| Mainguard Security Services (S) Pte Ltd | South | Construction | SO | SSO | Tuas Link |
| Inhouse Employer | East | School | SO | SO | Pasir Ris |
| Sands Global Pte Ltd | East | Condominium | SO | SO | Pasir Ris |
| Inhouse Employer | East | In-House | SO | SO | Pasir Ris |
| AETOS Holdings Pte Ltd | West | - | SO | SO | Yishun |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Punggol |
| Young Women's Christian Association of Singapore | Central | In-House | SO | SS | Aljunied |
| SEOMEO RELC | Central | In-House | SO | SS | Aljunied |
| Fervour Pte Ltd | Central | Data Centre | SO | SSO | - |
| Union Security Services Pte. Ltd. | Island Wide | Commercial | SO | SSO | - |
| PICO Guards Pte Ltd | East | Commercial | SO | SSO | - |
| Inhouse Employer | East | In-House | SO | SO | Simei |
| Prosec Services Pte Ltd | East | Data Centre | SO | SO | Simei |
| Prospect Protection Pte Ltd | East | Industrial / Factory | SO | SO | Simei |
| Prospect Protection Pte Ltd | East | Industrial / Factory | SO | SO | Simei |
| Premier Security Co-operative Ltd | East | Commercial | SO | SO | Simei |
| Premier Security Co-operative Ltd | East | Commercial | SO | SO | Simei |
| Octopus Distribution Networks Pte Ltd | East | In-House | SO | SO | Simei |
| Royal Security Management Services Pte Ltd | East | Gov Building | SO | SO | Simei |
| Premier Security Co-operative Ltd | East | Commercial | SO | SO | Simei |
| Jasa Investigation & Security Services Pte Ltd | East | Healthcare | SO | SO | Punggol |
| Iconic Locations S Pte Ltd | Central | In-House | SO | SO | Pasir Ris |
| Inhouse Employer | East | School | SO | SO | Pasir Ris |
| Supreme Security Agency Pte. Ltd. | West | Industrial / Factory | SO | SO | Woodlands |
| Soverus Pte Ltd | North | Industrial / Factory | SO | SO | Woodlands |
