| Uniforce Security Services Pte Ltd | Island Wide | - | OE | SSS | Jurong East |
| Securus Pte Ltd | Island Wide | - | OE | SSS | Toa Payoh |
| Force-One Security | North | Data Centre | OE | SSS | Toa Payoh |
| Metropolis Security Systems Pte Ltd | Island Wide | - | OE | SSS | Toa Payoh |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SSS | Toa Payoh |
| Shine Security Agency Pte Ltd | Island Wide | - | OE | SSS | Toa Payoh |
| RAS Security Pte Ltd | North | Commercial | OE | SSS | Toa Payoh |
| Inhouse Employer | Island Wide | - | OE | SSS | Toa Payoh |
| Titanium Safety & Security Pte Ltd | Island Wide | - | OE | SSS | Toa Payoh |
| Eagle I Security Services Pte Ltd | Island Wide | - | OE | SSS | Toa Payoh |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SSS | Toa Payoh |
| Soverus Pte Ltd | Island Wide | - | OE | SSS | Toa Payoh |
| Overseas (Singapore) Security & Private Investigation Consultants Pte Ltd | Island Wide | - | OE | SSS | Toa Payoh |
| Titanium Safety & Security Pte Ltd | North | In-House | OE | SSS | Toa Payoh |
| Peregrine Security Pte. Ltd. | Island Wide | - | OE | SSS | Toa Payoh |
| SATS Ltd | East | - | OE | SSS | Toa Payoh |
| Crowne Plaza Changi Airport | East | In-House | OE | SSS | Toa Payoh |
| Triple ‘S’ Protection Pte Ltd | Island Wide | - | OE | SSS | Toa Payoh |
| M Social Singapore | Central | Hotel | OE | SSS | Toa Payoh |
| Inhouse Employer | Central | Mix-Development | OE | SSS | Toa Payoh |
| Inhouse Employer | Central | Hotel | OE | SS | Jalan Besar |
| Soverus Pte Ltd | Island Wide | - | OE | CSO | Toa Payoh |
| SATS Ltd | East | - | OE | CSO | Toa Payoh |
| Force-One Security | North | Data Centre | OE | CSO | Toa Payoh |
| Malaysia Dairy Industries Pte Ltd | East | Commercial | OE | CSO | Yishun |
