| Securus Pte Ltd | Island Wide | - | OE | SSS | Bedok |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Bedok |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | SS | Tampines |
| Strive Security Pte Ltd | Island Wide | - | OE | SS | Tampines |
| RAS Security Pte Ltd | North | Commercial | OE | SS | Tampines |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SS | Tampines |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | 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 |
| Eagle I Security Services Pte Ltd | Island Wide | - | OE | SS | Tampines |
| Union Security Services Pte. Ltd. | Island Wide | - | OE | SS | Tampines |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | CSO | Tampines |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| RAS Security Pte Ltd | North | Commercial | OE | SSS | Woodlands |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| Inhouse Employer | Central | Mix-Development | OE | SS | Sengkang |
| Malaysia Dairy Industries Pte Ltd | East | Commercial | OE | SSO | Hougang |
| Furama RiverFront, Singapore | South | Hotel | OE | SS | Sengkang |
| PICO Guards Pte Ltd | Island Wide | - | OE | Nil | Bukit Gombak |
