| Dragnet Smartech Security Pte Ltd | Central | Commercial | SO | SSO | Tampines |
| Reachfield Security & Safety Management Pte Ltd | Central | School | SO | SSO | Jurong East |
| Reachfield Security & Safety Management Pte Ltd | Central | School | SO | SSO | Jurong East |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SS | Simei |
| Union Security Services Pte. Ltd. | East | Data Centre | SO | SO | Tampines |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SO | SSO | Eunos |
| Metropolis Security Systems Pte Ltd | North | - | SO | SSO | Sembawang |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | Retail | SO | SO | - |
| GATES PCM Integrated Services Pte Ltd | Central | Gov Building | SO | SS | Pioneer |
| Inhouse Employer | East | In-House | SO | SO | - |
| Inhouse Employer | East | In-House | SO | SO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | - |
| Inhouse Employer | East | In-House | SO | SO | - |
| AETOS Holdings Pte Ltd | West | - | SO | SS | Marsiling |
| Inhouse Employer | East | In-House | SO | SO | - |
| Serangoon Gardens Country Club | Central | Country Club | SO | SO | - |
| G4S Secure Solutions (Singapore) Pte Ltd | South | - | SO | SO | - |
| Resorts World Sentosa | South | Commercial | SO | SO | - |
| Pedro Investigations & Security Services Pte. Ltd. | Central | Industrial / Factory | SO | SS | Tuas Link |
| Crowne Plaza Changi Airport | East | Hotel | SO | SS | Pasir Ris |
| TwinRock Global | Central | - | SO | CSO | Bedok |
| Metropolis Security Systems Pte Ltd | North | - | SO | SSO | - |
| Triple ‘S’ Protection Pte Ltd | Island Wide | Commercial | SO | SO | - |
| SMS Investigation & Security Pte Ltd | West | Condominium | SO | SO | Choa Chu Kang |
| TwinRock Global | South | Condominium | SO | SO | Choa Chu Kang |
