| PICO Guards Pte Ltd | South | Commercial | SSS | CSO | Marsiling |
| ESA Security Pte Ltd | South | Hotel | SSO | SSO | - |
| Ademco Security Pte Ltd | South | Mix-Development | SSS | CSO | Marsiling |
| Reachfield Security & Safety Management Pte Ltd | South | Commercial | SS | SS | Woodlands |
| Soverus Pte Ltd | South | In-House | SSO | SSO | Boon Lay |
| Ademco Security Pte Ltd | South | Mix-Development | SSS | CSO | Toa Payoh |
| Reachfield Security & Safety Management Pte Ltd | South | Commercial | CSO | CSO | Boon Lay |
| ARSLAN SRS Singapore | South | In-House | RSOC/CAMS Op | SSO | Sengkang |
| Metropolis Security Systems Pte Ltd | South | Commercial | SSO | SSO | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SO | Nil | Kembangan |
| Ademco Security Pte Ltd | South | Mix-Development | SSS | CSO | Toa Payoh |
| Ademco Security Pte Ltd | South | Mix-Development | SSS | CSO | Toa Payoh |
| Storm Protection Pte Ltd | South | Commercial | SO | SO | Admiralty |
| Soverus Pte Ltd | South | In-House | SSO | SSO | Boon Lay |
| Soverus Pte Ltd | South | In-House | SSO | SSO | Boon Lay |
| Inhouse Employer | South | In-House | SO | SO | Bras Basah |
| Ademco Security Pte Ltd | South | Mix-Development | SSS | CSO | Toa Payoh |
| Pan Pacific Singapore | South | In-House | Security Mgt | SSO | Hougang |
| Shangri-La Rasa Sentosa, Singapore | South | Hotel | OE | SS | Sengkang |
| Horus I (Private Limited) | South | Retail | SO | SO | Pasir Ris |
| Horus I (Private Limited) | South | Retail | SO | SO | Pasir Ris |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | Bras Basah |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SS | Bukit Batok |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SS | Ang Mo Kio |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | CSO | Marsiling |
