| SMS Investigation & Security Pte Ltd | Central | - | OM | SSS | Sengkang |
| SATS Ltd | East | - | OE | SSS | Sengkang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Strive Security Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| TwinRock Global | Central | - | Security Mgt | SSS | Sengkang |
| Ascentiaa Security Management Pte Ltd | Island Wide | - | SS | SSS | Sengkang |
| Star Security Services | Island Wide | - | Security Mgt | SSS | Sengkang |
| Crowne Plaza Changi Airport | East | In-House | OM | SS | Sengkang |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Sengkang |
| Artyzen Singapore | Central | Hotel | SO | SO | Sengkang |
| Inhouse Employer | West | In-House | OM | SSS | Sengkang |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Sengkang |
| Fervour Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| Acestes Pte Ltd | Central | - | Security Mgt | SO | Sengkang |
| Inhouse Employer | Central | Country Club | OM | CSO | Sengkang |
| RAS Security Pte Ltd | North | Commercial | OE | SO | Sengkang |
| Brink's Singapore Pte Ltd | East | - | SO | SO | Sengkang |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | Sengkang |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SS | Sengkang |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | Sengkang |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Sengkang |
| Fervour Pte Ltd | Island Wide | - | OM | SS | Sengkang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Sengkang |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | SS | Sengkang |
| Crowne Plaza Changi Airport | East | In-House | OE | SS | Sengkang |
