| Total Protection Solutions Pte Ltd | Island Wide | - | OM | Nil | Telok Blangah |
| SMS Investigation & Security Pte Ltd | Central | - | OM | Nil | Telok Blangah |
| SATS Ltd | Island Wide | - | OM | Nil | Woodlands |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | Nil | Buangkok |
| Prospect Protection Pte Ltd | West | Industrial / Factory | SO | Nil | - |
| Acestes Pte Ltd | Central | - | Security Mgt | Nil | Tampines West |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | Nil | Punggol |
| Acestes Pte Ltd | Central | - | Security Mgt | Nil | Tampines West |
| Certis Group | Island Wide | - | SO | Nil | Bencoolen |
| Certis Group | North | - | SO | Nil | Marsiling |
| Certis Group | North | - | SO | Nil | Marsiling |
| Certis Group | Central | School | SO | Nil | Jurong East |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | Nil | Bukit Batok |
| Star Security Services | Island Wide | - | Security Mgt | Nil | Bukit Batok |
| SATS Ltd | Island Wide | - | Inves | Nil | Bukit Batok |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | Nil | Bukit Batok |
| Titanium Safety & Security Pte Ltd | Island Wide | - | OE | Nil | Bukit Batok |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | Nil | Bukit Batok |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | Nil | Bukit Batok |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | Nil | Bukit Batok |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | Nil | Bukit Batok |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | Nil | Bukit Batok |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | Nil | Bukit Batok |
| Mainguard Security Services (S) Pte Ltd | Island Wide | - | OE | Nil | Bukit Batok |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | Nil | Bedok |
