| Inhouse Employer | Central | Mix-Development | Security Mgt | CSO | Marsiling |
| York Hotel (Private) Limited | Central | In-House | OM | CSO | Marsiling |
| SMS Investigation & Security Pte Ltd | Central | - | OM | CSO | Marsiling |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | CSO | Marsiling |
| Inhouse Employer | Central | In-House | SSS | CSO | Marsiling |
| Inhouse Employer | Central | Mix-Development | Security Mgt | CSO | Marsiling |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SSS | Sengkang |
| Premier Security Co-operative Ltd | Central | Healthcare | SSS | SSS | Yishun |
| Premier Security Co-operative Ltd | Central | Healthcare | SSS | SSS | Tampines |
| Dragnet Smartech Security Pte Ltd | Central | Commercial | SO | SSO | Tampines |
| Union Security Services Pte. Ltd. | Central | Industrial / Factory | SS | SO | - |
| IGC Security Services Pte Ltd | Central | Condominium | SS | SO | - |
| Chang & Chang Security Management Pte. Ltd. | Central | Condominium | SS | SO | - |
| Dragnet Smartech Security Pte Ltd | Central | Condominium | SS | SS | - |
| Uniforce Security Services Pte Ltd | Central | Condominium | SS | SS | - |
| Riverfort Pte Ltd | Central | Hotel | SO | SO | Punggol |
| Dragnet Smartech Security Pte Ltd | Central | - | Security Mgt | Nil | Tampines |
| Orchid Hotel Private Limited | Central | In-House | OM | Nil | Tampines |
| Trek Investigations & Security Management Services Pte Ltd | Central | Commercial | SO | SO | Punggol |
| Reachfield Security & Safety Management Pte Ltd | Central | Commercial | SO | SO | Punggol |
| GATES PCM Integrated Services Pte Ltd | Central | School | SO | SO | Punggol |
| Inhouse Employer | Central | Country Club | OM | SSO | Hougang |
| Kingston Property Maintenance Services Pte Ltd | Central | Mix-Development | SS | SSS | Pasir Ris |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | School | SO | SO | Punggol |
| GATES PCM Integrated Services Pte Ltd | Central | School | SO | SO | Punggol |
