| Inhouse Employer | East | School | SO | SO | Bedok |
| Peregrine Security Pte. Ltd. | Central | School | SO | SO | Bedok |
| Inhouse Employer | East | School | SO | SO | Bedok |
| Inhouse Employer | East | School | SO | SO | Bedok |
| Inhouse Employer | East | School | SO | SO | Bedok |
| Inhouse Employer | East | School | SO | SO | Bedok |
| Premier Security Co-operative Ltd | North | School | SSO | SSO | Potong Pasir |
| Inhouse Employer | Central | School | SO | SSO | Marsiling |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | School | SO | SO | Yishun |
| Reachfield Security & Safety Management Pte Ltd | Central | School | Security Mgt | SSO | Marsiling |
| Reachfield Security & Safety Management Pte Ltd | North | School | SO | SO | Yishun |
| PICO Guards Pte Ltd | North | School | SO | SO | Yishun |
| Reachfield Security & Safety Management Pte Ltd | South | School | SO | SO | Yishun |
| PICO Guards Pte Ltd | North | School | SO | SO | Yishun |
| Soverus Pte Ltd | North | School | SO | SO | Serangoon |
| Soverus Pte Ltd | North | School | SO | SO | Serangoon |
| Inhouse Employer | East | School | SO | SO | Serangoon |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Tampines |
| Inhouse Employer | West | School | OE | SSS | Jurong East |
| PICO Guards Pte Ltd | Central | School | SO | SO | Bukit Panjang |
| Reachfield Security & Safety Management Pte Ltd | South | School | SO | SO | Aljunied |
| Soverus Pte Ltd | East | School | SO | SO | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | East | School | SO | SO | Lavender |
| Inhouse Employer | West | School | OE | SSS | Woodlands |
| Reachfield Security & Safety Management Pte Ltd | North | School | SSS | SSS | Lakeside |
