| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SS | Woodlands |
| Crowne Plaza Changi Airport | East | In-House | OE | SS | Woodlands |
| Strive Security Pte Ltd | Island Wide | - | OE | SS | Woodlands |
| Legion Protection Pte Ltd | Island Wide | - | OE | SS | Woodlands |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Woodlands |
| RAS Security Pte Ltd | North | Commercial | SSO | SS | Yishun |
| Inhouse Employer | Central | Country Club | OM | SS | Punggol |
| Securitas Guarding Services (Singapore) Pte Ltd | East | Data Centre | SO | SS | Aljunied |
| RAS Security Pte Ltd | North | In-House | Office Team | SS | Woodlands South |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | SS | Tampines |
| Strive Security Pte Ltd | Island Wide | - | OE | SS | Tampines |
| GATES PCM Integrated Services Pte Ltd | East | Commercial | SS | SS | Tampines |
| RAS Security Pte Ltd | East | Commercial | SS | SS | Tampines |
| RAS Security Pte Ltd | North | Commercial | OE | SS | Tampines |
| Acestes Pte Ltd | Island Wide | - | OM | SS | Tampines |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SS | Tampines |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | SS | Tampines |
| Artyzen Singapore | Central | Hotel | SS | SS | Tampines |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | OE | SS | Tampines |
| Star Security Services | Island Wide | - | OE | SS | Tampines |
| Mainguard Security Services (S) Pte Ltd | Island Wide | - | OE | SS | Tampines |
| Stalwart Security Pte Ltd | Island Wide | - | OE | SS | Tampines |
| Inhouse Employer | West | In-House | OM | SS | Tampines |
| Eagle I Security Services Pte Ltd | Island Wide | - | OE | SS | Tampines |
| Union Security Services Pte. Ltd. | Island Wide | - | OE | SS | Tampines |
