| Elitez Security Pte Ltd | Central | Condominium | SS | SS | Marsiling |
| Kingston Property Maintenance Services Pte Ltd | Central | Mix-Development | SS | SS | Marsiling |
| Chang & Chang Security Management Pte. Ltd. | Central | Condominium | SS | SS | Marsiling |
| Certis Group | Central | School | SS | SS | Marsiling |
| Elitez Security Pte Ltd | Central | Condominium | SS | SS | Marsiling |
| Inhouse Employer | Central | Hotel | SS | SS | Marsiling |
| Uniforce Security Services Pte Ltd | Central | Condominium | SS | SS | Marsiling |
| Union Security Services Pte. Ltd. | Central | Industrial / Factory | SS | SS | Marsiling |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SS | Marsiling |
| GATES PCM Integrated Services Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| PICO Guards Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| Aigle Security Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| AGS Integration Pte. Ltd. | Island Wide | - | OE | SS | Marsiling |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| Ademco Security Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | SS | Marsiling |
| Securus Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| AGS Integration Pte. Ltd. | Island Wide | - | OE | SS | Marsiling |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SS | Marsiling |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Sengkang |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SS | Sengkang |
| Crowne Plaza Changi Airport | East | In-House | OE | SS | Sengkang |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SS | Sengkang |
