| Guthrie FMC Security Pte Ltd | North | Dormitory | SO | SO | Sembawang |
| Elitez Security Pte Ltd | Central | Condominium | SS | SS | Woodlands |
| Fervour Pte Ltd | Island Wide | - | OM | CSO | Tampines |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Toa Payoh |
| RAS Security Pte Ltd | North | Commercial | OE | SSS | Woodlands |
| AGS Integration Pte. Ltd. | West | In-House | SS | SSS | Bukit Batok |
| C&W Services (S) Pte Ltd | Central | Gov Building | SO | SO | Mountbatten |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SS | Bukit Batok |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Punggol |
| Labourtel Management Corporation Pte Ltd | West | Dormitory | CSO | CSO | Lakeside |
| Inhouse Employer | Island Wide | Construction | OM | SSS | Woodlands |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | CSO | Sengkang |
| Prosec Services Pte Ltd | East | Data Centre | SO | SO | Simei |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SS | Bukit Panjang |
| Reachfield Security & Safety Management Pte Ltd | Central | Commercial | SO | SSO | Sengkang |
| Inhouse Employer | West | In-House | OM | SS | Hougang |
| Force-One Security | Central | Commercial | SO | SS | Toa Payoh |
| Aedge Services Pte Ltd | Island Wide | - | OM | CSO | Bukit Batok |
| Aigle Security Pte Ltd | Island Wide | - | OE | SS | Admiralty |
| Union Security Services Pte. Ltd. | North | - | SSO | SO | Bukit Batok |
| Resorts World Sentosa | South | Commercial | SS | SSS | Woodlands |
| Inhouse Employer | Central | Hotel | SS | SS | Marsiling |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | SSS | Woodlands |
| Securus Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Security & Risk Solutions Pte. Ltd. | Central | - | Office Team | SSS | Jurong East |
