| Guthrie FMC Security Pte Ltd | North | Dormitory | SO | SO | Sembawang |
| SMS Investigation & Security Pte Ltd | North | Condominium | SO | SO | Sembawang |
| 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 |
| Hillcrest Security & Management Services Pte Ltd | East | Condominium | SO | SO | Jurong East |
| Reachfield Security & Safety Management Pte Ltd | Central | School | SO | SO | Yishun |
| Resorts World Sentosa | South | Commercial | SO | Nil | Jurong East |
| Aigle Security Pte Ltd | South | Condominium | SO | Nil | Jurong East |
| Trek Investigations & Security Management Services Pte Ltd | Central | Condominium | SO | SSO | Pasir Ris |
| Concorde Security Pte Ltd | Central | Commercial | SO | SSO | Pasir Ris |
| Reachfield Security & Safety Management Pte Ltd | Central | Gov Building | SO | Nil | Jurong East |
| Force-One Security | Central | Commercial | SO | SSO | Pasir Ris |
| Aspectus Consultancy Pte Ltd | Central | Mix-Development | SO | SSO | Pasir Ris |
| Premier Security Co-operative Ltd | South | Commercial | SO | SO | Yishun |
| AETOS Holdings Pte Ltd | West | - | SO | SO | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Mountbatten |
| Inhouse Employer | East | In-House | SO | SO | Pasir Ris |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Mountbatten |
| Certis Group | Island Wide | Commercial | SO | SO | Yishun |
| Reachfield Security & Safety Management Pte Ltd | North | - | SO | SO | Yishun |
| Inhouse Employer | East | In-House | SO | SSS | MacPherson |
| Inhouse Employer | Central | In-House | SO | SSS | MacPherson |
| Inhouse Employer | East | School | SO | SSS | MacPherson |
