| Inhouse Employer | Central | In-House | SS | SS | Yishun |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Choa Chu Kang |
| First Security & Private Investigation (Singapore) Pte Ltd | East | Condominium | SS | SS | Punggol |
| Focus Security Services Pte Ltd | East | Condominium | SS | SS | Punggol |
| Reachfield Security & Safety Management Pte Ltd | Island Wide | - | SS | SS | Bukit Panjang |
| Inhouse Employer | Central | Hotel | OE | SS | Sengkang |
| Acestes Pte Ltd | Island Wide | - | OM | SS | Woodlands |
| Inhouse Employer | Central | In-House | SS | SS | Choa Chu Kang |
| Inhouse Employer | Central | Mix-Development | Security Mgt | SS | Choa Chu Kang |
| Inhouse Employer | Central | In-House | SS | SS | Choa Chu Kang |
| Paradox Singapore Merchant Court | Central | Hotel | SSO | SS | Choa Chu Kang |
| York Hotel (Private) Limited | Central | In-House | OM | SS | Choa Chu Kang |
| Kingston Property Maintenance Services Pte Ltd | East | Condominium | SSO | SS | Aljunied |
| RAS Security Pte Ltd | North | Commercial | OE | SS | Bukit Batok |
| SMS Investigation & Security Pte Ltd | Central | Condominium | SS | SS | Choa Chu Kang |
| First Security & Private Investigation (Singapore) Pte Ltd | South | Condominium | SS | SS | Choa Chu Kang |
| GoMobile Security Solutions Pte Ltd | Central | Condominium | SS | SS | Choa Chu Kang |
| G4S Secure Solutions (Singapore) Pte Ltd | Central | Commercial | SSO | SS | Choa Chu Kang |
| Dorsett Singapore | Central | Hotel | SSO | SS | HarbourFront |
| Inhouse Employer | Central | In-House | SS | SS | HarbourFront |
| York Hotel (Private) Limited | Central | In-House | SS | SS | HarbourFront |
| Orchid Hotel Private Limited | Central | In-House | OM | SS | HarbourFront |
| AGS Integration Pte. Ltd. | West | In-House | SS | SS | HarbourFront |
| Dorsett Singapore | Central | Hotel | SSO | SS | HarbourFront |
| York Hotel (Private) Limited | Central | In-House | SS | SS | HarbourFront |
