| Kingston Property Maintenance Services Pte Ltd | Central | - | SS | SSS | Yishun |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Punggol |
| Fervour Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SS | Bukit Batok |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SSS | Lakeside |
| Certis Group | Island Wide | - | SSO | SS | Choa Chu Kang |
| G4S Secure Solutions (Singapore) Pte Ltd | East | Commercial | SSO | SSO | Simei |
| Star Security Services | Island Wide | - | Security Mgt | Nil | Bukit Batok |
| Inhouse Employer | East | In-House | SO | SO | Woodleigh |
| GATES PCM Integrated Services Pte Ltd | Island Wide | - | OE | SSO | Tampines |
| Inhouse Employer | West | In-House | OM | SS | Hougang |
| Malaysia Dairy Industries Pte Ltd | East | Commercial | OE | SSO | Simei |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | Central | Commercial | SS | SS | Aljunied |
| TwinRock Global | East | Condominium | SO | SO | Mountbatten |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| Inhouse Employer | Island Wide | Construction | OM | CSO | Toa Payoh |
| SATS Ltd | Island Wide | - | OM | SS | Pioneer |
| M Hotel Singapore City Centre | Central | Hotel | SSO | SSS | Tampines |
| AGS Integration Pte. Ltd. | Island Wide | - | SS | SSS | Pioneer |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Mgt | SSS | Tampines |
| Union Security Services Pte. Ltd. | Island Wide | - | OE | SS | Woodlands |
| Fervour Pte Ltd | Island Wide | - | OM | SS | Bukit Panjang |
| G4S Secure Solutions (Singapore) Pte Ltd | East | In-House | SSO | SSO | Bukit Batok |
| ProtectPlus Pte Ltd | Island Wide | - | OE | SO | Yishun |
