| Security & Risk Solutions Pte. Ltd. | Central | - | Office Team | SSS | Tiong Bahru |
| Peregrine Security Pte. Ltd. | South | Hotel | SSO | SSO | Bedok North |
| Star Security Services | Island Wide | - | Security Mgt | SS | Kranji |
| Inhouse Employer | Central | Mix-Development | Security Mgt | CSO | Marsiling |
| Union Security Services Pte. Ltd. | East | Condominium | SO | SO | Tampines |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SS | Clementi |
| Reachfield Security & Safety Management Pte Ltd | Central | Commercial | SS | SS | Bukit Panjang |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | - |
| Inhouse Employer | Central | Country Club | OM | CSO | Bukit Batok |
| PICO Guards Pte Ltd | South | Commercial | SSS | SSS | Choa Chu Kang |
| TwinRock Global | Central | - | Security Mgt | Nil | Ang Mo Kio |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | CSO | Bedok |
| Artyzen Singapore | Central | Hotel | SO | SO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | - |
| Crowne Plaza Changi Airport | East | Hotel | SSO | SSO | Simei |
| Inhouse Employer | East | School | SO | SO | Pasir Ris |
| Artyzen Singapore | Central | Hotel | SO | SSO | Bukit Batok |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | SSS | Toa Payoh |
| Reachfield Security & Safety Management Pte Ltd | Central | Mix-Development | SO | SSO | Sengkang |
| Pan Pacific Serviced Suites Beach Road | South | In-House | SO | SO | - |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Premier Security Co-operative Ltd | East | Commercial | SS | SS | Tampines |
| Inhouse Employer | Island Wide | Construction | OM | CSO | Bukit Batok |
| Prosegur Singapore Pte Ltd | Island Wide | - | OE | SS | Sengkang |
| Inhouse Employer | Central | School | SO | SO | Bras Basah |
