| Aigle Security Pte Ltd | Central | Condominium | SO | SSO | Woodlands |
| Trek Investigations & Security Management Services Pte Ltd | Central | Condominium | SO | SSO | Woodlands |
| William Secure Solutions Pte Ltd | West | Condominium | SO | SSO | Woodlands |
| Peregrine Security Pte. Ltd. | North | Commercial | SSO | SSO | Ang Mo Kio |
| Union Security Services Pte. Ltd. | North | Commercial | SSO | SSO | Ang Mo Kio |
| Peregrine Security Pte. Ltd. | North | Healthcare | SSO | SSO | Ang Mo Kio |
| 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 |
