| 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 |
| 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 |
| 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 |
| Eagle I Security Services Pte Ltd | East | - | SO | SO | Pasir Ris |
| Fervour Pte Ltd | Island Wide | - | OM | Nil | Bukit Panjang |
| Soverus Pte Ltd | Island Wide | - | SSS | SS | Choa Chu Kang |
| 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 |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SSS | Woodlands |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| Star Security Services | Island Wide | - | Security Mgt | SSO | Hougang |
