| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SSS | Bedok |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SSO | Simei |
| Acestes Pte Ltd | Central | - | Security Mgt | CSO | Marsiling |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SSS | Toa Payoh |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | Security Mgt | SSS | Woodlands |
| Fervour Pte Ltd | Island Wide | - | OM | SS | Choa Chu Kang |
| Force-One Security | North | Data Centre | OE | SSS | Toa Payoh |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SSS | Bukit Batok |
| Securus Pte Ltd | North | Condominium | SS | SS | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | South | Commercial | CSO | CSO | Sembawang |
| Storm Protection Pte Ltd | West | Industrial / Factory | SS | SS | Bukit Panjang |
| Acestes Pte Ltd | Island Wide | - | OM | CSO | Yew Tee |
| Kingston Property Maintenance Services Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Union Security Services Pte. Ltd. | Central | Industrial / Factory | SS | SS | Marsiling |
| Crowne Plaza Changi Airport | East | Hotel | SSO | SSO | Simei |
| Regal Security & Fire Management Services Pte Ltd | Central | In-House | SSO | CSO | Bedok |
| PICO Guards Pte Ltd | North | Industrial / Factory | SO | SO | Bras Basah |
| Securus Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Elid Technology International Pte Ltd | East | Condominium | SO | SO | Mountbatten |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | Choa Chu Kang |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Bukit Panjang |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Pasir Ris |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Marsiling |
| Focus Security Services Pte Ltd | Central | Retail | SSO | SSO | Tampines |
