| Reachfield Security & Safety Management Pte Ltd | Central | School | SO | SSO | Jurong East |
| PICO Guards Pte Ltd | Central | School | SSO | SSO | Jurong East |
| Reachfield Security & Safety Management Pte Ltd | Central | School | SO | SSO | Jurong East |
| TwinRock Global | Central | - | Security Mgt | Nil | Ang Mo Kio |
| Dragnet Smartech Security Pte Ltd | Central | - | Security Mgt | Nil | Ang Mo Kio |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SSS | Yishun |
| Soverus Pte Ltd | Central | Data Centre | SSS | SSS | Yishun |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Yishun |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Yishun |
| Kingston Property Maintenance Services Pte Ltd | Central | - | SS | SSS | Yishun |
| Kingston Property Maintenance Services Pte Ltd | Central | - | SS | SSS | Yishun |
| TwinRock Global | Central | - | Security Mgt | SSS | Yishun |
| Elitez Security Pte Ltd | Central | Commercial | SSS | SSS | Yishun |
| Inhouse Employer | Central | In-House | SSS | SSS | Yishun |
| Soverus Pte Ltd | Central | Data Centre | SSS | SSS | Yishun |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SSS | Yishun |
| Regal Security & Fire Management Services Pte Ltd | Central | - | OE | SSS | Yishun |
| IGC Security Services Pte Ltd | Central | Condominium | SS | SS | Woodlands |
| Dragnet Smartech Security Pte Ltd | Central | Condominium | SS | SS | Woodlands |
| Inhouse Employer | Central | Country Club | OM | SS | Ang Mo Kio |
| Peregrine Security Pte. Ltd. | Central | - | SSO | CSO | Bedok |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | Pasir Ris |
| Orchid Hotel Private Limited | Central | In-House | OM | SSS | Yishun |
| SMS Investigation & Security Pte Ltd | Central | - | OM | SSS | Yishun |
| York Hotel (Private) Limited | Central | In-House | OM | SSS | Yishun |
