| Prosec Services Pte Ltd | East | Retail | SO | SO | Pasir Ris |
| Premier Security Co-operative Ltd | East | In-House | Office Team | SSS | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | East | Industrial / Factory | SO | SO | Bedok |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SS | Bukit Panjang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SSS | Bedok |
| Premier Security Co-operative Ltd | North | Commercial | SO | SO | Yishun |
| Focus Security Services Pte Ltd | West | Condominium | SS | SO | Bright Hill |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | SO | SO | Bukit Gombak |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | CSO | Toa Payoh |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Pasir Ris |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SSS | Tampines |
| Prospect Protection Pte Ltd | East | Industrial / Factory | SO | SO | Pasir Ris |
| Securus Pte Ltd | Island Wide | - | OE | SO | Yishun |
| Premier Security Co-operative Ltd | Island Wide | - | SS | SS | Bukit Panjang |
| IGC Security Services Pte Ltd | South | Industrial / Factory | SSO | SS | Tiong Bahru |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | Hougang |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SS | Woodlands |
| AETOS Holdings Pte Ltd | Island Wide | Mix-Development | APO | SO | Tampines |
| SATS Ltd | Island Wide | Commercial | APO | SO | Choa Chu Kang |
| AETOS Holdings Pte Ltd | West | - | SO | SS | Marsiling |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SSO | Bukit Batok |
| Security Masters Pte Ltd | North | Commercial | CSO | CSO | Bedok |
| Triple ‘S’ Protection Pte Ltd | West | Depot | SSO | SSO | Boon Lay |
| Fervour Pte Ltd | Island Wide | - | OM | CSO | Tampines |
