| Kingston Property Maintenance Services Pte Ltd | Central | Mix-Development | SS | CSO | Clementi |
| Acestes Pte Ltd | Island Wide | - | OM | SSO | Clementi |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SSO | Clementi |
| Acestes Pte Ltd | Island Wide | - | OM | SSO | Clementi |
| Securus Pte Ltd | Island Wide | - | OM | SSO | Clementi |
| Crowne Plaza Changi Airport | East | In-House | OM | SSO | Clementi |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | SSO | Clementi |
| SATS Ltd | East | - | OE | SSO | Clementi |
| Strive Security Pte Ltd | Island Wide | - | OE | SSO | Clementi |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SSO | Clementi |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SSO | Clementi |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | SSO | Clementi |
| Inhouse Employer | West | In-House | OM | Nil | Clementi |
| Excellent Security & Safety Pte Ltd | West | Commercial | SSO | SSS | Clementi |
| First Security & Private Investigation (Singapore) Pte Ltd | South | Condominium | SS | SSS | Clementi |
| Kingston Property Maintenance Services Pte Ltd | West | Condominium | SO | SSS | Clementi |
| TwinRock Global | South | Condominium | SO | SSS | Clementi |
| Security & Risk Solutions Pte. Ltd. | Central | - | Office Team | SSS | Commonwealth |
| SATS Ltd | Island Wide | - | OM | SSS | Commonwealth |
| Aedge Services Pte Ltd | Island Wide | - | OM | SSS | Commonwealth |
| Inhouse Employer | Island Wide | Construction | OM | SSS | Commonwealth |
| RAS Security Pte Ltd | North | Commercial | SSO | SSO | Commonwealth |
| PICO Guards Pte Ltd | Central | School | SSO | SSO | Commonwealth |
| Metropolis Security Systems Pte Ltd | Central | Industrial / Factory | SO | SSO | Commonwealth |
| Metropolis Security Systems Pte Ltd | Central | Industrial / Factory | SO | SSO | Commonwealth |
