| Artyzen Singapore | Central | Hotel | SS | SS | HarbourFront |
| Union Security Services Pte. Ltd. | Island Wide | - | OE | SSS | Sengkang |
| Titanium Safety & Security Pte Ltd | North | In-House | OE | SS | Hougang |
| Dragnet Smartech Security Pte Ltd | Central | - | Security Mgt | Nil | Tampines |
| TwinRock Global | South | Condominium | SO | SSS | Clementi |
| William Secure Solutions Pte Ltd | Central | Condominium | SS | SS | Hougang |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | Industrial / Factory | SSS | SSS | Dover |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SSO | Bedok |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | CSO | Marsiling |
| Acestes Pte Ltd | Island Wide | - | Security Mgt | SSO | Tampines |
| Fervour Pte Ltd | North | Retail | SO | SO | Aljunied |
| JEN Singapore Tanglin by Shangri-La | Central | In-House | OM | SSS | Woodlands |
| G4S Secure Solutions (Singapore) Pte Ltd | South | Commercial | SSO | SSO | Jurong East |
| TwinRock Global | Central | - | Security Mgt | SSS | Tampines |
| Guthrie FMC Security Pte Ltd | North | Dormitory | SO | SO | Yishun |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | In-House | SSO | SSO | Bukit Batok |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SS | Woodlands |
| FormTeam Consultancy Pte Ltd | Island Wide | - | OE | CSO | Marsiling |
| Securus Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Securus Pte Ltd | Island Wide | - | OM | SSS | Tampines |
| Guthrie FMC Security Pte Ltd | Island Wide | - | OE | SS | Sengkang |
| Inhouse Employer | Central | School | SO | SO | Bras Basah |
| Orchid Hotel Private Limited | Central | In-House | OM | CSO | Toa Payoh |
| Fervour Pte Ltd | North | Retail | SO | SO | Aljunied |
| Inhouse Employer | West | School | OE | SSS | Woodlands |
