| Inhouse Employer | South | School | SO | SS | Bukit Batok |
| Fervour Pte Ltd | East | School | SSO | SSO | Simei |
| Premier Security Co-operative Ltd | North | School | SSS | CSO | Woodlands |
| PICO Guards Pte Ltd | Central | School | SO | SSO | Commonwealth |
| PICO Guards Pte Ltd | Central | School | SSO | SSO | Commonwealth |
| Inhouse Employer | South | School | SO | SO | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | West | School | SSO | SSO | Pioneer |
| GATES PCM Integrated Services Pte Ltd | West | School | SO | SO | Woodlands |
| Inhouse Employer | East | School | SO | SO | Pasir Ris |
| Inhouse Employer | East | School | SO | SO | Pasir Ris |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Sengkang |
| Inhouse Employer | West | School | OE | SS | Kranji |
| G4S Secure Solutions (Singapore) Pte Ltd | East | School | SO | SS | Punggol |
| G4S Secure Solutions (Singapore) Pte Ltd | East | School | SO | SS | Punggol |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Sengkang |
| Inhouse Employer | Central | School | SO | CSO | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | West | School | SO | SO | Yishun |
| Reachfield Security & Safety Management Pte Ltd | West | School | SO | SO | Yishun |
| Inhouse Employer | East | School | SO | SO | Pasir Ris |
| Reachfield Security & Safety Management Pte Ltd | South | School | SO | SO | Pasir Ris |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Pasir Ris |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Pasir Ris |
| Inhouse Employer | East | School | SO | SO | Pasir Ris |
| Reachfield Security & Safety Management Pte Ltd | Central | School | SO | SO | Yishun |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Mountbatten |
