| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SSS | Dover |
| Malaysia Dairy Industries Pte Ltd | East | Commercial | OE | SSS | Punggol |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Yishun |
| Inhouse Employer | Central | In-House | SSS | SSS | Choa Chu Kang |
| Kingston Property Maintenance Services Pte Ltd | Central | - | SS | SSS | Tanjong Pagar |
| PICO Guards Pte Ltd | Central | Commercial | SSS | SSS | Tanjong Pagar |
| Elitez Security Pte Ltd | Central | Commercial | SSS | SSS | Tanjong Pagar |
| Elitez Security Pte Ltd | Central | Commercial | SSS | SSS | Tampines West |
| Inhouse Employer | Central | In-House | SSS | SSS | Tampines West |
| Inhouse Employer | Central | In-House | SSS | SSS | Tanjong Pagar |
| Dragnet Smartech Security Pte Ltd | West | Commercial | SS | SSS | Queenstown |
| Prosec Services Pte Ltd | South | Commercial | SSS | SSS | Tanjong Pagar |
| SATS Ltd | East | - | OE | SSS | Sengkang |
| Royal Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SSS | Sengkang |
| Union Security Services Pte. Ltd. | Island Wide | - | OE | SSS | Sengkang |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Commercial | OE | SSS | Sengkang |
| SATS Ltd | Island Wide | - | OM | SSS | Sengkang |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SSS | Sengkang |
| PICO Guards Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Sengkang |
