| Reachfield Security & Safety Management Pte Ltd | Island Wide | Industrial / Factory | SSS | SS | Pasir Ris |
| Inhouse Employer | Island Wide | - | OE | SSS | Toa Payoh |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Bukit Batok |
| Stalwart Security Pte Ltd | Island Wide | - | OE | SSS | Bukit Batok |
| Securus Pte Ltd | Island Wide | - | OE | SSS | Bukit Batok |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SO | Choa Chu Kang |
| PICO Guards Pte Ltd | Island Wide | - | OE | SO | Choa Chu Kang |
| Security Masters Pte Ltd | Island Wide | - | SS | SS | Choa Chu Kang |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SSS | Jurong East |
| PICO Guards Pte Ltd | Island Wide | - | OE | SSS | Choa Chu Kang |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SS | - |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Strive Security Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SSS | Sengkang |
| Securus Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| PICO Guards Pte Ltd | Island Wide | - | OM | Nil | Pasir Ris |
| Soverus Pte Ltd | Island Wide | - | SSS | Nil | Pasir Ris |
| SATS Ltd | Island Wide | - | OM | Nil | Pasir Ris |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | Nil | Pasir Ris |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | Nil | Boon Lay |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SSS | Jurong East |
| PICO Guards Pte Ltd | Island Wide | - | OM | Nil | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | Security Mgt | CSO | Hougang |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SSS | Jurong East |
| Securus Pte Ltd | Island Wide | - | OE | SSS | Toa Payoh |
