| Peregrine Security Pte. Ltd. | Island Wide | - | OE | CSO | Marsiling |
| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Yishun |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SSS | Clementi |
| Jasa Investigation & Security Services Pte Ltd | West | Industrial / Factory | SSO | SSO | Tuas Link |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SS | Woodlands |
| Total Protection Solutions Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Horus-I Pte Ltd | South | Commercial | SO | SS | Bukit Panjang |
| Strive Security Pte Ltd | Island Wide | - | OE | SS | Bukit Panjang |
| ProtectPlus Pte Ltd | Island Wide | - | OE | SO | Marsiling |
| Fervour Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | CSO | Marsiling |
| Tiger Hong Security Services & Consultants Pte Ltd | West | Condominium | SSO | SO | Tuas Link |
| Premier Security Co-operative Ltd | Island Wide | - | SSO | SO | Woodlands |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OM | SSS | Yishun |
| Inhouse Employer | East | In-House | SO | SO | - |
| SATS Ltd | Island Wide | - | Inves | SSS | Woodlands |
| Park Regis by Prince, Singapore | Central | Hotel | SSO | SS | Aljunied |
| Ranger Investigation & Security Services Pte Ltd | North | Construction | SO | SSO | Yishun |
| Security & Risk Solutions Pte. Ltd. | Central | - | Office Team | SO | Sembawang |
| Park Regis by Prince, Singapore | Central | Hotel | SSO | SS | Punggol |
| Inhouse Employer | East | In-House | SO | SO | Pasir Ris |
| Security & Risk Solutions Pte. Ltd. | Central | - | Office Team | SSS | Jurong East |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SSS | Dover |
| SATS Ltd | East | - | OE | SSS | Toa Payoh |
| Inhouse Employer | West | In-House | OM | CSO | Toa Payoh |
