| Union Security Services Pte. Ltd. | North | - | SSO | CSO | Bedok |
| Danmax Security Management Pte Ltd | East | - | OE | CSO | Bedok |
| Primesafe Security & Investigation Pte Ltd | Central | Condominium | SSO | SSO | Bedok |
| Metropolis Security Systems Pte Ltd | Island Wide | Mix-Development | SSO | SSO | Bedok |
| GATES PCM Integrated Services Pte Ltd | East | Commercial | SO | CSO | Bedok |
| Strive Security Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Aigle Security Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Aigle Security Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Strive Security Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| SMS Security | East | Condominium | SO | SO | Bedok |
| SMS Security | East | Condominium | SO | SO | Bedok |
| Certis Group | East | Gov Building | SO | SO | Bedok |
| SMS Security | East | Condominium | SO | SO | Bedok |
| Ranger Investigation & Security Services Pte Ltd | South | In-House | SSO | CSO | Bedok |
| A-SAT Pte Ltd | South | Mix-Development | SSO | CSO | Bedok |
| Primesafe Security & Investigation Pte Ltd | Island Wide | - | SS | CSO | Bedok |
| Ranger Investigation & Security Services Pte Ltd | East | In-House | SSO | CSO | Bedok |
| Inhouse Employer | Central | Mix-Development | OE | CSO | Bedok |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Securus Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Eagle I Security Services Pte Ltd | East | - | SO | CSO | Bedok |
| GATES PCM Integrated Services Pte Ltd | East | Commercial | SS | CSO | Bedok |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | CSO | Bedok |
| Regal Security & Fire Management Services Pte Ltd | Central | In-House | SSO | CSO | Bedok |
| Ranger Investigation & Security Services Pte Ltd | East | In-House | SSO | CSO | Bedok |
