| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Strive Security Pte Ltd | Island Wide | - | OE | SSS | Pioneer |
| Inhouse Employer | Central | Mix-Development | Security Mgt | SSS | Pioneer |
| Star Security Services | Island Wide | - | Security Mgt | SSS | Pioneer |
| TwinRock Global | Central | - | Security Mgt | SSS | Pioneer |
| Acestes Pte Ltd | Island Wide | - | Security Mgt | SSS | Punggol |
| IGC Security Services Pte Ltd | South | Commercial | SS | SSS | Pioneer |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SSS | Pioneer |
| Soverus Pte Ltd | Central | Commercial | SSS | SSS | Pioneer |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Strive Security Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Inhouse Employer | West | School | OE | SSS | Jurong East |
| Premier Security Co-operative Ltd | Central | Healthcare | SSS | SSS | Sembawang |
| Inhouse Employer | Central | In-House | SS | SSS | Redhill |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Redhill |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Redhill |
| Force-One Security | North | Data Centre | SS | SSS | Redhill |
| Artyzen Singapore | Central | Hotel | SS | SSS | Redhill |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Force-One Security | North | Data Centre | SS | SSS | Redhill |
| Inhouse Employer | Island Wide | - | OE | SSS | Redhill |
| Inhouse Employer | Central | Mix-Development | Security Mgt | SSS | Redhill |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Bishan |
