| Union Security Services Pte Ltd | North | Industrial / Factory | SSO | SSO | Ang Mo Kio |
| Union Security Services Pte. Ltd. | North | Commercial | SSO | SSO | Yishun |
| Hawkeye Security Solutions Pte Ltd | North | Commercial | SO | SSO | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | North | School | SO | SSO | Sengkang |
| Union Security Services Pte Ltd | North | Industrial / Factory | SSO | SSO | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | North | School | SO | SSO | Sengkang |
| Metropolis Security Systems Pte Ltd | North | - | SO | SSO | Sengkang |
| Soverus Pte Ltd | North | School | SSO | SSO | Sengkang |
| Soverus Pte Ltd | North | School | SSO | SSO | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | Central | Commercial | SO | SSO | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | Central | Commercial | SSO | SSO | Sengkang |
| Aspectus Consultancy Pte Ltd | Central | Mix-Development | SO | SSO | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | Central | Mix-Development | SO | SSO | Sengkang |
| Prosec Services Pte Ltd | East | - | SSO | SSO | Tampines |
| ARSLAN SRS Singapore | South | In-House | RSOC/CAMS Op | SSO | Boon Lay |
| GATES PCM Integrated Services Pte Ltd | Island Wide | - | OE | SSO | Tampines |
| RAS Security Pte Ltd | North | In-House | Office Team | SSO | Kaki Bukit |
| Star Security Services | Island Wide | - | Security Mgt | SSO | Kaki Bukit |
| Pan Pacific Singapore | South | In-House | Security Mgt | SSO | Hougang |
| PICO Guards Pte Ltd | Island Wide | - | OE | SSO | MacPherson |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SSO | MacPherson |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSO | MacPherson |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SSO | MacPherson |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SSO | MacPherson |
| Reachfield Security & Safety Management Pte Ltd | Central | School | SS | SSO | MacPherson |
