| Certis Group | West | Depot | SS | SSS | Bukit Batok |
| Triple ‘S’ Protection Pte Ltd | North | Depot | SSO | SSO | Tampines |
| Aspectus Consultancy Pte Ltd | North | Depot | SO | SO | Yishun |
| Triple ‘S’ Protection Pte Ltd | North | Depot | SSO | SSO | Choa Chu Kang |
| Triple ‘S’ Protection Pte Ltd | Central | Depot | SSO | SO | Hougang |
| Ashtree International Pte. Ltd. | West | Dormitory | SO | SO | Bukit Batok |
| Ashtree International Pte. Ltd. | West | Dormitory | SO | SS | Bukit Panjang |
| Premier Security Co-operative Ltd | West | Dormitory | SO | SO | - |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | SSS | Tampines West |
| Ashtree International Pte. Ltd. | West | Dormitory | SO | SS | Marsiling |
| Ashtree International Pte. Ltd. | West | Dormitory | SO | SS | Marsiling |
| Titanium Safety & Security Pte Ltd | North | Dormitory | SO | SO | Hougang |
| Titanium Safety & Security Pte Ltd | West | Dormitory | SSO | SO | Woodlands |
| Titanium Safety & Security Pte Ltd | West | Dormitory | SSO | SS | Woodlands |
| Titanium Safety & Security Pte Ltd | West | Dormitory | SSO | SSO | Bukit Batok |
| TwinRock Global | North | Dormitory | SO | SO | Yishun |
| Labourtel Management Corporation Pte Ltd | East | Dormitory | CSO | SSS | Tampines West |
| Labourtel Management Corporation Pte Ltd | East | Dormitory | CSO | CSO | Hougang |
| Royal Security Management Services Pte Ltd | West | Dormitory | SO | SO | - |
| Labourtel Management Corporation Pte Ltd | East | Dormitory | CSO | CSO | Clementi |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | SO | SSO | Woodlands |
| Premier Security Co-operative Ltd | West | Dormitory | SO | SO | Bukit Batok |
| Labourtel Management Corporation Pte Ltd | East | Dormitory | CSO | CSO | Marsiling |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | East | Dormitory | SO | SO | Punggol |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | East | Dormitory | SO | SO | Punggol |
