| Jasa Investigation & Security Services Pte Ltd | East | Commercial | SO | SO | Simei |
| Sands Global Pte Ltd | East | Dormitory | SO | SS | Punggol |
| Reachfield Security & Safety Management Pte Ltd | West | Commercial | SS | SS | Bukit Panjang |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SSS | Yishun |
| Fervour Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| SATS Ltd | Island Wide | - | OM | SS | Hougang |
| Eagle I Security Services Pte Ltd | Island Wide | - | OE | SS | Bukit Batok |
| SATS Ltd | East | - | OE | CSO | Marsiling |
| Titanium Safety & Security Pte Ltd | Island Wide | - | OE | SSS | Bedok |
| Inhouse Employer | Central | Mix-Development | OE | SS | Bukit Batok |
| Titanium Safety & Security Pte Ltd | Island Wide | - | OE | SSO | Hougang |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | SSS | Choa Chu Kang |
| Excellent Security & Safety Pte Ltd | Central | Industrial / Factory | SSO | SSO | Toa Payoh |
| Securus Pte Ltd | Island Wide | - | OM | SSS | Sengkang |
| Trek Investigations & Security Management Services Pte Ltd | Central | Commercial | SO | SO | Punggol |
| SATS Ltd | Island Wide | - | OM | SSS | Tampines |
| York Hotel (Private) Limited | Central | In-House | OM | SSO | Simei |
| Soverus Pte Ltd | Island Wide | - | SSS | CSO | Marsiling |
| Apro Asian Protection Pte Ltd | Island Wide | - | OM | CSO | Pasir Ris |
| RAS Security Pte Ltd | North | In-House | Office Team | SS | Punggol |
| Securus Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Sands Global Pte Ltd | Central | Condominium | SSO | SSO | Choa Chu Kang |
| SATS Ltd | Island Wide | - | Inves | SSS | Dakota |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Marsiling |
| Soverus Pte Ltd | Island Wide | - | SSS | SSS | Yishun |
