| Acestes Pte Ltd | Island Wide | - | OM | SO | Yishun |
| Securus Pte Ltd | Island Wide | - | OE | SO | Yishun |
| GoMobile Security Solutions Pte Ltd | Island Wide | - | OM | SO | Yishun |
| TwinRock Global | Central | - | Security Mgt | SO | Yishun |
| Fervour Pte Ltd | Island Wide | - | OM | SO | Yishun |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SO | Sengkang |
| King's Security and Safety Management Pte Ltd | Island Wide | - | Sec Tech / Eng | SO | Sengkang |
| Inhouse Employer | West | In-House | OM | SO | Sengkang |
| SATS Ltd | Island Wide | - | Inves | SO | Sengkang |
| Inhouse Employer | West | In-House | OM | SO | Sengkang |
| PICO Guards Pte Ltd | Island Wide | - | OM | SO | Sengkang |
| SATS Ltd | Island Wide | - | OM | SO | Sengkang |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SO | Sengkang |
| Inhouse Employer | South | In-House | SO | SO | Pasir Panjang |
| Inhouse Employer | South | In-House | SO | SO | Pasir Panjang |
| Force-One Security | North | Data Centre | SS | SO | Sengkang |
| Crowne Plaza Changi Airport | East | In-House | OM | SO | Tampines |
| SMS Investigation & Security Pte Ltd | Central | Condominium | SO | SO | Bukit Gombak |
| Elid Technology International Pte Ltd | West | Condominium | SO | SO | Bukit Gombak |
| GoMobile Security Solutions Pte Ltd | West | Condominium | SO | SO | Bukit Gombak |
| Inhouse Employer | West | Industrial / Factory | SO | SO | Bukit Gombak |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | West | Dormitory | SO | SO | Bukit Gombak |
| Primesafe Security & Investigation Pte Ltd | South | Commercial | SS | SO | Bright Hill |
| Soverus Pte Ltd | Central | Industrial / Factory | SS | SO | Bright Hill |
| Certis Group | West | Mix-Development | SO | SO | Bukit Gombak |
