| Force-One Security | North | Data Centre | SO | SO | Serangoon |
| Inhouse Employer | East | School | SO | SO | Serangoon |
| Reachfield Security & Safety Management Pte Ltd | East | School | SO | SO | Tampines |
| GoMobile Security Solutions Pte Ltd | West | Condominium | SO | SO | Bukit Panjang |
| PICO Guards Pte Ltd | Central | School | SO | SO | Bukit Panjang |
| M Social Singapore | Central | Hotel | OE | SO | Jurong East |
| Trek Investigations & Security Management Services Pte Ltd | Central | Condominium | SO | SO | Bukit Panjang |
| Reachfield Security & Safety Management Pte Ltd | South | School | SO | SO | Aljunied |
| Horus I (Private Limited) | Central | Retail | SO | SO | Tampines |
| Brink's Singapore Pte Ltd | East | - | SO | SO | Pasir Ris |
| Concorde Security Pte Ltd | Island Wide | - | OE | SO | Pasir Ris |
| Soverus Pte Ltd | East | School | SO | SO | Yishun |
| Sands Global Pte Ltd | Central | Condominium | SS | SO | Bright Hill |
| Brink's Singapore Pte Ltd | East | - | SO | SO | Pasir Ris |
| Concorde Security Pte Ltd | Island Wide | - | OE | SO | Pasir Ris |
| Securus Pte Ltd | Island Wide | - | OE | SO | - |
| PICO Guards Pte Ltd | Island Wide | - | OE | SO | - |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SO | - |
| Force-One Security | North | Data Centre | OE | SO | - |
| Securus Pte Ltd | Island Wide | - | OE | SO | - |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SO | - |
| Securus Pte Ltd | Island Wide | - | OE | SO | - |
| William Secure Solutions Pte Ltd | West | Condominium | SS | SO | - |
| Inhouse Employer | Island Wide | - | OE | SO | - |
| Sands Global Pte Ltd | Central | Condominium | SS | SO | - |
