| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | CSO | Bukit Panjang |
| Star Security Services | Island Wide | - | Security Mgt | CSO | Bukit Panjang |
| Elid Technology International Pte Ltd | West | Condominium | SS | CSO | Bukit Panjang |
| Soverus Pte Ltd | Central | Commercial | SSS | CSO | Bukit Panjang |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SS | Bukit Panjang |
| Securus Pte Ltd | Island Wide | - | OM | SS | Bukit Panjang |
| Fervour Pte Ltd | Island Wide | - | OM | SS | Bukit Panjang |
| Titanium Safety & Security Pte Ltd | North | In-House | OE | SS | Bukit Panjang |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SS | Bukit Panjang |
| Acestes Pte Ltd | Island Wide | - | OM | SS | Bukit Panjang |
| Fervour Pte Ltd | Island Wide | - | OM | SS | Bukit Panjang |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SS | Bukit Panjang |
| Metropolis Security Systems Pte Ltd | West | Condominium | SO | SO | Bukit Panjang |
| First Security & Private Investigation (Singapore) Pte Ltd | West | Condominium | SO | SO | Bukit Panjang |
| Elid Technology International Pte Ltd | West | Condominium | SO | SO | Bukit Panjang |
| First Security & Private Investigation (Singapore) Pte Ltd | West | Condominium | SS | SO | Bukit Panjang |
| First Security & Private Investigation (Singapore) Pte Ltd | West | Condominium | SS | SO | Bukit Panjang |
| SMS Investigation & Security Pte Ltd | Central | Commercial | SS | SO | Bukit Panjang |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | SS | SS | Bukit Panjang |
| GoMobile Security Solutions Pte Ltd | West | Condominium | SO | SO | Bukit Panjang |
| PICO Guards Pte Ltd | Central | School | SO | SO | Bukit Panjang |
| Trek Investigations & Security Management Services Pte Ltd | Central | Condominium | SO | SO | Bukit Panjang |
| Inhouse Employer | North | Industrial / Factory | SSO | CSO | Bukit Panjang |
| Inhouse Employer | West | School | SO | CSO | Bukit Panjang |
| Inhouse Employer | West | School | OE | CSO | Bukit Panjang |
