| Inhouse Employer | Island Wide | - | OE | SSS | Toa Payoh |
| Elid Technology International Pte Ltd | Central | Hotel | SSO | SO | Jurong East |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SS | Bukit Panjang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SO | Woodlands |
| Ascentiaa Security Management Pte Ltd | East | Condominium | SSO | SSO | Pasir Ris |
| RAS Security Pte Ltd | East | Commercial | SSO | SSO | Bedok |
| PICO Guards Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Woodlands |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | CSO | Marsiling |
| Inhouse Employer | East | In-House | SO | SSS | MacPherson |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | CSO | Yishun |
| Inhouse Employer | North | In-House | SO | SS | Yishun |
| Inhouse Employer | West | In-House | OM | CSO | Marsiling |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | HarbourFront |
| Union Security Services Pte. Ltd. | East | Data Centre | SS | CSO | Marsiling |
| AETOS Holdings Pte Ltd | Island Wide | Mix-Development | APO | Nil | Admiralty |
| PICO Guards Pte Ltd | Island Wide | - | OM | CSO | Toa Payoh |
| Metropolis Security Systems Pte Ltd | East | Gov Building | SSO | SS | Aljunied |
| Grand Copthorne Waterfront Hotel | Central | In-House | Security Managment | SS | Bukit Panjang |
| TwinRock Global | Central | - | Security Mgt | SSS | Tampines |
| SATS Ltd | Island Wide | Commercial | APO | SO | Choa Chu Kang |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SO | Bukit Batok |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | SS | Punggol |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Yishun |
