| Peregrine Security Pte. Ltd. | Central | Commercial | SS | SS | Sengkang |
| Inhouse Employer | Central | In-House | SS | CSO | Pioneer |
| Force-One Security | North | Data Centre | SS | SSO | Sembawang |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Pasir Ris |
| Securitas Guarding Services (Singapore) Pte Ltd | East | Data Centre | SO | SO | Hougang |
| Soverus Pte Ltd | West | Industrial / Factory | SO | SO | - |
| Power Security Guard Agency Pte Ltd | North | Condominium | SO | SO | Khatib |
| Inhouse Employer | East | In-House | SO | SO | Pasir Ris |
| Ashtree International Pte. Ltd. | West | Dormitory | SO | SO | Bukit Batok |
| Republic of Singapore Yacht Club | West | In-House | SO | SO | - |
| Inhouse Employer | Central | School | SO | SO | - |
| Ashtree International Pte. Ltd. | West | Dormitory | SO | SS | Bukit Panjang |
| Metropolis Security Systems Pte Ltd | Central | Industrial / Factory | SO | SSS | Geylang Bahru |
| Ademco Security Pte Ltd | West | Industrial / Factory | SO | SO | - |
| Inhouse Employer | West | Industrial / Factory | SO | SO | - |
| Artyzen Singapore | Central | Hotel | SO | SO | - |
| Hilton Garden Inn Singapore Serangoon | Central | In-House | SO | SO | - |
| Inhouse Employer | West | School | SO | SO | - |
| SEOMEO RELC | Central | In-House | SO | SO | - |
| Inhouse Employer | Central | In-House | SO | SO | - |
| Inhouse Employer | North | In-House | SO | SO | - |
| Octopus Distribution Networks Pte Ltd | East | In-House | SO | SO | - |
| Premier Security Co-operative Ltd | West | Dormitory | SO | SO | - |
| Securus Pte Ltd | East | Commercial | SO | SO | Sengkang |
| Inhouse Employer | East | In-House | SO | SO | Pasir Ris |
