| Peregrine Security Pte. Ltd. | Central | Commercial | SSO | SSO | Bukit Batok |
| Acestes Pte Ltd | Island Wide | - | OM | SSS | Yishun |
| SATS Ltd | East | - | OE | CSO | Toa Payoh |
| Securus Pte Ltd | Island Wide | - | OE | SSS | Tampines West |
| Global Ritz Protection (Security Services) Pte Ltd | Island Wide | - | OE | SSS | Clementi |
| Soverus Pte Ltd | Island Wide | - | OE | CSO | Bedok |
| Danmax Security Management Pte Ltd | East | Industrial / Factory | SSO | SO | Tampines |
| Fervour Pte Ltd | West | School | SO | SO | Bras Basah |
| Unique Security Services Pte Ltd | East | Condominium | SSO | SSS | MacPherson |
| Danmax Security Management Pte Ltd | East | - | OE | CSO | Bedok |
| Danmax Security Management Pte Ltd | East | - | OE | CSO | Bedok |
| Security & Risk Solutions Pte. Ltd. | Central | - | Office Team | SSS | Punggol |
| Prosec Services Pte Ltd | East | Data Centre | SO | SO | Tampines |
| Union Security Services Pte. Ltd. | North | Commercial | SS | SS | Marsiling |
| ADT Integrated Security Solutions Pte. Ltd. | West | Commercial | SSO | SS | Punggol |
| Fervour Pte Ltd | Island Wide | - | OM | CSO | Yew Tee |
| Bulls-Eye Security Services Pte Ltd | Central | In-House | SSO | SSO | Pasir Ris |
| Paradox Singapore Merchant Court | Central | Hotel | SSO | SO | Jurong East |
| Uniforce Security Services Pte Ltd | Island Wide | - | OE | CSO | Pasir Ris |
| Aero Asia Security Systems Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Trek Investigations & Security Management Services Pte Ltd | Island Wide | - | OE | SSS | Bukit Batok |
| Elid Technology International Pte Ltd | Central | Hotel | SSO | SS | Farrer Park |
| G4S Secure Solutions (Singapore) Pte Ltd | Island Wide | - | OE | SSS | Sengkang |
| Inhouse Employer | Central | Mix-Development | OE | SSS | Tampines West |
| Inhouse Employer | Island Wide | Construction | OM | SO | Sembawang |
