix-Development | SS | CSO | Clementi |
| SMS Investigation & Security Pte Ltd | Central | Commercial | SS | CSO | Clementi |
| SMS Investigation & Security Pte Ltd | Central | Commercial | SS | CSO | Clementi |
