| Security Masters Pte Ltd | North | Commercial | CSO | CSO | Marsiling |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | SSS | CSO | Tampines |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SSS | Yishun |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SSO | MacPherson |
| Star Security Services | Island Wide | - | OE | SS | Bukit Panjang |
| Certis Group | Island Wide | - | SSO | SSS | Yishun |
| Soverus Pte Ltd | Central | Commercial | SSS | SO | Choa Chu Kang |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Ang Mo Kio |
| Chang & Chang Security Management Pte. Ltd. | East | Condominium | SS | SS | Tampines |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SS | Hougang |
| Acestes Pte Ltd | Island Wide | - | OM | CSO | Tampines |
| Inhouse Employer at Changi | East | Commercial | OE | SSO | Buangkok |
| Soverus Pte Ltd | West | Industrial / Factory | SO | SSS | Jurong East |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| SATS Ltd | East | - | OE | SSS | Bishan |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | Nil | Bukit Batok |
| Securus Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Shangri-La Rasa Sentosa, Singapore | South | Hotel | OE | SS | Sengkang |
| Fervour Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | SS | Bukit Batok |
| GATES PCM Integrated Services Pte Ltd | Central | School | SO | SSO | - |
| A-SAT Pte Ltd | East | Construction | SO | SO | Pasir Ris |
| Primesafe Security & Investigation Pte Ltd | Island Wide | - | SS | SS | Lavender |
| Security Enforcer Pte Ltd | Central | Condominium | SO | SO | Khatib |
